Add nullability annotations to Java generated clients (#19617)

* issue-1960: Add nullability annotations to Java generated clients

Motivations:
Have generated clients properly annotated for nullability to be able to check code using them with tools like NullAway

Modifications:
* Add nullable_var_annotations template to handle nullability annotation on vars
* Add pojo templates to use the nullability template
* Adapt tests

* issue-1960: Add nullability annotations to Java generated clients

Modifications:
* Run export_docs_generator.sh script to update samples

samples/openapi3/client/petstore/java/jersey2-java8/src/main/java/org/openapitools/client/model/AdditionalPropertiesClass.java

@@ -48,33 +48,40 @@ import org.openapitools.client.JSON;
 @javax.annotation.Generated(value = "org.openapitools.codegen.languages.JavaClientCodegen", comments = "Generator version: 7.10.0-SNAPSHOT")
 public class AdditionalPropertiesClass {
   public static final String JSON_PROPERTY_MAP_PROPERTY = "map_property";
+  @javax.annotation.Nullable
   private Map<String, String> mapProperty = new HashMap<>();
 
   public static final String JSON_PROPERTY_MAP_OF_MAP_PROPERTY = "map_of_map_property";
+  @javax.annotation.Nullable
   private Map<String, Map<String, String>> mapOfMapProperty = new HashMap<>();
 
   public static final String JSON_PROPERTY_ANYTYPE1 = "anytype_1";
   private JsonNullable<Object> anytype1 = JsonNullable.<Object>of(null);
 
   public static final String JSON_PROPERTY_MAP_WITH_UNDECLARED_PROPERTIES_ANYTYPE1 = "map_with_undeclared_properties_anytype_1";
+  @javax.annotation.Nullable
   private Object mapWithUndeclaredPropertiesAnytype1;
 
   public static final String JSON_PROPERTY_MAP_WITH_UNDECLARED_PROPERTIES_ANYTYPE2 = "map_with_undeclared_properties_anytype_2";
+  @javax.annotation.Nullable
   private Object mapWithUndeclaredPropertiesAnytype2;
 
   public static final String JSON_PROPERTY_MAP_WITH_UNDECLARED_PROPERTIES_ANYTYPE3 = "map_with_undeclared_properties_anytype_3";
+  @javax.annotation.Nullable
   private Map<String, Object> mapWithUndeclaredPropertiesAnytype3 = new HashMap<>();
 
   public static final String JSON_PROPERTY_EMPTY_MAP = "empty_map";
+  @javax.annotation.Nullable
   private Object emptyMap;
 
   public static final String JSON_PROPERTY_MAP_WITH_UNDECLARED_PROPERTIES_STRING = "map_with_undeclared_properties_string";
+  @javax.annotation.Nullable
   private Map<String, String> mapWithUndeclaredPropertiesString = new HashMap<>();
 
   public AdditionalPropertiesClass() { 
   }
 
-  public AdditionalPropertiesClass mapProperty(Map<String, String> mapProperty) {
+  public AdditionalPropertiesClass mapProperty(@javax.annotation.Nullable Map<String, String> mapProperty) {
     this.mapProperty = mapProperty;
     return this;
   }
@@ -102,12 +109,12 @@ public class AdditionalPropertiesClass {
 
   @JsonProperty(JSON_PROPERTY_MAP_PROPERTY)
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
-  public void setMapProperty(Map<String, String> mapProperty) {
+  public void setMapProperty(@javax.annotation.Nullable Map<String, String> mapProperty) {
     this.mapProperty = mapProperty;
   }
 
 
-  public AdditionalPropertiesClass mapOfMapProperty(Map<String, Map<String, String>> mapOfMapProperty) {
+  public AdditionalPropertiesClass mapOfMapProperty(@javax.annotation.Nullable Map<String, Map<String, String>> mapOfMapProperty) {
     this.mapOfMapProperty = mapOfMapProperty;
     return this;
   }
@@ -135,12 +142,12 @@ public class AdditionalPropertiesClass {
 
   @JsonProperty(JSON_PROPERTY_MAP_OF_MAP_PROPERTY)
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
-  public void setMapOfMapProperty(Map<String, Map<String, String>> mapOfMapProperty) {
+  public void setMapOfMapProperty(@javax.annotation.Nullable Map<String, Map<String, String>> mapOfMapProperty) {
     this.mapOfMapProperty = mapOfMapProperty;
   }
 
 
-  public AdditionalPropertiesClass anytype1(Object anytype1) {
+  public AdditionalPropertiesClass anytype1(@javax.annotation.Nullable Object anytype1) {
     this.anytype1 = JsonNullable.<Object>of(anytype1);
     return this;
   }
@@ -168,12 +175,12 @@ public class AdditionalPropertiesClass {
     this.anytype1 = anytype1;
   }
 
-  public void setAnytype1(Object anytype1) {
+  public void setAnytype1(@javax.annotation.Nullable Object anytype1) {
     this.anytype1 = JsonNullable.<Object>of(anytype1);
   }
 
 
-  public AdditionalPropertiesClass mapWithUndeclaredPropertiesAnytype1(Object mapWithUndeclaredPropertiesAnytype1) {
+  public AdditionalPropertiesClass mapWithUndeclaredPropertiesAnytype1(@javax.annotation.Nullable Object mapWithUndeclaredPropertiesAnytype1) {
     this.mapWithUndeclaredPropertiesAnytype1 = mapWithUndeclaredPropertiesAnytype1;
     return this;
   }
@@ -193,12 +200,12 @@ public class AdditionalPropertiesClass {
 
   @JsonProperty(JSON_PROPERTY_MAP_WITH_UNDECLARED_PROPERTIES_ANYTYPE1)
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
-  public void setMapWithUndeclaredPropertiesAnytype1(Object mapWithUndeclaredPropertiesAnytype1) {
+  public void setMapWithUndeclaredPropertiesAnytype1(@javax.annotation.Nullable Object mapWithUndeclaredPropertiesAnytype1) {
     this.mapWithUndeclaredPropertiesAnytype1 = mapWithUndeclaredPropertiesAnytype1;
   }
 
 
-  public AdditionalPropertiesClass mapWithUndeclaredPropertiesAnytype2(Object mapWithUndeclaredPropertiesAnytype2) {
+  public AdditionalPropertiesClass mapWithUndeclaredPropertiesAnytype2(@javax.annotation.Nullable Object mapWithUndeclaredPropertiesAnytype2) {
     this.mapWithUndeclaredPropertiesAnytype2 = mapWithUndeclaredPropertiesAnytype2;
     return this;
   }
@@ -218,12 +225,12 @@ public class AdditionalPropertiesClass {
 
   @JsonProperty(JSON_PROPERTY_MAP_WITH_UNDECLARED_PROPERTIES_ANYTYPE2)
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
-  public void setMapWithUndeclaredPropertiesAnytype2(Object mapWithUndeclaredPropertiesAnytype2) {
+  public void setMapWithUndeclaredPropertiesAnytype2(@javax.annotation.Nullable Object mapWithUndeclaredPropertiesAnytype2) {
     this.mapWithUndeclaredPropertiesAnytype2 = mapWithUndeclaredPropertiesAnytype2;
   }
 
 
-  public AdditionalPropertiesClass mapWithUndeclaredPropertiesAnytype3(Map<String, Object> mapWithUndeclaredPropertiesAnytype3) {
+  public AdditionalPropertiesClass mapWithUndeclaredPropertiesAnytype3(@javax.annotation.Nullable Map<String, Object> mapWithUndeclaredPropertiesAnytype3) {
     this.mapWithUndeclaredPropertiesAnytype3 = mapWithUndeclaredPropertiesAnytype3;
     return this;
   }
@@ -251,12 +258,12 @@ public class AdditionalPropertiesClass {
 
   @JsonProperty(JSON_PROPERTY_MAP_WITH_UNDECLARED_PROPERTIES_ANYTYPE3)
   @JsonInclude(content = JsonInclude.Include.ALWAYS, value = JsonInclude.Include.USE_DEFAULTS)
-  public void setMapWithUndeclaredPropertiesAnytype3(Map<String, Object> mapWithUndeclaredPropertiesAnytype3) {
+  public void setMapWithUndeclaredPropertiesAnytype3(@javax.annotation.Nullable Map<String, Object> mapWithUndeclaredPropertiesAnytype3) {
     this.mapWithUndeclaredPropertiesAnytype3 = mapWithUndeclaredPropertiesAnytype3;
   }
 
 
-  public AdditionalPropertiesClass emptyMap(Object emptyMap) {
+  public AdditionalPropertiesClass emptyMap(@javax.annotation.Nullable Object emptyMap) {
     this.emptyMap = emptyMap;
     return this;
   }
@@ -276,12 +283,12 @@ public class AdditionalPropertiesClass {
 
   @JsonProperty(JSON_PROPERTY_EMPTY_MAP)
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
-  public void setEmptyMap(Object emptyMap) {
+  public void setEmptyMap(@javax.annotation.Nullable Object emptyMap) {
     this.emptyMap = emptyMap;
   }
 
 
-  public AdditionalPropertiesClass mapWithUndeclaredPropertiesString(Map<String, String> mapWithUndeclaredPropertiesString) {
+  public AdditionalPropertiesClass mapWithUndeclaredPropertiesString(@javax.annotation.Nullable Map<String, String> mapWithUndeclaredPropertiesString) {
     this.mapWithUndeclaredPropertiesString = mapWithUndeclaredPropertiesString;
     return this;
   }
@@ -309,7 +316,7 @@ public class AdditionalPropertiesClass {
 
   @JsonProperty(JSON_PROPERTY_MAP_WITH_UNDECLARED_PROPERTIES_STRING)
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
-  public void setMapWithUndeclaredPropertiesString(Map<String, String> mapWithUndeclaredPropertiesString) {
+  public void setMapWithUndeclaredPropertiesString(@javax.annotation.Nullable Map<String, String> mapWithUndeclaredPropertiesString) {
     this.mapWithUndeclaredPropertiesString = mapWithUndeclaredPropertiesString;
   }
 

samples/openapi3/client/petstore/java/jersey2-java8/src/main/java/org/openapitools/client/model/Animal.java

@@ -49,15 +49,17 @@ import org.openapitools.client.JSON;
 
 public class Animal {
   public static final String JSON_PROPERTY_CLASS_NAME = "className";
+  @javax.annotation.Nonnull
   private String className;
 
   public static final String JSON_PROPERTY_COLOR = "color";
+  @javax.annotation.Nullable
   private String color = "red";
 
   public Animal() { 
   }
 
-  public Animal className(String className) {
+  public Animal className(@javax.annotation.Nonnull String className) {
     this.className = className;
     return this;
   }
@@ -77,12 +79,12 @@ public class Animal {
 
   @JsonProperty(JSON_PROPERTY_CLASS_NAME)
   @JsonInclude(value = JsonInclude.Include.ALWAYS)
-  public void setClassName(String className) {
+  public void setClassName(@javax.annotation.Nonnull String className) {
     this.className = className;
   }
 
 
-  public Animal color(String color) {
+  public Animal color(@javax.annotation.Nullable String color) {
     this.color = color;
     return this;
   }
@@ -102,7 +104,7 @@ public class Animal {
 
   @JsonProperty(JSON_PROPERTY_COLOR)
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
-  public void setColor(String color) {
+  public void setColor(@javax.annotation.Nullable String color) {
     this.color = color;
   }
 

samples/openapi3/client/petstore/java/jersey2-java8/src/main/java/org/openapitools/client/model/Apple.java

@@ -37,15 +37,17 @@ import org.openapitools.client.JSON;
 @javax.annotation.Generated(value = "org.openapitools.codegen.languages.JavaClientCodegen", comments = "Generator version: 7.10.0-SNAPSHOT")
 public class Apple {
   public static final String JSON_PROPERTY_CULTIVAR = "cultivar";
+  @javax.annotation.Nullable
   private String cultivar;
 
   public static final String JSON_PROPERTY_ORIGIN = "origin";
+  @javax.annotation.Nullable
   private String origin;
 
   public Apple() { 
   }
 
-  public Apple cultivar(String cultivar) {
+  public Apple cultivar(@javax.annotation.Nullable String cultivar) {
     this.cultivar = cultivar;
     return this;
   }
@@ -65,12 +67,12 @@ public class Apple {
 
   @JsonProperty(JSON_PROPERTY_CULTIVAR)
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
-  public void setCultivar(String cultivar) {
+  public void setCultivar(@javax.annotation.Nullable String cultivar) {
     this.cultivar = cultivar;
   }
 
 
-  public Apple origin(String origin) {
+  public Apple origin(@javax.annotation.Nullable String origin) {
     this.origin = origin;
     return this;
   }
@@ -90,7 +92,7 @@ public class Apple {
 
   @JsonProperty(JSON_PROPERTY_ORIGIN)
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
-  public void setOrigin(String origin) {
+  public void setOrigin(@javax.annotation.Nullable String origin) {
     this.origin = origin;
   }
 

samples/openapi3/client/petstore/java/jersey2-java8/src/main/java/org/openapitools/client/model/AppleReq.java

@@ -37,15 +37,17 @@ import org.openapitools.client.JSON;
 @javax.annotation.Generated(value = "org.openapitools.codegen.languages.JavaClientCodegen", comments = "Generator version: 7.10.0-SNAPSHOT")
 public class AppleReq {
   public static final String JSON_PROPERTY_CULTIVAR = "cultivar";
+  @javax.annotation.Nonnull
   private String cultivar;
 
   public static final String JSON_PROPERTY_MEALY = "mealy";
+  @javax.annotation.Nullable
   private Boolean mealy;
 
   public AppleReq() { 
   }
 
-  public AppleReq cultivar(String cultivar) {
+  public AppleReq cultivar(@javax.annotation.Nonnull String cultivar) {
     this.cultivar = cultivar;
     return this;
   }
@@ -65,12 +67,12 @@ public class AppleReq {
 
   @JsonProperty(JSON_PROPERTY_CULTIVAR)
   @JsonInclude(value = JsonInclude.Include.ALWAYS)
-  public void setCultivar(String cultivar) {
+  public void setCultivar(@javax.annotation.Nonnull String cultivar) {
     this.cultivar = cultivar;
   }
 
 
-  public AppleReq mealy(Boolean mealy) {
+  public AppleReq mealy(@javax.annotation.Nullable Boolean mealy) {
     this.mealy = mealy;
     return this;
   }
@@ -90,7 +92,7 @@ public class AppleReq {
 
   @JsonProperty(JSON_PROPERTY_MEALY)
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
-  public void setMealy(Boolean mealy) {
+  public void setMealy(@javax.annotation.Nullable Boolean mealy) {
     this.mealy = mealy;
   }
 

samples/openapi3/client/petstore/java/jersey2-java8/src/main/java/org/openapitools/client/model/ArrayOfArrayOfNumberOnly.java

@@ -38,12 +38,13 @@ import org.openapitools.client.JSON;
 @javax.annotation.Generated(value = "org.openapitools.codegen.languages.JavaClientCodegen", comments = "Generator version: 7.10.0-SNAPSHOT")
 public class ArrayOfArrayOfNumberOnly {
   public static final String JSON_PROPERTY_ARRAY_ARRAY_NUMBER = "ArrayArrayNumber";
+  @javax.annotation.Nullable
   private List<List<BigDecimal>> arrayArrayNumber = new ArrayList<>();
 
   public ArrayOfArrayOfNumberOnly() { 
   }
 
-  public ArrayOfArrayOfNumberOnly arrayArrayNumber(List<List<BigDecimal>> arrayArrayNumber) {
+  public ArrayOfArrayOfNumberOnly arrayArrayNumber(@javax.annotation.Nullable List<List<BigDecimal>> arrayArrayNumber) {
     this.arrayArrayNumber = arrayArrayNumber;
     return this;
   }
@@ -71,7 +72,7 @@ public class ArrayOfArrayOfNumberOnly {
 
   @JsonProperty(JSON_PROPERTY_ARRAY_ARRAY_NUMBER)
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
-  public void setArrayArrayNumber(List<List<BigDecimal>> arrayArrayNumber) {
+  public void setArrayArrayNumber(@javax.annotation.Nullable List<List<BigDecimal>> arrayArrayNumber) {
     this.arrayArrayNumber = arrayArrayNumber;
   }
 

samples/openapi3/client/petstore/java/jersey2-java8/src/main/java/org/openapitools/client/model/ArrayOfNumberOnly.java

@@ -38,12 +38,13 @@ import org.openapitools.client.JSON;
 @javax.annotation.Generated(value = "org.openapitools.codegen.languages.JavaClientCodegen", comments = "Generator version: 7.10.0-SNAPSHOT")
 public class ArrayOfNumberOnly {
   public static final String JSON_PROPERTY_ARRAY_NUMBER = "ArrayNumber";
+  @javax.annotation.Nullable
   private List<BigDecimal> arrayNumber = new ArrayList<>();
 
   public ArrayOfNumberOnly() { 
   }
 
-  public ArrayOfNumberOnly arrayNumber(List<BigDecimal> arrayNumber) {
+  public ArrayOfNumberOnly arrayNumber(@javax.annotation.Nullable List<BigDecimal> arrayNumber) {
     this.arrayNumber = arrayNumber;
     return this;
   }
@@ -71,7 +72,7 @@ public class ArrayOfNumberOnly {
 
   @JsonProperty(JSON_PROPERTY_ARRAY_NUMBER)
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
-  public void setArrayNumber(List<BigDecimal> arrayNumber) {
+  public void setArrayNumber(@javax.annotation.Nullable List<BigDecimal> arrayNumber) {
     this.arrayNumber = arrayNumber;
   }
 

samples/openapi3/client/petstore/java/jersey2-java8/src/main/java/org/openapitools/client/model/ArrayTest.java

@@ -40,18 +40,21 @@ import org.openapitools.client.JSON;
 @javax.annotation.Generated(value = "org.openapitools.codegen.languages.JavaClientCodegen", comments = "Generator version: 7.10.0-SNAPSHOT")
 public class ArrayTest {
   public static final String JSON_PROPERTY_ARRAY_OF_STRING = "array_of_string";
+  @javax.annotation.Nullable
   private List<String> arrayOfString = new ArrayList<>();
 
   public static final String JSON_PROPERTY_ARRAY_ARRAY_OF_INTEGER = "array_array_of_integer";
+  @javax.annotation.Nullable
   private List<List<Long>> arrayArrayOfInteger = new ArrayList<>();
 
   public static final String JSON_PROPERTY_ARRAY_ARRAY_OF_MODEL = "array_array_of_model";
+  @javax.annotation.Nullable
   private List<List<ReadOnlyFirst>> arrayArrayOfModel = new ArrayList<>();
 
   public ArrayTest() { 
   }
 
-  public ArrayTest arrayOfString(List<String> arrayOfString) {
+  public ArrayTest arrayOfString(@javax.annotation.Nullable List<String> arrayOfString) {
     this.arrayOfString = arrayOfString;
     return this;
   }
@@ -79,12 +82,12 @@ public class ArrayTest {
 
   @JsonProperty(JSON_PROPERTY_ARRAY_OF_STRING)
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
-  public void setArrayOfString(List<String> arrayOfString) {
+  public void setArrayOfString(@javax.annotation.Nullable List<String> arrayOfString) {
     this.arrayOfString = arrayOfString;
   }
 
 
-  public ArrayTest arrayArrayOfInteger(List<List<Long>> arrayArrayOfInteger) {
+  public ArrayTest arrayArrayOfInteger(@javax.annotation.Nullable List<List<Long>> arrayArrayOfInteger) {
     this.arrayArrayOfInteger = arrayArrayOfInteger;
     return this;
   }
@@ -112,12 +115,12 @@ public class ArrayTest {
 
   @JsonProperty(JSON_PROPERTY_ARRAY_ARRAY_OF_INTEGER)
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
-  public void setArrayArrayOfInteger(List<List<Long>> arrayArrayOfInteger) {
+  public void setArrayArrayOfInteger(@javax.annotation.Nullable List<List<Long>> arrayArrayOfInteger) {
     this.arrayArrayOfInteger = arrayArrayOfInteger;
   }
 
 
-  public ArrayTest arrayArrayOfModel(List<List<ReadOnlyFirst>> arrayArrayOfModel) {
+  public ArrayTest arrayArrayOfModel(@javax.annotation.Nullable List<List<ReadOnlyFirst>> arrayArrayOfModel) {
     this.arrayArrayOfModel = arrayArrayOfModel;
     return this;
   }
@@ -145,7 +148,7 @@ public class ArrayTest {
 
   @JsonProperty(JSON_PROPERTY_ARRAY_ARRAY_OF_MODEL)
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
-  public void setArrayArrayOfModel(List<List<ReadOnlyFirst>> arrayArrayOfModel) {
+  public void setArrayArrayOfModel(@javax.annotation.Nullable List<List<ReadOnlyFirst>> arrayArrayOfModel) {
     this.arrayArrayOfModel = arrayArrayOfModel;
   }
 

samples/openapi3/client/petstore/java/jersey2-java8/src/main/java/org/openapitools/client/model/Banana.java

@@ -37,12 +37,13 @@ import org.openapitools.client.JSON;
 @javax.annotation.Generated(value = "org.openapitools.codegen.languages.JavaClientCodegen", comments = "Generator version: 7.10.0-SNAPSHOT")
 public class Banana {
   public static final String JSON_PROPERTY_LENGTH_CM = "lengthCm";
+  @javax.annotation.Nullable
   private BigDecimal lengthCm;
 
   public Banana() { 
   }
 
-  public Banana lengthCm(BigDecimal lengthCm) {
+  public Banana lengthCm(@javax.annotation.Nullable BigDecimal lengthCm) {
     this.lengthCm = lengthCm;
     return this;
   }
@@ -62,7 +63,7 @@ public class Banana {
 
   @JsonProperty(JSON_PROPERTY_LENGTH_CM)
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
-  public void setLengthCm(BigDecimal lengthCm) {
+  public void setLengthCm(@javax.annotation.Nullable BigDecimal lengthCm) {
     this.lengthCm = lengthCm;
   }
 

samples/openapi3/client/petstore/java/jersey2-java8/src/main/java/org/openapitools/client/model/BananaReq.java

@@ -38,15 +38,17 @@ import org.openapitools.client.JSON;
 @javax.annotation.Generated(value = "org.openapitools.codegen.languages.JavaClientCodegen", comments = "Generator version: 7.10.0-SNAPSHOT")
 public class BananaReq {
   public static final String JSON_PROPERTY_LENGTH_CM = "lengthCm";
+  @javax.annotation.Nonnull
   private BigDecimal lengthCm;
 
   public static final String JSON_PROPERTY_SWEET = "sweet";
+  @javax.annotation.Nullable
   private Boolean sweet;
 
   public BananaReq() { 
   }
 
-  public BananaReq lengthCm(BigDecimal lengthCm) {
+  public BananaReq lengthCm(@javax.annotation.Nonnull BigDecimal lengthCm) {
     this.lengthCm = lengthCm;
     return this;
   }
@@ -66,12 +68,12 @@ public class BananaReq {
 
   @JsonProperty(JSON_PROPERTY_LENGTH_CM)
   @JsonInclude(value = JsonInclude.Include.ALWAYS)
-  public void setLengthCm(BigDecimal lengthCm) {
+  public void setLengthCm(@javax.annotation.Nonnull BigDecimal lengthCm) {
     this.lengthCm = lengthCm;
   }
 
 
-  public BananaReq sweet(Boolean sweet) {
+  public BananaReq sweet(@javax.annotation.Nullable Boolean sweet) {
     this.sweet = sweet;
     return this;
   }
@@ -91,7 +93,7 @@ public class BananaReq {
 
   @JsonProperty(JSON_PROPERTY_SWEET)
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
-  public void setSweet(Boolean sweet) {
+  public void setSweet(@javax.annotation.Nullable Boolean sweet) {
     this.sweet = sweet;
   }
 

samples/openapi3/client/petstore/java/jersey2-java8/src/main/java/org/openapitools/client/model/BasquePig.java

@@ -35,12 +35,13 @@ import org.openapitools.client.JSON;
 @javax.annotation.Generated(value = "org.openapitools.codegen.languages.JavaClientCodegen", comments = "Generator version: 7.10.0-SNAPSHOT")
 public class BasquePig {
   public static final String JSON_PROPERTY_CLASS_NAME = "className";
+  @javax.annotation.Nonnull
   private String className;
 
   public BasquePig() { 
   }
 
-  public BasquePig className(String className) {
+  public BasquePig className(@javax.annotation.Nonnull String className) {
     this.className = className;
     return this;
   }
@@ -60,7 +61,7 @@ public class BasquePig {
 
   @JsonProperty(JSON_PROPERTY_CLASS_NAME)
   @JsonInclude(value = JsonInclude.Include.ALWAYS)
-  public void setClassName(String className) {
+  public void setClassName(@javax.annotation.Nonnull String className) {
     this.className = className;
   }
 

samples/openapi3/client/petstore/java/jersey2-java8/src/main/java/org/openapitools/client/model/Capitalization.java

@@ -40,27 +40,33 @@ import org.openapitools.client.JSON;
 @javax.annotation.Generated(value = "org.openapitools.codegen.languages.JavaClientCodegen", comments = "Generator version: 7.10.0-SNAPSHOT")
 public class Capitalization {
   public static final String JSON_PROPERTY_SMALL_CAMEL = "smallCamel";
+  @javax.annotation.Nullable
   private String smallCamel;
 
   public static final String JSON_PROPERTY_CAPITAL_CAMEL = "CapitalCamel";
+  @javax.annotation.Nullable
   private String capitalCamel;
 
   public static final String JSON_PROPERTY_SMALL_SNAKE = "small_Snake";
+  @javax.annotation.Nullable
   private String smallSnake;
 
   public static final String JSON_PROPERTY_CAPITAL_SNAKE = "Capital_Snake";
+  @javax.annotation.Nullable
   private String capitalSnake;
 
   public static final String JSON_PROPERTY_SC_A_E_T_H_FLOW_POINTS = "SCA_ETH_Flow_Points";
+  @javax.annotation.Nullable
   private String scAETHFlowPoints;
 
   public static final String JSON_PROPERTY_A_T_T_N_A_M_E = "ATT_NAME";
+  @javax.annotation.Nullable
   private String ATT_NAME;
 
   public Capitalization() { 
   }
 
-  public Capitalization smallCamel(String smallCamel) {
+  public Capitalization smallCamel(@javax.annotation.Nullable String smallCamel) {
     this.smallCamel = smallCamel;
     return this;
   }
@@ -80,12 +86,12 @@ public class Capitalization {
 
   @JsonProperty(JSON_PROPERTY_SMALL_CAMEL)
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
-  public void setSmallCamel(String smallCamel) {
+  public void setSmallCamel(@javax.annotation.Nullable String smallCamel) {
     this.smallCamel = smallCamel;
   }
 
 
-  public Capitalization capitalCamel(String capitalCamel) {
+  public Capitalization capitalCamel(@javax.annotation.Nullable String capitalCamel) {
     this.capitalCamel = capitalCamel;
     return this;
   }
@@ -105,12 +111,12 @@ public class Capitalization {
 
   @JsonProperty(JSON_PROPERTY_CAPITAL_CAMEL)
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
-  public void setCapitalCamel(String capitalCamel) {
+  public void setCapitalCamel(@javax.annotation.Nullable String capitalCamel) {
     this.capitalCamel = capitalCamel;
   }
 
 
-  public Capitalization smallSnake(String smallSnake) {
+  public Capitalization smallSnake(@javax.annotation.Nullable String smallSnake) {
     this.smallSnake = smallSnake;
     return this;
   }
@@ -130,12 +136,12 @@ public class Capitalization {
 
   @JsonProperty(JSON_PROPERTY_SMALL_SNAKE)
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
-  public void setSmallSnake(String smallSnake) {
+  public void setSmallSnake(@javax.annotation.Nullable String smallSnake) {
     this.smallSnake = smallSnake;
   }
 
 
-  public Capitalization capitalSnake(String capitalSnake) {
+  public Capitalization capitalSnake(@javax.annotation.Nullable String capitalSnake) {
     this.capitalSnake = capitalSnake;
     return this;
   }
@@ -155,12 +161,12 @@ public class Capitalization {
 
   @JsonProperty(JSON_PROPERTY_CAPITAL_SNAKE)
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
-  public void setCapitalSnake(String capitalSnake) {
+  public void setCapitalSnake(@javax.annotation.Nullable String capitalSnake) {
     this.capitalSnake = capitalSnake;
   }
 
 
-  public Capitalization scAETHFlowPoints(String scAETHFlowPoints) {
+  public Capitalization scAETHFlowPoints(@javax.annotation.Nullable String scAETHFlowPoints) {
     this.scAETHFlowPoints = scAETHFlowPoints;
     return this;
   }
@@ -180,12 +186,12 @@ public class Capitalization {
 
   @JsonProperty(JSON_PROPERTY_SC_A_E_T_H_FLOW_POINTS)
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
-  public void setScAETHFlowPoints(String scAETHFlowPoints) {
+  public void setScAETHFlowPoints(@javax.annotation.Nullable String scAETHFlowPoints) {
     this.scAETHFlowPoints = scAETHFlowPoints;
   }
 
 
-  public Capitalization ATT_NAME(String ATT_NAME) {
+  public Capitalization ATT_NAME(@javax.annotation.Nullable String ATT_NAME) {
     this.ATT_NAME = ATT_NAME;
     return this;
   }
@@ -205,7 +211,7 @@ public class Capitalization {
 
   @JsonProperty(JSON_PROPERTY_A_T_T_N_A_M_E)
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
-  public void setATTNAME(String ATT_NAME) {
+  public void setATTNAME(@javax.annotation.Nullable String ATT_NAME) {
     this.ATT_NAME = ATT_NAME;
   }
 

samples/openapi3/client/petstore/java/jersey2-java8/src/main/java/org/openapitools/client/model/Cat.java

@@ -50,12 +50,13 @@ import org.openapitools.client.JSON;
 
 public class Cat extends Animal {
   public static final String JSON_PROPERTY_DECLAWED = "declawed";
+  @javax.annotation.Nullable
   private Boolean declawed;
 
   public Cat() { 
   }
 
-  public Cat declawed(Boolean declawed) {
+  public Cat declawed(@javax.annotation.Nullable Boolean declawed) {
     this.declawed = declawed;
     return this;
   }
@@ -75,7 +76,7 @@ public class Cat extends Animal {
 
   @JsonProperty(JSON_PROPERTY_DECLAWED)
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
-  public void setDeclawed(Boolean declawed) {
+  public void setDeclawed(@javax.annotation.Nullable Boolean declawed) {
     this.declawed = declawed;
   }
 

samples/openapi3/client/petstore/java/jersey2-java8/src/main/java/org/openapitools/client/model/Category.java

@@ -36,15 +36,17 @@ import org.openapitools.client.JSON;
 @javax.annotation.Generated(value = "org.openapitools.codegen.languages.JavaClientCodegen", comments = "Generator version: 7.10.0-SNAPSHOT")
 public class Category {
   public static final String JSON_PROPERTY_ID = "id";
+  @javax.annotation.Nullable
   private Long id;
 
   public static final String JSON_PROPERTY_NAME = "name";
+  @javax.annotation.Nonnull
   private String name = "default-name";
 
   public Category() { 
   }
 
-  public Category id(Long id) {
+  public Category id(@javax.annotation.Nullable Long id) {
     this.id = id;
     return this;
   }
@@ -64,12 +66,12 @@ public class Category {
 
   @JsonProperty(JSON_PROPERTY_ID)
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
-  public void setId(Long id) {
+  public void setId(@javax.annotation.Nullable Long id) {
     this.id = id;
   }
 
 
-  public Category name(String name) {
+  public Category name(@javax.annotation.Nonnull String name) {
     this.name = name;
     return this;
   }
@@ -89,7 +91,7 @@ public class Category {
 
   @JsonProperty(JSON_PROPERTY_NAME)
   @JsonInclude(value = JsonInclude.Include.ALWAYS)
-  public void setName(String name) {
+  public void setName(@javax.annotation.Nonnull String name) {
     this.name = name;
   }
 

samples/openapi3/client/petstore/java/jersey2-java8/src/main/java/org/openapitools/client/model/ChildCat.java

@@ -52,15 +52,17 @@ import org.openapitools.client.JSON;
 
 public class ChildCat extends ParentPet {
   public static final String JSON_PROPERTY_NAME = "name";
+  @javax.annotation.Nullable
   private String name;
 
   public static final String JSON_PROPERTY_PET_TYPE = "pet_type";
+  @javax.annotation.Nullable
   private String petType = "ChildCat";
 
   public ChildCat() { 
   }
 
-  public ChildCat name(String name) {
+  public ChildCat name(@javax.annotation.Nullable String name) {
     this.name = name;
     return this;
   }
@@ -80,7 +82,7 @@ public class ChildCat extends ParentPet {
 
   @JsonProperty(JSON_PROPERTY_NAME)
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
-  public void setName(String name) {
+  public void setName(@javax.annotation.Nullable String name) {
     this.name = name;
   }
 
@@ -89,7 +91,7 @@ public class ChildCat extends ParentPet {
     "ChildCat"
   ));
 
-  public ChildCat petType(String petType) {
+  public ChildCat petType(@javax.annotation.Nullable String petType) {
     if (!PET_TYPE_VALUES.contains(petType)) {
       throw new IllegalArgumentException(petType + " is invalid. Possible values for petType: " + String.join(", ", PET_TYPE_VALUES));
     }
@@ -113,7 +115,7 @@ public class ChildCat extends ParentPet {
 
   @JsonProperty(JSON_PROPERTY_PET_TYPE)
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
-  public void setPetType(String petType) {
+  public void setPetType(@javax.annotation.Nullable String petType) {
     if (!PET_TYPE_VALUES.contains(petType)) {
       throw new IllegalArgumentException(petType + " is invalid. Possible values for petType: " + String.join(", ", PET_TYPE_VALUES));
     }

samples/openapi3/client/petstore/java/jersey2-java8/src/main/java/org/openapitools/client/model/ClassModel.java

@@ -35,12 +35,13 @@ import org.openapitools.client.JSON;
 @javax.annotation.Generated(value = "org.openapitools.codegen.languages.JavaClientCodegen", comments = "Generator version: 7.10.0-SNAPSHOT")
 public class ClassModel {
   public static final String JSON_PROPERTY_PROPERTY_CLASS = "_class";
+  @javax.annotation.Nullable
   private String propertyClass;
 
   public ClassModel() { 
   }
 
-  public ClassModel propertyClass(String propertyClass) {
+  public ClassModel propertyClass(@javax.annotation.Nullable String propertyClass) {
     this.propertyClass = propertyClass;
     return this;
   }
@@ -60,7 +61,7 @@ public class ClassModel {
 
   @JsonProperty(JSON_PROPERTY_PROPERTY_CLASS)
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
-  public void setPropertyClass(String propertyClass) {
+  public void setPropertyClass(@javax.annotation.Nullable String propertyClass) {
     this.propertyClass = propertyClass;
   }
 

samples/openapi3/client/petstore/java/jersey2-java8/src/main/java/org/openapitools/client/model/Client.java

@@ -35,12 +35,13 @@ import org.openapitools.client.JSON;
 @javax.annotation.Generated(value = "org.openapitools.codegen.languages.JavaClientCodegen", comments = "Generator version: 7.10.0-SNAPSHOT")
 public class Client {
   public static final String JSON_PROPERTY_CLIENT = "client";
+  @javax.annotation.Nullable
   private String client;
 
   public Client() { 
   }
 
-  public Client client(String client) {
+  public Client client(@javax.annotation.Nullable String client) {
     this.client = client;
     return this;
   }
@@ -60,7 +61,7 @@ public class Client {
 
   @JsonProperty(JSON_PROPERTY_CLIENT)
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
-  public void setClient(String client) {
+  public void setClient(@javax.annotation.Nullable String client) {
     this.client = client;
   }
 

samples/openapi3/client/petstore/java/jersey2-java8/src/main/java/org/openapitools/client/model/ComplexQuadrilateral.java

@@ -40,15 +40,17 @@ import org.openapitools.client.JSON;
 @javax.annotation.Generated(value = "org.openapitools.codegen.languages.JavaClientCodegen", comments = "Generator version: 7.10.0-SNAPSHOT")
 public class ComplexQuadrilateral {
   public static final String JSON_PROPERTY_SHAPE_TYPE = "shapeType";
+  @javax.annotation.Nonnull
   private String shapeType;
 
   public static final String JSON_PROPERTY_QUADRILATERAL_TYPE = "quadrilateralType";
+  @javax.annotation.Nonnull
   private String quadrilateralType;
 
   public ComplexQuadrilateral() { 
   }
 
-  public ComplexQuadrilateral shapeType(String shapeType) {
+  public ComplexQuadrilateral shapeType(@javax.annotation.Nonnull String shapeType) {
     this.shapeType = shapeType;
     return this;
   }
@@ -68,12 +70,12 @@ public class ComplexQuadrilateral {
 
   @JsonProperty(JSON_PROPERTY_SHAPE_TYPE)
   @JsonInclude(value = JsonInclude.Include.ALWAYS)
-  public void setShapeType(String shapeType) {
+  public void setShapeType(@javax.annotation.Nonnull String shapeType) {
     this.shapeType = shapeType;
   }
 
 
-  public ComplexQuadrilateral quadrilateralType(String quadrilateralType) {
+  public ComplexQuadrilateral quadrilateralType(@javax.annotation.Nonnull String quadrilateralType) {
     this.quadrilateralType = quadrilateralType;
     return this;
   }
@@ -93,7 +95,7 @@ public class ComplexQuadrilateral {
 
   @JsonProperty(JSON_PROPERTY_QUADRILATERAL_TYPE)
   @JsonInclude(value = JsonInclude.Include.ALWAYS)
-  public void setQuadrilateralType(String quadrilateralType) {
+  public void setQuadrilateralType(@javax.annotation.Nonnull String quadrilateralType) {
     this.quadrilateralType = quadrilateralType;
   }
 

samples/openapi3/client/petstore/java/jersey2-java8/src/main/java/org/openapitools/client/model/DanishPig.java

@@ -35,12 +35,13 @@ import org.openapitools.client.JSON;
 @javax.annotation.Generated(value = "org.openapitools.codegen.languages.JavaClientCodegen", comments = "Generator version: 7.10.0-SNAPSHOT")
 public class DanishPig {
   public static final String JSON_PROPERTY_CLASS_NAME = "className";
+  @javax.annotation.Nonnull
   private String className;
 
   public DanishPig() { 
   }
 
-  public DanishPig className(String className) {
+  public DanishPig className(@javax.annotation.Nonnull String className) {
     this.className = className;
     return this;
   }
@@ -60,7 +61,7 @@ public class DanishPig {
 
   @JsonProperty(JSON_PROPERTY_CLASS_NAME)
   @JsonInclude(value = JsonInclude.Include.ALWAYS)
-  public void setClassName(String className) {
+  public void setClassName(@javax.annotation.Nonnull String className) {
     this.className = className;
   }
 

samples/openapi3/client/petstore/java/jersey2-java8/src/main/java/org/openapitools/client/model/DeprecatedObject.java

@@ -37,12 +37,13 @@ import org.openapitools.client.JSON;
 @javax.annotation.Generated(value = "org.openapitools.codegen.languages.JavaClientCodegen", comments = "Generator version: 7.10.0-SNAPSHOT")
 public class DeprecatedObject {
   public static final String JSON_PROPERTY_NAME = "name";
+  @javax.annotation.Nullable
   private String name;
 
   public DeprecatedObject() { 
   }
 
-  public DeprecatedObject name(String name) {
+  public DeprecatedObject name(@javax.annotation.Nullable String name) {
     this.name = name;
     return this;
   }
@@ -62,7 +63,7 @@ public class DeprecatedObject {
 
   @JsonProperty(JSON_PROPERTY_NAME)
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
-  public void setName(String name) {
+  public void setName(@javax.annotation.Nullable String name) {
     this.name = name;
   }
 

samples/openapi3/client/petstore/java/jersey2-java8/src/main/java/org/openapitools/client/model/Dog.java

@@ -49,12 +49,13 @@ import org.openapitools.client.JSON;
 
 public class Dog extends Animal {
   public static final String JSON_PROPERTY_BREED = "breed";
+  @javax.annotation.Nullable
   private String breed;
 
   public Dog() { 
   }
 
-  public Dog breed(String breed) {
+  public Dog breed(@javax.annotation.Nullable String breed) {
     this.breed = breed;
     return this;
   }
@@ -74,7 +75,7 @@ public class Dog extends Animal {
 
   @JsonProperty(JSON_PROPERTY_BREED)
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
-  public void setBreed(String breed) {
+  public void setBreed(@javax.annotation.Nullable String breed) {
     this.breed = breed;
   }
 

samples/openapi3/client/petstore/java/jersey2-java8/src/main/java/org/openapitools/client/model/Drawing.java

@@ -52,6 +52,7 @@ import org.openapitools.client.JSON;
 @javax.annotation.Generated(value = "org.openapitools.codegen.languages.JavaClientCodegen", comments = "Generator version: 7.10.0-SNAPSHOT")
 public class Drawing {
   public static final String JSON_PROPERTY_MAIN_SHAPE = "mainShape";
+  @javax.annotation.Nullable
   private Shape mainShape;
 
   public static final String JSON_PROPERTY_SHAPE_OR_NULL = "shapeOrNull";
@@ -61,12 +62,13 @@ public class Drawing {
   private JsonNullable<NullableShape> nullableShape = JsonNullable.<NullableShape>undefined();
 
   public static final String JSON_PROPERTY_SHAPES = "shapes";
+  @javax.annotation.Nullable
   private List<Shape> shapes = new ArrayList<>();
 
   public Drawing() { 
   }
 
-  public Drawing mainShape(Shape mainShape) {
+  public Drawing mainShape(@javax.annotation.Nullable Shape mainShape) {
     this.mainShape = mainShape;
     return this;
   }
@@ -86,12 +88,12 @@ public class Drawing {
 
   @JsonProperty(JSON_PROPERTY_MAIN_SHAPE)
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
-  public void setMainShape(Shape mainShape) {
+  public void setMainShape(@javax.annotation.Nullable Shape mainShape) {
     this.mainShape = mainShape;
   }
 
 
-  public Drawing shapeOrNull(ShapeOrNull shapeOrNull) {
+  public Drawing shapeOrNull(@javax.annotation.Nullable ShapeOrNull shapeOrNull) {
     this.shapeOrNull = JsonNullable.<ShapeOrNull>of(shapeOrNull);
     return this;
   }
@@ -119,12 +121,12 @@ public class Drawing {
     this.shapeOrNull = shapeOrNull;
   }
 
-  public void setShapeOrNull(ShapeOrNull shapeOrNull) {
+  public void setShapeOrNull(@javax.annotation.Nullable ShapeOrNull shapeOrNull) {
     this.shapeOrNull = JsonNullable.<ShapeOrNull>of(shapeOrNull);
   }
 
 
-  public Drawing nullableShape(NullableShape nullableShape) {
+  public Drawing nullableShape(@javax.annotation.Nullable NullableShape nullableShape) {
     this.nullableShape = JsonNullable.<NullableShape>of(nullableShape);
     return this;
   }
@@ -152,12 +154,12 @@ public class Drawing {
     this.nullableShape = nullableShape;
   }
 
-  public void setNullableShape(NullableShape nullableShape) {
+  public void setNullableShape(@javax.annotation.Nullable NullableShape nullableShape) {
     this.nullableShape = JsonNullable.<NullableShape>of(nullableShape);
   }
 
 
-  public Drawing shapes(List<Shape> shapes) {
+  public Drawing shapes(@javax.annotation.Nullable List<Shape> shapes) {
     this.shapes = shapes;
     return this;
   }
@@ -185,7 +187,7 @@ public class Drawing {
 
   @JsonProperty(JSON_PROPERTY_SHAPES)
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
-  public void setShapes(List<Shape> shapes) {
+  public void setShapes(@javax.annotation.Nullable List<Shape> shapes) {
     this.shapes = shapes;
   }
 

samples/openapi3/client/petstore/java/jersey2-java8/src/main/java/org/openapitools/client/model/EnumArrays.java

@@ -73,6 +73,7 @@ public class EnumArrays {
   }
 
   public static final String JSON_PROPERTY_JUST_SYMBOL = "just_symbol";
+  @javax.annotation.Nullable
   private JustSymbolEnum justSymbol;
 
   /**
@@ -111,12 +112,13 @@ public class EnumArrays {
   }
 
   public static final String JSON_PROPERTY_ARRAY_ENUM = "array_enum";
+  @javax.annotation.Nullable
   private List<ArrayEnumEnum> arrayEnum = new ArrayList<>();
 
   public EnumArrays() { 
   }
 
-  public EnumArrays justSymbol(JustSymbolEnum justSymbol) {
+  public EnumArrays justSymbol(@javax.annotation.Nullable JustSymbolEnum justSymbol) {
     this.justSymbol = justSymbol;
     return this;
   }
@@ -136,12 +138,12 @@ public class EnumArrays {
 
   @JsonProperty(JSON_PROPERTY_JUST_SYMBOL)
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
-  public void setJustSymbol(JustSymbolEnum justSymbol) {
+  public void setJustSymbol(@javax.annotation.Nullable JustSymbolEnum justSymbol) {
     this.justSymbol = justSymbol;
   }
 
 
-  public EnumArrays arrayEnum(List<ArrayEnumEnum> arrayEnum) {
+  public EnumArrays arrayEnum(@javax.annotation.Nullable List<ArrayEnumEnum> arrayEnum) {
     this.arrayEnum = arrayEnum;
     return this;
   }
@@ -169,7 +171,7 @@ public class EnumArrays {
 
   @JsonProperty(JSON_PROPERTY_ARRAY_ENUM)
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
-  public void setArrayEnum(List<ArrayEnumEnum> arrayEnum) {
+  public void setArrayEnum(@javax.annotation.Nullable List<ArrayEnumEnum> arrayEnum) {
     this.arrayEnum = arrayEnum;
   }
 

samples/openapi3/client/petstore/java/jersey2-java8/src/main/java/org/openapitools/client/model/EnumTest.java

@@ -89,6 +89,7 @@ public class EnumTest {
   }
 
   public static final String JSON_PROPERTY_ENUM_STRING = "enum_string";
+  @javax.annotation.Nullable
   private EnumStringEnum enumString;
 
   /**
@@ -129,6 +130,7 @@ public class EnumTest {
   }
 
   public static final String JSON_PROPERTY_ENUM_STRING_REQUIRED = "enum_string_required";
+  @javax.annotation.Nonnull
   private EnumStringRequiredEnum enumStringRequired;
 
   /**
@@ -167,6 +169,7 @@ public class EnumTest {
   }
 
   public static final String JSON_PROPERTY_ENUM_INTEGER = "enum_integer";
+  @javax.annotation.Nullable
   private EnumIntegerEnum enumInteger;
 
   /**
@@ -205,6 +208,7 @@ public class EnumTest {
   }
 
   public static final String JSON_PROPERTY_ENUM_INTEGER_ONLY = "enum_integer_only";
+  @javax.annotation.Nullable
   private EnumIntegerOnlyEnum enumIntegerOnly;
 
   /**
@@ -243,24 +247,28 @@ public class EnumTest {
   }
 
   public static final String JSON_PROPERTY_ENUM_NUMBER = "enum_number";
+  @javax.annotation.Nullable
   private EnumNumberEnum enumNumber;
 
   public static final String JSON_PROPERTY_OUTER_ENUM = "outerEnum";
   private JsonNullable<OuterEnum> outerEnum = JsonNullable.<OuterEnum>undefined();
 
   public static final String JSON_PROPERTY_OUTER_ENUM_INTEGER = "outerEnumInteger";
+  @javax.annotation.Nullable
   private OuterEnumInteger outerEnumInteger;
 
   public static final String JSON_PROPERTY_OUTER_ENUM_DEFAULT_VALUE = "outerEnumDefaultValue";
+  @javax.annotation.Nullable
   private OuterEnumDefaultValue outerEnumDefaultValue = OuterEnumDefaultValue.PLACED;
 
   public static final String JSON_PROPERTY_OUTER_ENUM_INTEGER_DEFAULT_VALUE = "outerEnumIntegerDefaultValue";
+  @javax.annotation.Nullable
   private OuterEnumIntegerDefaultValue outerEnumIntegerDefaultValue = OuterEnumIntegerDefaultValue.NUMBER_0;
 
   public EnumTest() { 
   }
 
-  public EnumTest enumString(EnumStringEnum enumString) {
+  public EnumTest enumString(@javax.annotation.Nullable EnumStringEnum enumString) {
     this.enumString = enumString;
     return this;
   }
@@ -280,12 +288,12 @@ public class EnumTest {
 
   @JsonProperty(JSON_PROPERTY_ENUM_STRING)
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
-  public void setEnumString(EnumStringEnum enumString) {
+  public void setEnumString(@javax.annotation.Nullable EnumStringEnum enumString) {
     this.enumString = enumString;
   }
 
 
-  public EnumTest enumStringRequired(EnumStringRequiredEnum enumStringRequired) {
+  public EnumTest enumStringRequired(@javax.annotation.Nonnull EnumStringRequiredEnum enumStringRequired) {
     this.enumStringRequired = enumStringRequired;
     return this;
   }
@@ -305,12 +313,12 @@ public class EnumTest {
 
   @JsonProperty(JSON_PROPERTY_ENUM_STRING_REQUIRED)
   @JsonInclude(value = JsonInclude.Include.ALWAYS)
-  public void setEnumStringRequired(EnumStringRequiredEnum enumStringRequired) {
+  public void setEnumStringRequired(@javax.annotation.Nonnull EnumStringRequiredEnum enumStringRequired) {
     this.enumStringRequired = enumStringRequired;
   }
 
 
-  public EnumTest enumInteger(EnumIntegerEnum enumInteger) {
+  public EnumTest enumInteger(@javax.annotation.Nullable EnumIntegerEnum enumInteger) {
     this.enumInteger = enumInteger;
     return this;
   }
@@ -330,12 +338,12 @@ public class EnumTest {
 
   @JsonProperty(JSON_PROPERTY_ENUM_INTEGER)
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
-  public void setEnumInteger(EnumIntegerEnum enumInteger) {
+  public void setEnumInteger(@javax.annotation.Nullable EnumIntegerEnum enumInteger) {
     this.enumInteger = enumInteger;
   }
 
 
-  public EnumTest enumIntegerOnly(EnumIntegerOnlyEnum enumIntegerOnly) {
+  public EnumTest enumIntegerOnly(@javax.annotation.Nullable EnumIntegerOnlyEnum enumIntegerOnly) {
     this.enumIntegerOnly = enumIntegerOnly;
     return this;
   }
@@ -355,12 +363,12 @@ public class EnumTest {
 
   @JsonProperty(JSON_PROPERTY_ENUM_INTEGER_ONLY)
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
-  public void setEnumIntegerOnly(EnumIntegerOnlyEnum enumIntegerOnly) {
+  public void setEnumIntegerOnly(@javax.annotation.Nullable EnumIntegerOnlyEnum enumIntegerOnly) {
     this.enumIntegerOnly = enumIntegerOnly;
   }
 
 
-  public EnumTest enumNumber(EnumNumberEnum enumNumber) {
+  public EnumTest enumNumber(@javax.annotation.Nullable EnumNumberEnum enumNumber) {
     this.enumNumber = enumNumber;
     return this;
   }
@@ -380,12 +388,12 @@ public class EnumTest {
 
   @JsonProperty(JSON_PROPERTY_ENUM_NUMBER)
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
-  public void setEnumNumber(EnumNumberEnum enumNumber) {
+  public void setEnumNumber(@javax.annotation.Nullable EnumNumberEnum enumNumber) {
     this.enumNumber = enumNumber;
   }
 
 
-  public EnumTest outerEnum(OuterEnum outerEnum) {
+  public EnumTest outerEnum(@javax.annotation.Nullable OuterEnum outerEnum) {
     this.outerEnum = JsonNullable.<OuterEnum>of(outerEnum);
     return this;
   }
@@ -413,12 +421,12 @@ public class EnumTest {
     this.outerEnum = outerEnum;
   }
 
-  public void setOuterEnum(OuterEnum outerEnum) {
+  public void setOuterEnum(@javax.annotation.Nullable OuterEnum outerEnum) {
     this.outerEnum = JsonNullable.<OuterEnum>of(outerEnum);
   }
 
 
-  public EnumTest outerEnumInteger(OuterEnumInteger outerEnumInteger) {
+  public EnumTest outerEnumInteger(@javax.annotation.Nullable OuterEnumInteger outerEnumInteger) {
     this.outerEnumInteger = outerEnumInteger;
     return this;
   }
@@ -438,12 +446,12 @@ public class EnumTest {
 
   @JsonProperty(JSON_PROPERTY_OUTER_ENUM_INTEGER)
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
-  public void setOuterEnumInteger(OuterEnumInteger outerEnumInteger) {
+  public void setOuterEnumInteger(@javax.annotation.Nullable OuterEnumInteger outerEnumInteger) {
     this.outerEnumInteger = outerEnumInteger;
   }
 
 
-  public EnumTest outerEnumDefaultValue(OuterEnumDefaultValue outerEnumDefaultValue) {
+  public EnumTest outerEnumDefaultValue(@javax.annotation.Nullable OuterEnumDefaultValue outerEnumDefaultValue) {
     this.outerEnumDefaultValue = outerEnumDefaultValue;
     return this;
   }
@@ -463,12 +471,12 @@ public class EnumTest {
 
   @JsonProperty(JSON_PROPERTY_OUTER_ENUM_DEFAULT_VALUE)
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
-  public void setOuterEnumDefaultValue(OuterEnumDefaultValue outerEnumDefaultValue) {
+  public void setOuterEnumDefaultValue(@javax.annotation.Nullable OuterEnumDefaultValue outerEnumDefaultValue) {
     this.outerEnumDefaultValue = outerEnumDefaultValue;
   }
 
 
-  public EnumTest outerEnumIntegerDefaultValue(OuterEnumIntegerDefaultValue outerEnumIntegerDefaultValue) {
+  public EnumTest outerEnumIntegerDefaultValue(@javax.annotation.Nullable OuterEnumIntegerDefaultValue outerEnumIntegerDefaultValue) {
     this.outerEnumIntegerDefaultValue = outerEnumIntegerDefaultValue;
     return this;
   }
@@ -488,7 +496,7 @@ public class EnumTest {
 
   @JsonProperty(JSON_PROPERTY_OUTER_ENUM_INTEGER_DEFAULT_VALUE)
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
-  public void setOuterEnumIntegerDefaultValue(OuterEnumIntegerDefaultValue outerEnumIntegerDefaultValue) {
+  public void setOuterEnumIntegerDefaultValue(@javax.annotation.Nullable OuterEnumIntegerDefaultValue outerEnumIntegerDefaultValue) {
     this.outerEnumIntegerDefaultValue = outerEnumIntegerDefaultValue;
   }
 

samples/openapi3/client/petstore/java/jersey2-java8/src/main/java/org/openapitools/client/model/EquilateralTriangle.java

@@ -40,15 +40,17 @@ import org.openapitools.client.JSON;
 @javax.annotation.Generated(value = "org.openapitools.codegen.languages.JavaClientCodegen", comments = "Generator version: 7.10.0-SNAPSHOT")
 public class EquilateralTriangle {
   public static final String JSON_PROPERTY_SHAPE_TYPE = "shapeType";
+  @javax.annotation.Nonnull
   private String shapeType;
 
   public static final String JSON_PROPERTY_TRIANGLE_TYPE = "triangleType";
+  @javax.annotation.Nonnull
   private String triangleType;
 
   public EquilateralTriangle() { 
   }
 
-  public EquilateralTriangle shapeType(String shapeType) {
+  public EquilateralTriangle shapeType(@javax.annotation.Nonnull String shapeType) {
     this.shapeType = shapeType;
     return this;
   }
@@ -68,12 +70,12 @@ public class EquilateralTriangle {
 
   @JsonProperty(JSON_PROPERTY_SHAPE_TYPE)
   @JsonInclude(value = JsonInclude.Include.ALWAYS)
-  public void setShapeType(String shapeType) {
+  public void setShapeType(@javax.annotation.Nonnull String shapeType) {
     this.shapeType = shapeType;
   }
 
 
-  public EquilateralTriangle triangleType(String triangleType) {
+  public EquilateralTriangle triangleType(@javax.annotation.Nonnull String triangleType) {
     this.triangleType = triangleType;
     return this;
   }
@@ -93,7 +95,7 @@ public class EquilateralTriangle {
 
   @JsonProperty(JSON_PROPERTY_TRIANGLE_TYPE)
   @JsonInclude(value = JsonInclude.Include.ALWAYS)
-  public void setTriangleType(String triangleType) {
+  public void setTriangleType(@javax.annotation.Nonnull String triangleType) {
     this.triangleType = triangleType;
   }
 

samples/openapi3/client/petstore/java/jersey2-java8/src/main/java/org/openapitools/client/model/FileSchemaTestClass.java

@@ -39,15 +39,17 @@ import org.openapitools.client.JSON;
 @javax.annotation.Generated(value = "org.openapitools.codegen.languages.JavaClientCodegen", comments = "Generator version: 7.10.0-SNAPSHOT")
 public class FileSchemaTestClass {
   public static final String JSON_PROPERTY_FILE = "file";
+  @javax.annotation.Nullable
   private ModelFile _file;
 
   public static final String JSON_PROPERTY_FILES = "files";
+  @javax.annotation.Nullable
   private List<ModelFile> files = new ArrayList<>();
 
   public FileSchemaTestClass() { 
   }
 
-  public FileSchemaTestClass _file(ModelFile _file) {
+  public FileSchemaTestClass _file(@javax.annotation.Nullable ModelFile _file) {
     this._file = _file;
     return this;
   }
@@ -67,12 +69,12 @@ public class FileSchemaTestClass {
 
   @JsonProperty(JSON_PROPERTY_FILE)
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
-  public void setFile(ModelFile _file) {
+  public void setFile(@javax.annotation.Nullable ModelFile _file) {
     this._file = _file;
   }
 
 
-  public FileSchemaTestClass files(List<ModelFile> files) {
+  public FileSchemaTestClass files(@javax.annotation.Nullable List<ModelFile> files) {
     this.files = files;
     return this;
   }
@@ -100,7 +102,7 @@ public class FileSchemaTestClass {
 
   @JsonProperty(JSON_PROPERTY_FILES)
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
-  public void setFiles(List<ModelFile> files) {
+  public void setFiles(@javax.annotation.Nullable List<ModelFile> files) {
     this.files = files;
   }
 

samples/openapi3/client/petstore/java/jersey2-java8/src/main/java/org/openapitools/client/model/Foo.java

@@ -35,12 +35,13 @@ import org.openapitools.client.JSON;
 @javax.annotation.Generated(value = "org.openapitools.codegen.languages.JavaClientCodegen", comments = "Generator version: 7.10.0-SNAPSHOT")
 public class Foo {
   public static final String JSON_PROPERTY_BAR = "bar";
+  @javax.annotation.Nullable
   private String bar = "bar";
 
   public Foo() { 
   }
 
-  public Foo bar(String bar) {
+  public Foo bar(@javax.annotation.Nullable String bar) {
     this.bar = bar;
     return this;
   }
@@ -60,7 +61,7 @@ public class Foo {
 
   @JsonProperty(JSON_PROPERTY_BAR)
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
-  public void setBar(String bar) {
+  public void setBar(@javax.annotation.Nullable String bar) {
     this.bar = bar;
   }
 

samples/openapi3/client/petstore/java/jersey2-java8/src/main/java/org/openapitools/client/model/FooGetDefaultResponse.java

@@ -37,12 +37,13 @@ import org.openapitools.client.JSON;
 @javax.annotation.Generated(value = "org.openapitools.codegen.languages.JavaClientCodegen", comments = "Generator version: 7.10.0-SNAPSHOT")
 public class FooGetDefaultResponse {
   public static final String JSON_PROPERTY_STRING = "string";
+  @javax.annotation.Nullable
   private Foo string;
 
   public FooGetDefaultResponse() { 
   }
 
-  public FooGetDefaultResponse string(Foo string) {
+  public FooGetDefaultResponse string(@javax.annotation.Nullable Foo string) {
     this.string = string;
     return this;
   }
@@ -62,7 +63,7 @@ public class FooGetDefaultResponse {
 
   @JsonProperty(JSON_PROPERTY_STRING)
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
-  public void setString(Foo string) {
+  public void setString(@javax.annotation.Nullable Foo string) {
     this.string = string;
   }
 

samples/openapi3/client/petstore/java/jersey2-java8/src/main/java/org/openapitools/client/model/FormatTest.java

@@ -56,57 +56,73 @@ import org.openapitools.client.JSON;
 @javax.annotation.Generated(value = "org.openapitools.codegen.languages.JavaClientCodegen", comments = "Generator version: 7.10.0-SNAPSHOT")
 public class FormatTest {
   public static final String JSON_PROPERTY_INTEGER = "integer";
+  @javax.annotation.Nullable
   private Integer integer;
 
   public static final String JSON_PROPERTY_INT32 = "int32";
+  @javax.annotation.Nullable
   private Integer int32;
 
   public static final String JSON_PROPERTY_INT64 = "int64";
+  @javax.annotation.Nullable
   private Long int64;
 
   public static final String JSON_PROPERTY_NUMBER = "number";
+  @javax.annotation.Nonnull
   private BigDecimal number;
 
   public static final String JSON_PROPERTY_FLOAT = "float";
+  @javax.annotation.Nullable
   private Float _float;
 
   public static final String JSON_PROPERTY_DOUBLE = "double";
+  @javax.annotation.Nullable
   private Double _double;
 
   public static final String JSON_PROPERTY_DECIMAL = "decimal";
+  @javax.annotation.Nullable
   private BigDecimal decimal;
 
   public static final String JSON_PROPERTY_STRING = "string";
+  @javax.annotation.Nullable
   private String string;
 
   public static final String JSON_PROPERTY_BYTE = "byte";
+  @javax.annotation.Nonnull
   private byte[] _byte;
 
   public static final String JSON_PROPERTY_BINARY = "binary";
+  @javax.annotation.Nullable
   private File binary;
 
   public static final String JSON_PROPERTY_DATE = "date";
+  @javax.annotation.Nonnull
   private LocalDate date;
 
   public static final String JSON_PROPERTY_DATE_TIME = "dateTime";
+  @javax.annotation.Nullable
   private OffsetDateTime dateTime;
 
   public static final String JSON_PROPERTY_UUID = "uuid";
+  @javax.annotation.Nullable
   private UUID uuid;
 
   public static final String JSON_PROPERTY_PASSWORD = "password";
+  @javax.annotation.Nonnull
   private String password;
 
   public static final String JSON_PROPERTY_PATTERN_WITH_DIGITS = "pattern_with_digits";
+  @javax.annotation.Nullable
   private String patternWithDigits;
 
   public static final String JSON_PROPERTY_PATTERN_WITH_DIGITS_AND_DELIMITER = "pattern_with_digits_and_delimiter";
+  @javax.annotation.Nullable
   private String patternWithDigitsAndDelimiter;
 
   public FormatTest() { 
   }
 
-  public FormatTest integer(Integer integer) {
+  public FormatTest integer(@javax.annotation.Nullable Integer integer) {
     this.integer = integer;
     return this;
   }
@@ -128,12 +144,12 @@ public class FormatTest {
 
   @JsonProperty(JSON_PROPERTY_INTEGER)
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
-  public void setInteger(Integer integer) {
+  public void setInteger(@javax.annotation.Nullable Integer integer) {
     this.integer = integer;
   }
 
 
-  public FormatTest int32(Integer int32) {
+  public FormatTest int32(@javax.annotation.Nullable Integer int32) {
     this.int32 = int32;
     return this;
   }
@@ -155,12 +171,12 @@ public class FormatTest {
 
   @JsonProperty(JSON_PROPERTY_INT32)
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
-  public void setInt32(Integer int32) {
+  public void setInt32(@javax.annotation.Nullable Integer int32) {
     this.int32 = int32;
   }
 
 
-  public FormatTest int64(Long int64) {
+  public FormatTest int64(@javax.annotation.Nullable Long int64) {
     this.int64 = int64;
     return this;
   }
@@ -180,12 +196,12 @@ public class FormatTest {
 
   @JsonProperty(JSON_PROPERTY_INT64)
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
-  public void setInt64(Long int64) {
+  public void setInt64(@javax.annotation.Nullable Long int64) {
     this.int64 = int64;
   }
 
 
-  public FormatTest number(BigDecimal number) {
+  public FormatTest number(@javax.annotation.Nonnull BigDecimal number) {
     this.number = number;
     return this;
   }
@@ -207,12 +223,12 @@ public class FormatTest {
 
   @JsonProperty(JSON_PROPERTY_NUMBER)
   @JsonInclude(value = JsonInclude.Include.ALWAYS)
-  public void setNumber(BigDecimal number) {
+  public void setNumber(@javax.annotation.Nonnull BigDecimal number) {
     this.number = number;
   }
 
 
-  public FormatTest _float(Float _float) {
+  public FormatTest _float(@javax.annotation.Nullable Float _float) {
     this._float = _float;
     return this;
   }
@@ -234,12 +250,12 @@ public class FormatTest {
 
   @JsonProperty(JSON_PROPERTY_FLOAT)
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
-  public void setFloat(Float _float) {
+  public void setFloat(@javax.annotation.Nullable Float _float) {
     this._float = _float;
   }
 
 
-  public FormatTest _double(Double _double) {
+  public FormatTest _double(@javax.annotation.Nullable Double _double) {
     this._double = _double;
     return this;
   }
@@ -261,12 +277,12 @@ public class FormatTest {
 
   @JsonProperty(JSON_PROPERTY_DOUBLE)
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
-  public void setDouble(Double _double) {
+  public void setDouble(@javax.annotation.Nullable Double _double) {
     this._double = _double;
   }
 
 
-  public FormatTest decimal(BigDecimal decimal) {
+  public FormatTest decimal(@javax.annotation.Nullable BigDecimal decimal) {
     this.decimal = decimal;
     return this;
   }
@@ -286,12 +302,12 @@ public class FormatTest {
 
   @JsonProperty(JSON_PROPERTY_DECIMAL)
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
-  public void setDecimal(BigDecimal decimal) {
+  public void setDecimal(@javax.annotation.Nullable BigDecimal decimal) {
     this.decimal = decimal;
   }
 
 
-  public FormatTest string(String string) {
+  public FormatTest string(@javax.annotation.Nullable String string) {
     this.string = string;
     return this;
   }
@@ -311,12 +327,12 @@ public class FormatTest {
 
   @JsonProperty(JSON_PROPERTY_STRING)
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
-  public void setString(String string) {
+  public void setString(@javax.annotation.Nullable String string) {
     this.string = string;
   }
 
 
-  public FormatTest _byte(byte[] _byte) {
+  public FormatTest _byte(@javax.annotation.Nonnull byte[] _byte) {
     this._byte = _byte;
     return this;
   }
@@ -336,12 +352,12 @@ public class FormatTest {
 
   @JsonProperty(JSON_PROPERTY_BYTE)
   @JsonInclude(value = JsonInclude.Include.ALWAYS)
-  public void setByte(byte[] _byte) {
+  public void setByte(@javax.annotation.Nonnull byte[] _byte) {
     this._byte = _byte;
   }
 
 
-  public FormatTest binary(File binary) {
+  public FormatTest binary(@javax.annotation.Nullable File binary) {
     this.binary = binary;
     return this;
   }
@@ -361,12 +377,12 @@ public class FormatTest {
 
   @JsonProperty(JSON_PROPERTY_BINARY)
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
-  public void setBinary(File binary) {
+  public void setBinary(@javax.annotation.Nullable File binary) {
     this.binary = binary;
   }
 
 
-  public FormatTest date(LocalDate date) {
+  public FormatTest date(@javax.annotation.Nonnull LocalDate date) {
     this.date = date;
     return this;
   }
@@ -386,12 +402,12 @@ public class FormatTest {
 
   @JsonProperty(JSON_PROPERTY_DATE)
   @JsonInclude(value = JsonInclude.Include.ALWAYS)
-  public void setDate(LocalDate date) {
+  public void setDate(@javax.annotation.Nonnull LocalDate date) {
     this.date = date;
   }
 
 
-  public FormatTest dateTime(OffsetDateTime dateTime) {
+  public FormatTest dateTime(@javax.annotation.Nullable OffsetDateTime dateTime) {
     this.dateTime = dateTime;
     return this;
   }
@@ -411,12 +427,12 @@ public class FormatTest {
 
   @JsonProperty(JSON_PROPERTY_DATE_TIME)
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
-  public void setDateTime(OffsetDateTime dateTime) {
+  public void setDateTime(@javax.annotation.Nullable OffsetDateTime dateTime) {
     this.dateTime = dateTime;
   }
 
 
-  public FormatTest uuid(UUID uuid) {
+  public FormatTest uuid(@javax.annotation.Nullable UUID uuid) {
     this.uuid = uuid;
     return this;
   }
@@ -436,12 +452,12 @@ public class FormatTest {
 
   @JsonProperty(JSON_PROPERTY_UUID)
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
-  public void setUuid(UUID uuid) {
+  public void setUuid(@javax.annotation.Nullable UUID uuid) {
     this.uuid = uuid;
   }
 
 
-  public FormatTest password(String password) {
+  public FormatTest password(@javax.annotation.Nonnull String password) {
     this.password = password;
     return this;
   }
@@ -461,12 +477,12 @@ public class FormatTest {
 
   @JsonProperty(JSON_PROPERTY_PASSWORD)
   @JsonInclude(value = JsonInclude.Include.ALWAYS)
-  public void setPassword(String password) {
+  public void setPassword(@javax.annotation.Nonnull String password) {
     this.password = password;
   }
 
 
-  public FormatTest patternWithDigits(String patternWithDigits) {
+  public FormatTest patternWithDigits(@javax.annotation.Nullable String patternWithDigits) {
     this.patternWithDigits = patternWithDigits;
     return this;
   }
@@ -486,12 +502,12 @@ public class FormatTest {
 
   @JsonProperty(JSON_PROPERTY_PATTERN_WITH_DIGITS)
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
-  public void setPatternWithDigits(String patternWithDigits) {
+  public void setPatternWithDigits(@javax.annotation.Nullable String patternWithDigits) {
     this.patternWithDigits = patternWithDigits;
   }
 
 
-  public FormatTest patternWithDigitsAndDelimiter(String patternWithDigitsAndDelimiter) {
+  public FormatTest patternWithDigitsAndDelimiter(@javax.annotation.Nullable String patternWithDigitsAndDelimiter) {
     this.patternWithDigitsAndDelimiter = patternWithDigitsAndDelimiter;
     return this;
   }
@@ -511,7 +527,7 @@ public class FormatTest {
 
   @JsonProperty(JSON_PROPERTY_PATTERN_WITH_DIGITS_AND_DELIMITER)
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
-  public void setPatternWithDigitsAndDelimiter(String patternWithDigitsAndDelimiter) {
+  public void setPatternWithDigitsAndDelimiter(@javax.annotation.Nullable String patternWithDigitsAndDelimiter) {
     this.patternWithDigitsAndDelimiter = patternWithDigitsAndDelimiter;
   }
 

samples/openapi3/client/petstore/java/jersey2-java8/src/main/java/org/openapitools/client/model/GrandparentAnimal.java

@@ -48,12 +48,13 @@ import org.openapitools.client.JSON;
 
 public class GrandparentAnimal {
   public static final String JSON_PROPERTY_PET_TYPE = "pet_type";
+  @javax.annotation.Nonnull
   private String petType;
 
   public GrandparentAnimal() { 
   }
 
-  public GrandparentAnimal petType(String petType) {
+  public GrandparentAnimal petType(@javax.annotation.Nonnull String petType) {
     this.petType = petType;
     return this;
   }
@@ -73,7 +74,7 @@ public class GrandparentAnimal {
 
   @JsonProperty(JSON_PROPERTY_PET_TYPE)
   @JsonInclude(value = JsonInclude.Include.ALWAYS)
-  public void setPetType(String petType) {
+  public void setPetType(@javax.annotation.Nonnull String petType) {
     this.petType = petType;
   }
 

samples/openapi3/client/petstore/java/jersey2-java8/src/main/java/org/openapitools/client/model/HasOnlyReadOnly.java

@@ -37,9 +37,11 @@ import org.openapitools.client.JSON;
 @javax.annotation.Generated(value = "org.openapitools.codegen.languages.JavaClientCodegen", comments = "Generator version: 7.10.0-SNAPSHOT")
 public class HasOnlyReadOnly {
   public static final String JSON_PROPERTY_BAR = "bar";
+  @javax.annotation.Nullable
   private String bar;
 
   public static final String JSON_PROPERTY_FOO = "foo";
+  @javax.annotation.Nullable
   private String foo;
 
   public HasOnlyReadOnly() { 

samples/openapi3/client/petstore/java/jersey2-java8/src/main/java/org/openapitools/client/model/HealthCheckResult.java

@@ -44,7 +44,7 @@ public class HealthCheckResult {
   public HealthCheckResult() { 
   }
 
-  public HealthCheckResult nullableMessage(String nullableMessage) {
+  public HealthCheckResult nullableMessage(@javax.annotation.Nullable String nullableMessage) {
     this.nullableMessage = JsonNullable.<String>of(nullableMessage);
     return this;
   }
@@ -72,7 +72,7 @@ public class HealthCheckResult {
     this.nullableMessage = nullableMessage;
   }
 
-  public void setNullableMessage(String nullableMessage) {
+  public void setNullableMessage(@javax.annotation.Nullable String nullableMessage) {
     this.nullableMessage = JsonNullable.<String>of(nullableMessage);
   }
 

samples/openapi3/client/petstore/java/jersey2-java8/src/main/java/org/openapitools/client/model/IsoscelesTriangle.java

@@ -36,15 +36,17 @@ import org.openapitools.client.JSON;
 @javax.annotation.Generated(value = "org.openapitools.codegen.languages.JavaClientCodegen", comments = "Generator version: 7.10.0-SNAPSHOT")
 public class IsoscelesTriangle {
   public static final String JSON_PROPERTY_SHAPE_TYPE = "shapeType";
+  @javax.annotation.Nonnull
   private String shapeType;
 
   public static final String JSON_PROPERTY_TRIANGLE_TYPE = "triangleType";
+  @javax.annotation.Nonnull
   private String triangleType;
 
   public IsoscelesTriangle() { 
   }
 
-  public IsoscelesTriangle shapeType(String shapeType) {
+  public IsoscelesTriangle shapeType(@javax.annotation.Nonnull String shapeType) {
     this.shapeType = shapeType;
     return this;
   }
@@ -64,12 +66,12 @@ public class IsoscelesTriangle {
 
   @JsonProperty(JSON_PROPERTY_SHAPE_TYPE)
   @JsonInclude(value = JsonInclude.Include.ALWAYS)
-  public void setShapeType(String shapeType) {
+  public void setShapeType(@javax.annotation.Nonnull String shapeType) {
     this.shapeType = shapeType;
   }
 
 
-  public IsoscelesTriangle triangleType(String triangleType) {
+  public IsoscelesTriangle triangleType(@javax.annotation.Nonnull String triangleType) {
     this.triangleType = triangleType;
     return this;
   }
@@ -89,7 +91,7 @@ public class IsoscelesTriangle {
 
   @JsonProperty(JSON_PROPERTY_TRIANGLE_TYPE)
   @JsonInclude(value = JsonInclude.Include.ALWAYS)
-  public void setTriangleType(String triangleType) {
+  public void setTriangleType(@javax.annotation.Nonnull String triangleType) {
     this.triangleType = triangleType;
   }
 

samples/openapi3/client/petstore/java/jersey2-java8/src/main/java/org/openapitools/client/model/MapTest.java

@@ -40,6 +40,7 @@ import org.openapitools.client.JSON;
 @javax.annotation.Generated(value = "org.openapitools.codegen.languages.JavaClientCodegen", comments = "Generator version: 7.10.0-SNAPSHOT")
 public class MapTest {
   public static final String JSON_PROPERTY_MAP_MAP_OF_STRING = "map_map_of_string";
+  @javax.annotation.Nullable
   private Map<String, Map<String, String>> mapMapOfString = new HashMap<>();
 
   /**
@@ -78,18 +79,21 @@ public class MapTest {
   }
 
   public static final String JSON_PROPERTY_MAP_OF_ENUM_STRING = "map_of_enum_string";
+  @javax.annotation.Nullable
   private Map<String, InnerEnum> mapOfEnumString = new HashMap<>();
 
   public static final String JSON_PROPERTY_DIRECT_MAP = "direct_map";
+  @javax.annotation.Nullable
   private Map<String, Boolean> directMap = new HashMap<>();
 
   public static final String JSON_PROPERTY_INDIRECT_MAP = "indirect_map";
+  @javax.annotation.Nullable
   private Map<String, Boolean> indirectMap = new HashMap<>();
 
   public MapTest() { 
   }
 
-  public MapTest mapMapOfString(Map<String, Map<String, String>> mapMapOfString) {
+  public MapTest mapMapOfString(@javax.annotation.Nullable Map<String, Map<String, String>> mapMapOfString) {
     this.mapMapOfString = mapMapOfString;
     return this;
   }
@@ -117,12 +121,12 @@ public class MapTest {
 
   @JsonProperty(JSON_PROPERTY_MAP_MAP_OF_STRING)
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
-  public void setMapMapOfString(Map<String, Map<String, String>> mapMapOfString) {
+  public void setMapMapOfString(@javax.annotation.Nullable Map<String, Map<String, String>> mapMapOfString) {
     this.mapMapOfString = mapMapOfString;
   }
 
 
-  public MapTest mapOfEnumString(Map<String, InnerEnum> mapOfEnumString) {
+  public MapTest mapOfEnumString(@javax.annotation.Nullable Map<String, InnerEnum> mapOfEnumString) {
     this.mapOfEnumString = mapOfEnumString;
     return this;
   }
@@ -150,12 +154,12 @@ public class MapTest {
 
   @JsonProperty(JSON_PROPERTY_MAP_OF_ENUM_STRING)
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
-  public void setMapOfEnumString(Map<String, InnerEnum> mapOfEnumString) {
+  public void setMapOfEnumString(@javax.annotation.Nullable Map<String, InnerEnum> mapOfEnumString) {
     this.mapOfEnumString = mapOfEnumString;
   }
 
 
-  public MapTest directMap(Map<String, Boolean> directMap) {
+  public MapTest directMap(@javax.annotation.Nullable Map<String, Boolean> directMap) {
     this.directMap = directMap;
     return this;
   }
@@ -183,12 +187,12 @@ public class MapTest {
 
   @JsonProperty(JSON_PROPERTY_DIRECT_MAP)
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
-  public void setDirectMap(Map<String, Boolean> directMap) {
+  public void setDirectMap(@javax.annotation.Nullable Map<String, Boolean> directMap) {
     this.directMap = directMap;
   }
 
 
-  public MapTest indirectMap(Map<String, Boolean> indirectMap) {
+  public MapTest indirectMap(@javax.annotation.Nullable Map<String, Boolean> indirectMap) {
     this.indirectMap = indirectMap;
     return this;
   }
@@ -216,7 +220,7 @@ public class MapTest {
 
   @JsonProperty(JSON_PROPERTY_INDIRECT_MAP)
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
-  public void setIndirectMap(Map<String, Boolean> indirectMap) {
+  public void setIndirectMap(@javax.annotation.Nullable Map<String, Boolean> indirectMap) {
     this.indirectMap = indirectMap;
   }
 

samples/openapi3/client/petstore/java/jersey2-java8/src/main/java/org/openapitools/client/model/MixedPropertiesAndAdditionalPropertiesClass.java

@@ -42,18 +42,21 @@ import org.openapitools.client.JSON;
 @javax.annotation.Generated(value = "org.openapitools.codegen.languages.JavaClientCodegen", comments = "Generator version: 7.10.0-SNAPSHOT")
 public class MixedPropertiesAndAdditionalPropertiesClass {
   public static final String JSON_PROPERTY_UUID = "uuid";
+  @javax.annotation.Nullable
   private UUID uuid;
 
   public static final String JSON_PROPERTY_DATE_TIME = "dateTime";
+  @javax.annotation.Nullable
   private OffsetDateTime dateTime;
 
   public static final String JSON_PROPERTY_MAP = "map";
+  @javax.annotation.Nullable
   private Map<String, Animal> map = new HashMap<>();
 
   public MixedPropertiesAndAdditionalPropertiesClass() { 
   }
 
-  public MixedPropertiesAndAdditionalPropertiesClass uuid(UUID uuid) {
+  public MixedPropertiesAndAdditionalPropertiesClass uuid(@javax.annotation.Nullable UUID uuid) {
     this.uuid = uuid;
     return this;
   }
@@ -73,12 +76,12 @@ public class MixedPropertiesAndAdditionalPropertiesClass {
 
   @JsonProperty(JSON_PROPERTY_UUID)
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
-  public void setUuid(UUID uuid) {
+  public void setUuid(@javax.annotation.Nullable UUID uuid) {
     this.uuid = uuid;
   }
 
 
-  public MixedPropertiesAndAdditionalPropertiesClass dateTime(OffsetDateTime dateTime) {
+  public MixedPropertiesAndAdditionalPropertiesClass dateTime(@javax.annotation.Nullable OffsetDateTime dateTime) {
     this.dateTime = dateTime;
     return this;
   }
@@ -98,12 +101,12 @@ public class MixedPropertiesAndAdditionalPropertiesClass {
 
   @JsonProperty(JSON_PROPERTY_DATE_TIME)
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
-  public void setDateTime(OffsetDateTime dateTime) {
+  public void setDateTime(@javax.annotation.Nullable OffsetDateTime dateTime) {
     this.dateTime = dateTime;
   }
 
 
-  public MixedPropertiesAndAdditionalPropertiesClass map(Map<String, Animal> map) {
+  public MixedPropertiesAndAdditionalPropertiesClass map(@javax.annotation.Nullable Map<String, Animal> map) {
     this.map = map;
     return this;
   }
@@ -131,7 +134,7 @@ public class MixedPropertiesAndAdditionalPropertiesClass {
 
   @JsonProperty(JSON_PROPERTY_MAP)
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
-  public void setMap(Map<String, Animal> map) {
+  public void setMap(@javax.annotation.Nullable Map<String, Animal> map) {
     this.map = map;
   }
 

samples/openapi3/client/petstore/java/jersey2-java8/src/main/java/org/openapitools/client/model/Model200Response.java

@@ -37,15 +37,17 @@ import org.openapitools.client.JSON;
 @javax.annotation.Generated(value = "org.openapitools.codegen.languages.JavaClientCodegen", comments = "Generator version: 7.10.0-SNAPSHOT")
 public class Model200Response {
   public static final String JSON_PROPERTY_NAME = "name";
+  @javax.annotation.Nullable
   private Integer name;
 
   public static final String JSON_PROPERTY_PROPERTY_CLASS = "class";
+  @javax.annotation.Nullable
   private String propertyClass;
 
   public Model200Response() { 
   }
 
-  public Model200Response name(Integer name) {
+  public Model200Response name(@javax.annotation.Nullable Integer name) {
     this.name = name;
     return this;
   }
@@ -65,12 +67,12 @@ public class Model200Response {
 
   @JsonProperty(JSON_PROPERTY_NAME)
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
-  public void setName(Integer name) {
+  public void setName(@javax.annotation.Nullable Integer name) {
     this.name = name;
   }
 
 
-  public Model200Response propertyClass(String propertyClass) {
+  public Model200Response propertyClass(@javax.annotation.Nullable String propertyClass) {
     this.propertyClass = propertyClass;
     return this;
   }
@@ -90,7 +92,7 @@ public class Model200Response {
 
   @JsonProperty(JSON_PROPERTY_PROPERTY_CLASS)
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
-  public void setPropertyClass(String propertyClass) {
+  public void setPropertyClass(@javax.annotation.Nullable String propertyClass) {
     this.propertyClass = propertyClass;
   }
 

samples/openapi3/client/petstore/java/jersey2-java8/src/main/java/org/openapitools/client/model/ModelApiResponse.java

@@ -38,18 +38,21 @@ import org.openapitools.client.JSON;
 @javax.annotation.Generated(value = "org.openapitools.codegen.languages.JavaClientCodegen", comments = "Generator version: 7.10.0-SNAPSHOT")
 public class ModelApiResponse {
   public static final String JSON_PROPERTY_CODE = "code";
+  @javax.annotation.Nullable
   private Integer code;
 
   public static final String JSON_PROPERTY_TYPE = "type";
+  @javax.annotation.Nullable
   private String type;
 
   public static final String JSON_PROPERTY_MESSAGE = "message";
+  @javax.annotation.Nullable
   private String message;
 
   public ModelApiResponse() { 
   }
 
-  public ModelApiResponse code(Integer code) {
+  public ModelApiResponse code(@javax.annotation.Nullable Integer code) {
     this.code = code;
     return this;
   }
@@ -69,12 +72,12 @@ public class ModelApiResponse {
 
   @JsonProperty(JSON_PROPERTY_CODE)
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
-  public void setCode(Integer code) {
+  public void setCode(@javax.annotation.Nullable Integer code) {
     this.code = code;
   }
 
 
-  public ModelApiResponse type(String type) {
+  public ModelApiResponse type(@javax.annotation.Nullable String type) {
     this.type = type;
     return this;
   }
@@ -94,12 +97,12 @@ public class ModelApiResponse {
 
   @JsonProperty(JSON_PROPERTY_TYPE)
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
-  public void setType(String type) {
+  public void setType(@javax.annotation.Nullable String type) {
     this.type = type;
   }
 
 
-  public ModelApiResponse message(String message) {
+  public ModelApiResponse message(@javax.annotation.Nullable String message) {
     this.message = message;
     return this;
   }
@@ -119,7 +122,7 @@ public class ModelApiResponse {
 
   @JsonProperty(JSON_PROPERTY_MESSAGE)
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
-  public void setMessage(String message) {
+  public void setMessage(@javax.annotation.Nullable String message) {
     this.message = message;
   }
 

samples/openapi3/client/petstore/java/jersey2-java8/src/main/java/org/openapitools/client/model/ModelFile.java

@@ -36,12 +36,13 @@ import org.openapitools.client.JSON;
 @javax.annotation.Generated(value = "org.openapitools.codegen.languages.JavaClientCodegen", comments = "Generator version: 7.10.0-SNAPSHOT")
 public class ModelFile {
   public static final String JSON_PROPERTY_SOURCE_U_R_I = "sourceURI";
+  @javax.annotation.Nullable
   private String sourceURI;
 
   public ModelFile() { 
   }
 
-  public ModelFile sourceURI(String sourceURI) {
+  public ModelFile sourceURI(@javax.annotation.Nullable String sourceURI) {
     this.sourceURI = sourceURI;
     return this;
   }
@@ -61,7 +62,7 @@ public class ModelFile {
 
   @JsonProperty(JSON_PROPERTY_SOURCE_U_R_I)
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
-  public void setSourceURI(String sourceURI) {
+  public void setSourceURI(@javax.annotation.Nullable String sourceURI) {
     this.sourceURI = sourceURI;
   }
 

samples/openapi3/client/petstore/java/jersey2-java8/src/main/java/org/openapitools/client/model/ModelList.java

@@ -36,12 +36,13 @@ import org.openapitools.client.JSON;
 @javax.annotation.Generated(value = "org.openapitools.codegen.languages.JavaClientCodegen", comments = "Generator version: 7.10.0-SNAPSHOT")
 public class ModelList {
   public static final String JSON_PROPERTY_123LIST = "123-list";
+  @javax.annotation.Nullable
   private String _123list;
 
   public ModelList() { 
   }
 
-  public ModelList _123list(String _123list) {
+  public ModelList _123list(@javax.annotation.Nullable String _123list) {
     this._123list = _123list;
     return this;
   }
@@ -61,7 +62,7 @@ public class ModelList {
 
   @JsonProperty(JSON_PROPERTY_123LIST)
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
-  public void set123list(String _123list) {
+  public void set123list(@javax.annotation.Nullable String _123list) {
     this._123list = _123list;
   }
 

samples/openapi3/client/petstore/java/jersey2-java8/src/main/java/org/openapitools/client/model/ModelReturn.java

@@ -36,12 +36,13 @@ import org.openapitools.client.JSON;
 @javax.annotation.Generated(value = "org.openapitools.codegen.languages.JavaClientCodegen", comments = "Generator version: 7.10.0-SNAPSHOT")
 public class ModelReturn {
   public static final String JSON_PROPERTY_RETURN = "return";
+  @javax.annotation.Nullable
   private Integer _return;
 
   public ModelReturn() { 
   }
 
-  public ModelReturn _return(Integer _return) {
+  public ModelReturn _return(@javax.annotation.Nullable Integer _return) {
     this._return = _return;
     return this;
   }
@@ -61,7 +62,7 @@ public class ModelReturn {
 
   @JsonProperty(JSON_PROPERTY_RETURN)
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
-  public void setReturn(Integer _return) {
+  public void setReturn(@javax.annotation.Nullable Integer _return) {
     this._return = _return;
   }
 

samples/openapi3/client/petstore/java/jersey2-java8/src/main/java/org/openapitools/client/model/Name.java

@@ -38,15 +38,19 @@ import org.openapitools.client.JSON;
 @javax.annotation.Generated(value = "org.openapitools.codegen.languages.JavaClientCodegen", comments = "Generator version: 7.10.0-SNAPSHOT")
 public class Name {
   public static final String JSON_PROPERTY_NAME = "name";
+  @javax.annotation.Nonnull
   private Integer name;
 
   public static final String JSON_PROPERTY_SNAKE_CASE = "snake_case";
+  @javax.annotation.Nullable
   private Integer snakeCase;
 
   public static final String JSON_PROPERTY_PROPERTY = "property";
+  @javax.annotation.Nullable
   private String property;
 
   public static final String JSON_PROPERTY_123NUMBER = "123Number";
+  @javax.annotation.Nullable
   private Integer _123number;
 
   public Name() { 
@@ -62,7 +66,7 @@ public class Name {
     this._123number = _123number;
   }
 
-  public Name name(Integer name) {
+  public Name name(@javax.annotation.Nonnull Integer name) {
     this.name = name;
     return this;
   }
@@ -82,7 +86,7 @@ public class Name {
 
   @JsonProperty(JSON_PROPERTY_NAME)
   @JsonInclude(value = JsonInclude.Include.ALWAYS)
-  public void setName(Integer name) {
+  public void setName(@javax.annotation.Nonnull Integer name) {
     this.name = name;
   }
 
@@ -102,7 +106,7 @@ public class Name {
 
 
 
-  public Name property(String property) {
+  public Name property(@javax.annotation.Nullable String property) {
     this.property = property;
     return this;
   }
@@ -122,7 +126,7 @@ public class Name {
 
   @JsonProperty(JSON_PROPERTY_PROPERTY)
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
-  public void setProperty(String property) {
+  public void setProperty(@javax.annotation.Nullable String property) {
     this.property = property;
   }
 

samples/openapi3/client/petstore/java/jersey2-java8/src/main/java/org/openapitools/client/model/NullableClass.java

@@ -85,6 +85,7 @@ public class NullableClass {
   private JsonNullable<List<Object>> arrayAndItemsNullableProp = JsonNullable.<List<Object>>undefined();
 
   public static final String JSON_PROPERTY_ARRAY_ITEMS_NULLABLE = "array_items_nullable";
+  @javax.annotation.Nullable
   private List<Object> arrayItemsNullable = new ArrayList<>();
 
   public static final String JSON_PROPERTY_OBJECT_NULLABLE_PROP = "object_nullable_prop";
@@ -94,12 +95,13 @@ public class NullableClass {
   private JsonNullable<Map<String, Object>> objectAndItemsNullableProp = JsonNullable.<Map<String, Object>>undefined();
 
   public static final String JSON_PROPERTY_OBJECT_ITEMS_NULLABLE = "object_items_nullable";
+  @javax.annotation.Nullable
   private Map<String, Object> objectItemsNullable = new HashMap<>();
 
   public NullableClass() { 
   }
 
-  public NullableClass integerProp(Integer integerProp) {
+  public NullableClass integerProp(@javax.annotation.Nullable Integer integerProp) {
     this.integerProp = JsonNullable.<Integer>of(integerProp);
     return this;
   }
@@ -127,12 +129,12 @@ public class NullableClass {
     this.integerProp = integerProp;
   }
 
-  public void setIntegerProp(Integer integerProp) {
+  public void setIntegerProp(@javax.annotation.Nullable Integer integerProp) {
     this.integerProp = JsonNullable.<Integer>of(integerProp);
   }
 
 
-  public NullableClass numberProp(BigDecimal numberProp) {
+  public NullableClass numberProp(@javax.annotation.Nullable BigDecimal numberProp) {
     this.numberProp = JsonNullable.<BigDecimal>of(numberProp);
     return this;
   }
@@ -160,12 +162,12 @@ public class NullableClass {
     this.numberProp = numberProp;
   }
 
-  public void setNumberProp(BigDecimal numberProp) {
+  public void setNumberProp(@javax.annotation.Nullable BigDecimal numberProp) {
     this.numberProp = JsonNullable.<BigDecimal>of(numberProp);
   }
 
 
-  public NullableClass booleanProp(Boolean booleanProp) {
+  public NullableClass booleanProp(@javax.annotation.Nullable Boolean booleanProp) {
     this.booleanProp = JsonNullable.<Boolean>of(booleanProp);
     return this;
   }
@@ -193,12 +195,12 @@ public class NullableClass {
     this.booleanProp = booleanProp;
   }
 
-  public void setBooleanProp(Boolean booleanProp) {
+  public void setBooleanProp(@javax.annotation.Nullable Boolean booleanProp) {
     this.booleanProp = JsonNullable.<Boolean>of(booleanProp);
   }
 
 
-  public NullableClass stringProp(String stringProp) {
+  public NullableClass stringProp(@javax.annotation.Nullable String stringProp) {
     this.stringProp = JsonNullable.<String>of(stringProp);
     return this;
   }
@@ -226,12 +228,12 @@ public class NullableClass {
     this.stringProp = stringProp;
   }
 
-  public void setStringProp(String stringProp) {
+  public void setStringProp(@javax.annotation.Nullable String stringProp) {
     this.stringProp = JsonNullable.<String>of(stringProp);
   }
 
 
-  public NullableClass dateProp(LocalDate dateProp) {
+  public NullableClass dateProp(@javax.annotation.Nullable LocalDate dateProp) {
     this.dateProp = JsonNullable.<LocalDate>of(dateProp);
     return this;
   }
@@ -259,12 +261,12 @@ public class NullableClass {
     this.dateProp = dateProp;
   }
 
-  public void setDateProp(LocalDate dateProp) {
+  public void setDateProp(@javax.annotation.Nullable LocalDate dateProp) {
     this.dateProp = JsonNullable.<LocalDate>of(dateProp);
   }
 
 
-  public NullableClass datetimeProp(OffsetDateTime datetimeProp) {
+  public NullableClass datetimeProp(@javax.annotation.Nullable OffsetDateTime datetimeProp) {
     this.datetimeProp = JsonNullable.<OffsetDateTime>of(datetimeProp);
     return this;
   }
@@ -292,12 +294,12 @@ public class NullableClass {
     this.datetimeProp = datetimeProp;
   }
 
-  public void setDatetimeProp(OffsetDateTime datetimeProp) {
+  public void setDatetimeProp(@javax.annotation.Nullable OffsetDateTime datetimeProp) {
     this.datetimeProp = JsonNullable.<OffsetDateTime>of(datetimeProp);
   }
 
 
-  public NullableClass arrayNullableProp(List<Object> arrayNullableProp) {
+  public NullableClass arrayNullableProp(@javax.annotation.Nullable List<Object> arrayNullableProp) {
     this.arrayNullableProp = JsonNullable.<List<Object>>of(arrayNullableProp);
     return this;
   }
@@ -337,12 +339,12 @@ public class NullableClass {
     this.arrayNullableProp = arrayNullableProp;
   }
 
-  public void setArrayNullableProp(List<Object> arrayNullableProp) {
+  public void setArrayNullableProp(@javax.annotation.Nullable List<Object> arrayNullableProp) {
     this.arrayNullableProp = JsonNullable.<List<Object>>of(arrayNullableProp);
   }
 
 
-  public NullableClass arrayAndItemsNullableProp(List<Object> arrayAndItemsNullableProp) {
+  public NullableClass arrayAndItemsNullableProp(@javax.annotation.Nullable List<Object> arrayAndItemsNullableProp) {
     this.arrayAndItemsNullableProp = JsonNullable.<List<Object>>of(arrayAndItemsNullableProp);
     return this;
   }
@@ -382,12 +384,12 @@ public class NullableClass {
     this.arrayAndItemsNullableProp = arrayAndItemsNullableProp;
   }
 
-  public void setArrayAndItemsNullableProp(List<Object> arrayAndItemsNullableProp) {
+  public void setArrayAndItemsNullableProp(@javax.annotation.Nullable List<Object> arrayAndItemsNullableProp) {
     this.arrayAndItemsNullableProp = JsonNullable.<List<Object>>of(arrayAndItemsNullableProp);
   }
 
 
-  public NullableClass arrayItemsNullable(List<Object> arrayItemsNullable) {
+  public NullableClass arrayItemsNullable(@javax.annotation.Nullable List<Object> arrayItemsNullable) {
     this.arrayItemsNullable = arrayItemsNullable;
     return this;
   }
@@ -415,12 +417,12 @@ public class NullableClass {
 
   @JsonProperty(JSON_PROPERTY_ARRAY_ITEMS_NULLABLE)
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
-  public void setArrayItemsNullable(List<Object> arrayItemsNullable) {
+  public void setArrayItemsNullable(@javax.annotation.Nullable List<Object> arrayItemsNullable) {
     this.arrayItemsNullable = arrayItemsNullable;
   }
 
 
-  public NullableClass objectNullableProp(Map<String, Object> objectNullableProp) {
+  public NullableClass objectNullableProp(@javax.annotation.Nullable Map<String, Object> objectNullableProp) {
     this.objectNullableProp = JsonNullable.<Map<String, Object>>of(objectNullableProp);
     return this;
   }
@@ -460,12 +462,12 @@ public class NullableClass {
     this.objectNullableProp = objectNullableProp;
   }
 
-  public void setObjectNullableProp(Map<String, Object> objectNullableProp) {
+  public void setObjectNullableProp(@javax.annotation.Nullable Map<String, Object> objectNullableProp) {
     this.objectNullableProp = JsonNullable.<Map<String, Object>>of(objectNullableProp);
   }
 
 
-  public NullableClass objectAndItemsNullableProp(Map<String, Object> objectAndItemsNullableProp) {
+  public NullableClass objectAndItemsNullableProp(@javax.annotation.Nullable Map<String, Object> objectAndItemsNullableProp) {
     this.objectAndItemsNullableProp = JsonNullable.<Map<String, Object>>of(objectAndItemsNullableProp);
     return this;
   }
@@ -505,12 +507,12 @@ public class NullableClass {
     this.objectAndItemsNullableProp = objectAndItemsNullableProp;
   }
 
-  public void setObjectAndItemsNullableProp(Map<String, Object> objectAndItemsNullableProp) {
+  public void setObjectAndItemsNullableProp(@javax.annotation.Nullable Map<String, Object> objectAndItemsNullableProp) {
     this.objectAndItemsNullableProp = JsonNullable.<Map<String, Object>>of(objectAndItemsNullableProp);
   }
 
 
-  public NullableClass objectItemsNullable(Map<String, Object> objectItemsNullable) {
+  public NullableClass objectItemsNullable(@javax.annotation.Nullable Map<String, Object> objectItemsNullable) {
     this.objectItemsNullable = objectItemsNullable;
     return this;
   }
@@ -538,7 +540,7 @@ public class NullableClass {
 
   @JsonProperty(JSON_PROPERTY_OBJECT_ITEMS_NULLABLE)
   @JsonInclude(content = JsonInclude.Include.ALWAYS, value = JsonInclude.Include.USE_DEFAULTS)
-  public void setObjectItemsNullable(Map<String, Object> objectItemsNullable) {
+  public void setObjectItemsNullable(@javax.annotation.Nullable Map<String, Object> objectItemsNullable) {
     this.objectItemsNullable = objectItemsNullable;
   }
 

samples/openapi3/client/petstore/java/jersey2-java8/src/main/java/org/openapitools/client/model/NumberOnly.java

@@ -36,12 +36,13 @@ import org.openapitools.client.JSON;
 @javax.annotation.Generated(value = "org.openapitools.codegen.languages.JavaClientCodegen", comments = "Generator version: 7.10.0-SNAPSHOT")
 public class NumberOnly {
   public static final String JSON_PROPERTY_JUST_NUMBER = "JustNumber";
+  @javax.annotation.Nullable
   private BigDecimal justNumber;
 
   public NumberOnly() { 
   }
 
-  public NumberOnly justNumber(BigDecimal justNumber) {
+  public NumberOnly justNumber(@javax.annotation.Nullable BigDecimal justNumber) {
     this.justNumber = justNumber;
     return this;
   }
@@ -61,7 +62,7 @@ public class NumberOnly {
 
   @JsonProperty(JSON_PROPERTY_JUST_NUMBER)
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
-  public void setJustNumber(BigDecimal justNumber) {
+  public void setJustNumber(@javax.annotation.Nullable BigDecimal justNumber) {
     this.justNumber = justNumber;
   }
 

samples/openapi3/client/petstore/java/jersey2-java8/src/main/java/org/openapitools/client/model/ObjectWithDeprecatedFields.java

@@ -42,24 +42,28 @@ import org.openapitools.client.JSON;
 @javax.annotation.Generated(value = "org.openapitools.codegen.languages.JavaClientCodegen", comments = "Generator version: 7.10.0-SNAPSHOT")
 public class ObjectWithDeprecatedFields {
   public static final String JSON_PROPERTY_UUID = "uuid";
+  @javax.annotation.Nullable
   private String uuid;
 
   public static final String JSON_PROPERTY_ID = "id";
   @Deprecated
+  @javax.annotation.Nullable
   private BigDecimal id;
 
   public static final String JSON_PROPERTY_DEPRECATED_REF = "deprecatedRef";
   @Deprecated
+  @javax.annotation.Nullable
   private DeprecatedObject deprecatedRef;
 
   public static final String JSON_PROPERTY_BARS = "bars";
   @Deprecated
+  @javax.annotation.Nullable
   private List<String> bars = new ArrayList<>();
 
   public ObjectWithDeprecatedFields() { 
   }
 
-  public ObjectWithDeprecatedFields uuid(String uuid) {
+  public ObjectWithDeprecatedFields uuid(@javax.annotation.Nullable String uuid) {
     this.uuid = uuid;
     return this;
   }
@@ -79,13 +83,13 @@ public class ObjectWithDeprecatedFields {
 
   @JsonProperty(JSON_PROPERTY_UUID)
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
-  public void setUuid(String uuid) {
+  public void setUuid(@javax.annotation.Nullable String uuid) {
     this.uuid = uuid;
   }
 
 
   @Deprecated
-  public ObjectWithDeprecatedFields id(BigDecimal id) {
+  public ObjectWithDeprecatedFields id(@javax.annotation.Nullable BigDecimal id) {
     this.id = id;
     return this;
   }
@@ -108,13 +112,13 @@ public class ObjectWithDeprecatedFields {
   @Deprecated
   @JsonProperty(JSON_PROPERTY_ID)
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
-  public void setId(BigDecimal id) {
+  public void setId(@javax.annotation.Nullable BigDecimal id) {
     this.id = id;
   }
 
 
   @Deprecated
-  public ObjectWithDeprecatedFields deprecatedRef(DeprecatedObject deprecatedRef) {
+  public ObjectWithDeprecatedFields deprecatedRef(@javax.annotation.Nullable DeprecatedObject deprecatedRef) {
     this.deprecatedRef = deprecatedRef;
     return this;
   }
@@ -137,13 +141,13 @@ public class ObjectWithDeprecatedFields {
   @Deprecated
   @JsonProperty(JSON_PROPERTY_DEPRECATED_REF)
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
-  public void setDeprecatedRef(DeprecatedObject deprecatedRef) {
+  public void setDeprecatedRef(@javax.annotation.Nullable DeprecatedObject deprecatedRef) {
     this.deprecatedRef = deprecatedRef;
   }
 
 
   @Deprecated
-  public ObjectWithDeprecatedFields bars(List<String> bars) {
+  public ObjectWithDeprecatedFields bars(@javax.annotation.Nullable List<String> bars) {
     this.bars = bars;
     return this;
   }
@@ -174,7 +178,7 @@ public class ObjectWithDeprecatedFields {
   @Deprecated
   @JsonProperty(JSON_PROPERTY_BARS)
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
-  public void setBars(List<String> bars) {
+  public void setBars(@javax.annotation.Nullable List<String> bars) {
     this.bars = bars;
   }
 

samples/openapi3/client/petstore/java/jersey2-java8/src/main/java/org/openapitools/client/model/Order.java

@@ -41,15 +41,19 @@ import org.openapitools.client.JSON;
 @javax.annotation.Generated(value = "org.openapitools.codegen.languages.JavaClientCodegen", comments = "Generator version: 7.10.0-SNAPSHOT")
 public class Order {
   public static final String JSON_PROPERTY_ID = "id";
+  @javax.annotation.Nullable
   private Long id;
 
   public static final String JSON_PROPERTY_PET_ID = "petId";
+  @javax.annotation.Nullable
   private Long petId;
 
   public static final String JSON_PROPERTY_QUANTITY = "quantity";
+  @javax.annotation.Nullable
   private Integer quantity;
 
   public static final String JSON_PROPERTY_SHIP_DATE = "shipDate";
+  @javax.annotation.Nullable
   private OffsetDateTime shipDate;
 
   /**
@@ -90,15 +94,17 @@ public class Order {
   }
 
   public static final String JSON_PROPERTY_STATUS = "status";
+  @javax.annotation.Nullable
   private StatusEnum status;
 
   public static final String JSON_PROPERTY_COMPLETE = "complete";
+  @javax.annotation.Nullable
   private Boolean complete = false;
 
   public Order() { 
   }
 
-  public Order id(Long id) {
+  public Order id(@javax.annotation.Nullable Long id) {
     this.id = id;
     return this;
   }
@@ -118,12 +124,12 @@ public class Order {
 
   @JsonProperty(JSON_PROPERTY_ID)
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
-  public void setId(Long id) {
+  public void setId(@javax.annotation.Nullable Long id) {
     this.id = id;
   }
 
 
-  public Order petId(Long petId) {
+  public Order petId(@javax.annotation.Nullable Long petId) {
     this.petId = petId;
     return this;
   }
@@ -143,12 +149,12 @@ public class Order {
 
   @JsonProperty(JSON_PROPERTY_PET_ID)
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
-  public void setPetId(Long petId) {
+  public void setPetId(@javax.annotation.Nullable Long petId) {
     this.petId = petId;
   }
 
 
-  public Order quantity(Integer quantity) {
+  public Order quantity(@javax.annotation.Nullable Integer quantity) {
     this.quantity = quantity;
     return this;
   }
@@ -168,12 +174,12 @@ public class Order {
 
   @JsonProperty(JSON_PROPERTY_QUANTITY)
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
-  public void setQuantity(Integer quantity) {
+  public void setQuantity(@javax.annotation.Nullable Integer quantity) {
     this.quantity = quantity;
   }
 
 
-  public Order shipDate(OffsetDateTime shipDate) {
+  public Order shipDate(@javax.annotation.Nullable OffsetDateTime shipDate) {
     this.shipDate = shipDate;
     return this;
   }
@@ -193,12 +199,12 @@ public class Order {
 
   @JsonProperty(JSON_PROPERTY_SHIP_DATE)
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
-  public void setShipDate(OffsetDateTime shipDate) {
+  public void setShipDate(@javax.annotation.Nullable OffsetDateTime shipDate) {
     this.shipDate = shipDate;
   }
 
 
-  public Order status(StatusEnum status) {
+  public Order status(@javax.annotation.Nullable StatusEnum status) {
     this.status = status;
     return this;
   }
@@ -218,12 +224,12 @@ public class Order {
 
   @JsonProperty(JSON_PROPERTY_STATUS)
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
-  public void setStatus(StatusEnum status) {
+  public void setStatus(@javax.annotation.Nullable StatusEnum status) {
     this.status = status;
   }
 
 
-  public Order complete(Boolean complete) {
+  public Order complete(@javax.annotation.Nullable Boolean complete) {
     this.complete = complete;
     return this;
   }
@@ -243,7 +249,7 @@ public class Order {
 
   @JsonProperty(JSON_PROPERTY_COMPLETE)
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
-  public void setComplete(Boolean complete) {
+  public void setComplete(@javax.annotation.Nullable Boolean complete) {
     this.complete = complete;
   }
 

samples/openapi3/client/petstore/java/jersey2-java8/src/main/java/org/openapitools/client/model/OuterComposite.java

@@ -38,18 +38,21 @@ import org.openapitools.client.JSON;
 @javax.annotation.Generated(value = "org.openapitools.codegen.languages.JavaClientCodegen", comments = "Generator version: 7.10.0-SNAPSHOT")
 public class OuterComposite {
   public static final String JSON_PROPERTY_MY_NUMBER = "my_number";
+  @javax.annotation.Nullable
   private BigDecimal myNumber;
 
   public static final String JSON_PROPERTY_MY_STRING = "my_string";
+  @javax.annotation.Nullable
   private String myString;
 
   public static final String JSON_PROPERTY_MY_BOOLEAN = "my_boolean";
+  @javax.annotation.Nullable
   private Boolean myBoolean;
 
   public OuterComposite() { 
   }
 
-  public OuterComposite myNumber(BigDecimal myNumber) {
+  public OuterComposite myNumber(@javax.annotation.Nullable BigDecimal myNumber) {
     this.myNumber = myNumber;
     return this;
   }
@@ -69,12 +72,12 @@ public class OuterComposite {
 
   @JsonProperty(JSON_PROPERTY_MY_NUMBER)
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
-  public void setMyNumber(BigDecimal myNumber) {
+  public void setMyNumber(@javax.annotation.Nullable BigDecimal myNumber) {
     this.myNumber = myNumber;
   }
 
 
-  public OuterComposite myString(String myString) {
+  public OuterComposite myString(@javax.annotation.Nullable String myString) {
     this.myString = myString;
     return this;
   }
@@ -94,12 +97,12 @@ public class OuterComposite {
 
   @JsonProperty(JSON_PROPERTY_MY_STRING)
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
-  public void setMyString(String myString) {
+  public void setMyString(@javax.annotation.Nullable String myString) {
     this.myString = myString;
   }
 
 
-  public OuterComposite myBoolean(Boolean myBoolean) {
+  public OuterComposite myBoolean(@javax.annotation.Nullable Boolean myBoolean) {
     this.myBoolean = myBoolean;
     return this;
   }
@@ -119,7 +122,7 @@ public class OuterComposite {
 
   @JsonProperty(JSON_PROPERTY_MY_BOOLEAN)
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
-  public void setMyBoolean(Boolean myBoolean) {
+  public void setMyBoolean(@javax.annotation.Nullable Boolean myBoolean) {
     this.myBoolean = myBoolean;
   }
 

samples/openapi3/client/petstore/java/jersey2-java8/src/main/java/org/openapitools/client/model/Pet.java

@@ -44,18 +44,23 @@ import org.openapitools.client.JSON;
 @javax.annotation.Generated(value = "org.openapitools.codegen.languages.JavaClientCodegen", comments = "Generator version: 7.10.0-SNAPSHOT")
 public class Pet {
   public static final String JSON_PROPERTY_ID = "id";
+  @javax.annotation.Nullable
   private Long id;
 
   public static final String JSON_PROPERTY_CATEGORY = "category";
+  @javax.annotation.Nullable
   private Category category;
 
   public static final String JSON_PROPERTY_NAME = "name";
+  @javax.annotation.Nonnull
   private String name;
 
   public static final String JSON_PROPERTY_PHOTO_URLS = "photoUrls";
+  @javax.annotation.Nonnull
   private List<String> photoUrls = new ArrayList<>();
 
   public static final String JSON_PROPERTY_TAGS = "tags";
+  @javax.annotation.Nullable
   private List<Tag> tags = new ArrayList<>();
 
   /**
@@ -96,12 +101,13 @@ public class Pet {
   }
 
   public static final String JSON_PROPERTY_STATUS = "status";
+  @javax.annotation.Nullable
   private StatusEnum status;
 
   public Pet() { 
   }
 
-  public Pet id(Long id) {
+  public Pet id(@javax.annotation.Nullable Long id) {
     this.id = id;
     return this;
   }
@@ -121,12 +127,12 @@ public class Pet {
 
   @JsonProperty(JSON_PROPERTY_ID)
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
-  public void setId(Long id) {
+  public void setId(@javax.annotation.Nullable Long id) {
     this.id = id;
   }
 
 
-  public Pet category(Category category) {
+  public Pet category(@javax.annotation.Nullable Category category) {
     this.category = category;
     return this;
   }
@@ -146,12 +152,12 @@ public class Pet {
 
   @JsonProperty(JSON_PROPERTY_CATEGORY)
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
-  public void setCategory(Category category) {
+  public void setCategory(@javax.annotation.Nullable Category category) {
     this.category = category;
   }
 
 
-  public Pet name(String name) {
+  public Pet name(@javax.annotation.Nonnull String name) {
     this.name = name;
     return this;
   }
@@ -171,12 +177,12 @@ public class Pet {
 
   @JsonProperty(JSON_PROPERTY_NAME)
   @JsonInclude(value = JsonInclude.Include.ALWAYS)
-  public void setName(String name) {
+  public void setName(@javax.annotation.Nonnull String name) {
     this.name = name;
   }
 
 
-  public Pet photoUrls(List<String> photoUrls) {
+  public Pet photoUrls(@javax.annotation.Nonnull List<String> photoUrls) {
     this.photoUrls = photoUrls;
     return this;
   }
@@ -204,12 +210,12 @@ public class Pet {
 
   @JsonProperty(JSON_PROPERTY_PHOTO_URLS)
   @JsonInclude(value = JsonInclude.Include.ALWAYS)
-  public void setPhotoUrls(List<String> photoUrls) {
+  public void setPhotoUrls(@javax.annotation.Nonnull List<String> photoUrls) {
     this.photoUrls = photoUrls;
   }
 
 
-  public Pet tags(List<Tag> tags) {
+  public Pet tags(@javax.annotation.Nullable List<Tag> tags) {
     this.tags = tags;
     return this;
   }
@@ -237,12 +243,12 @@ public class Pet {
 
   @JsonProperty(JSON_PROPERTY_TAGS)
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
-  public void setTags(List<Tag> tags) {
+  public void setTags(@javax.annotation.Nullable List<Tag> tags) {
     this.tags = tags;
   }
 
 
-  public Pet status(StatusEnum status) {
+  public Pet status(@javax.annotation.Nullable StatusEnum status) {
     this.status = status;
     return this;
   }
@@ -262,7 +268,7 @@ public class Pet {
 
   @JsonProperty(JSON_PROPERTY_STATUS)
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
-  public void setStatus(StatusEnum status) {
+  public void setStatus(@javax.annotation.Nullable StatusEnum status) {
     this.status = status;
   }
 

samples/openapi3/client/petstore/java/jersey2-java8/src/main/java/org/openapitools/client/model/QuadrilateralInterface.java

@@ -35,12 +35,13 @@ import org.openapitools.client.JSON;
 @javax.annotation.Generated(value = "org.openapitools.codegen.languages.JavaClientCodegen", comments = "Generator version: 7.10.0-SNAPSHOT")
 public class QuadrilateralInterface {
   public static final String JSON_PROPERTY_QUADRILATERAL_TYPE = "quadrilateralType";
+  @javax.annotation.Nonnull
   private String quadrilateralType;
 
   public QuadrilateralInterface() { 
   }
 
-  public QuadrilateralInterface quadrilateralType(String quadrilateralType) {
+  public QuadrilateralInterface quadrilateralType(@javax.annotation.Nonnull String quadrilateralType) {
     this.quadrilateralType = quadrilateralType;
     return this;
   }
@@ -60,7 +61,7 @@ public class QuadrilateralInterface {
 
   @JsonProperty(JSON_PROPERTY_QUADRILATERAL_TYPE)
   @JsonInclude(value = JsonInclude.Include.ALWAYS)
-  public void setQuadrilateralType(String quadrilateralType) {
+  public void setQuadrilateralType(@javax.annotation.Nonnull String quadrilateralType) {
     this.quadrilateralType = quadrilateralType;
   }
 

samples/openapi3/client/petstore/java/jersey2-java8/src/main/java/org/openapitools/client/model/ReadOnlyFirst.java

@@ -36,9 +36,11 @@ import org.openapitools.client.JSON;
 @javax.annotation.Generated(value = "org.openapitools.codegen.languages.JavaClientCodegen", comments = "Generator version: 7.10.0-SNAPSHOT")
 public class ReadOnlyFirst {
   public static final String JSON_PROPERTY_BAR = "bar";
+  @javax.annotation.Nullable
   private String bar;
 
   public static final String JSON_PROPERTY_BAZ = "baz";
+  @javax.annotation.Nullable
   private String baz;
 
   public ReadOnlyFirst() { 
@@ -67,7 +69,7 @@ public class ReadOnlyFirst {
 
 
 
-  public ReadOnlyFirst baz(String baz) {
+  public ReadOnlyFirst baz(@javax.annotation.Nullable String baz) {
     this.baz = baz;
     return this;
   }
@@ -87,7 +89,7 @@ public class ReadOnlyFirst {
 
   @JsonProperty(JSON_PROPERTY_BAZ)
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
-  public void setBaz(String baz) {
+  public void setBaz(@javax.annotation.Nullable String baz) {
     this.baz = baz;
   }
 

samples/openapi3/client/petstore/java/jersey2-java8/src/main/java/org/openapitools/client/model/ScaleneTriangle.java

@@ -40,15 +40,17 @@ import org.openapitools.client.JSON;
 @javax.annotation.Generated(value = "org.openapitools.codegen.languages.JavaClientCodegen", comments = "Generator version: 7.10.0-SNAPSHOT")
 public class ScaleneTriangle {
   public static final String JSON_PROPERTY_SHAPE_TYPE = "shapeType";
+  @javax.annotation.Nonnull
   private String shapeType;
 
   public static final String JSON_PROPERTY_TRIANGLE_TYPE = "triangleType";
+  @javax.annotation.Nonnull
   private String triangleType;
 
   public ScaleneTriangle() { 
   }
 
-  public ScaleneTriangle shapeType(String shapeType) {
+  public ScaleneTriangle shapeType(@javax.annotation.Nonnull String shapeType) {
     this.shapeType = shapeType;
     return this;
   }
@@ -68,12 +70,12 @@ public class ScaleneTriangle {
 
   @JsonProperty(JSON_PROPERTY_SHAPE_TYPE)
   @JsonInclude(value = JsonInclude.Include.ALWAYS)
-  public void setShapeType(String shapeType) {
+  public void setShapeType(@javax.annotation.Nonnull String shapeType) {
     this.shapeType = shapeType;
   }
 
 
-  public ScaleneTriangle triangleType(String triangleType) {
+  public ScaleneTriangle triangleType(@javax.annotation.Nonnull String triangleType) {
     this.triangleType = triangleType;
     return this;
   }
@@ -93,7 +95,7 @@ public class ScaleneTriangle {
 
   @JsonProperty(JSON_PROPERTY_TRIANGLE_TYPE)
   @JsonInclude(value = JsonInclude.Include.ALWAYS)
-  public void setTriangleType(String triangleType) {
+  public void setTriangleType(@javax.annotation.Nonnull String triangleType) {
     this.triangleType = triangleType;
   }
 

samples/openapi3/client/petstore/java/jersey2-java8/src/main/java/org/openapitools/client/model/ShapeInterface.java

@@ -35,12 +35,13 @@ import org.openapitools.client.JSON;
 @javax.annotation.Generated(value = "org.openapitools.codegen.languages.JavaClientCodegen", comments = "Generator version: 7.10.0-SNAPSHOT")
 public class ShapeInterface {
   public static final String JSON_PROPERTY_SHAPE_TYPE = "shapeType";
+  @javax.annotation.Nonnull
   private String shapeType;
 
   public ShapeInterface() { 
   }
 
-  public ShapeInterface shapeType(String shapeType) {
+  public ShapeInterface shapeType(@javax.annotation.Nonnull String shapeType) {
     this.shapeType = shapeType;
     return this;
   }
@@ -60,7 +61,7 @@ public class ShapeInterface {
 
   @JsonProperty(JSON_PROPERTY_SHAPE_TYPE)
   @JsonInclude(value = JsonInclude.Include.ALWAYS)
-  public void setShapeType(String shapeType) {
+  public void setShapeType(@javax.annotation.Nonnull String shapeType) {
     this.shapeType = shapeType;
   }
 

samples/openapi3/client/petstore/java/jersey2-java8/src/main/java/org/openapitools/client/model/SimpleQuadrilateral.java

@@ -40,15 +40,17 @@ import org.openapitools.client.JSON;
 @javax.annotation.Generated(value = "org.openapitools.codegen.languages.JavaClientCodegen", comments = "Generator version: 7.10.0-SNAPSHOT")
 public class SimpleQuadrilateral {
   public static final String JSON_PROPERTY_SHAPE_TYPE = "shapeType";
+  @javax.annotation.Nonnull
   private String shapeType;
 
   public static final String JSON_PROPERTY_QUADRILATERAL_TYPE = "quadrilateralType";
+  @javax.annotation.Nonnull
   private String quadrilateralType;
 
   public SimpleQuadrilateral() { 
   }
 
-  public SimpleQuadrilateral shapeType(String shapeType) {
+  public SimpleQuadrilateral shapeType(@javax.annotation.Nonnull String shapeType) {
     this.shapeType = shapeType;
     return this;
   }
@@ -68,12 +70,12 @@ public class SimpleQuadrilateral {
 
   @JsonProperty(JSON_PROPERTY_SHAPE_TYPE)
   @JsonInclude(value = JsonInclude.Include.ALWAYS)
-  public void setShapeType(String shapeType) {
+  public void setShapeType(@javax.annotation.Nonnull String shapeType) {
     this.shapeType = shapeType;
   }
 
 
-  public SimpleQuadrilateral quadrilateralType(String quadrilateralType) {
+  public SimpleQuadrilateral quadrilateralType(@javax.annotation.Nonnull String quadrilateralType) {
     this.quadrilateralType = quadrilateralType;
     return this;
   }
@@ -93,7 +95,7 @@ public class SimpleQuadrilateral {
 
   @JsonProperty(JSON_PROPERTY_QUADRILATERAL_TYPE)
   @JsonInclude(value = JsonInclude.Include.ALWAYS)
-  public void setQuadrilateralType(String quadrilateralType) {
+  public void setQuadrilateralType(@javax.annotation.Nonnull String quadrilateralType) {
     this.quadrilateralType = quadrilateralType;
   }
 

samples/openapi3/client/petstore/java/jersey2-java8/src/main/java/org/openapitools/client/model/SpecialModelName.java

@@ -37,15 +37,17 @@ import org.openapitools.client.JSON;
 @javax.annotation.Generated(value = "org.openapitools.codegen.languages.JavaClientCodegen", comments = "Generator version: 7.10.0-SNAPSHOT")
 public class SpecialModelName {
   public static final String JSON_PROPERTY_$_SPECIAL_PROPERTY_NAME = "$special[property.name]";
+  @javax.annotation.Nullable
   private Long $specialPropertyName;
 
   public static final String JSON_PROPERTY_SPECIAL_MODEL_NAME = "_special_model.name_";
+  @javax.annotation.Nullable
   private String specialModelName;
 
   public SpecialModelName() { 
   }
 
-  public SpecialModelName $specialPropertyName(Long $specialPropertyName) {
+  public SpecialModelName $specialPropertyName(@javax.annotation.Nullable Long $specialPropertyName) {
     this.$specialPropertyName = $specialPropertyName;
     return this;
   }
@@ -65,12 +67,12 @@ public class SpecialModelName {
 
   @JsonProperty(JSON_PROPERTY_$_SPECIAL_PROPERTY_NAME)
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
-  public void set$SpecialPropertyName(Long $specialPropertyName) {
+  public void set$SpecialPropertyName(@javax.annotation.Nullable Long $specialPropertyName) {
     this.$specialPropertyName = $specialPropertyName;
   }
 
 
-  public SpecialModelName specialModelName(String specialModelName) {
+  public SpecialModelName specialModelName(@javax.annotation.Nullable String specialModelName) {
     this.specialModelName = specialModelName;
     return this;
   }
@@ -90,7 +92,7 @@ public class SpecialModelName {
 
   @JsonProperty(JSON_PROPERTY_SPECIAL_MODEL_NAME)
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
-  public void setSpecialModelName(String specialModelName) {
+  public void setSpecialModelName(@javax.annotation.Nullable String specialModelName) {
     this.specialModelName = specialModelName;
   }
 

samples/openapi3/client/petstore/java/jersey2-java8/src/main/java/org/openapitools/client/model/Tag.java

@@ -36,15 +36,17 @@ import org.openapitools.client.JSON;
 @javax.annotation.Generated(value = "org.openapitools.codegen.languages.JavaClientCodegen", comments = "Generator version: 7.10.0-SNAPSHOT")
 public class Tag {
   public static final String JSON_PROPERTY_ID = "id";
+  @javax.annotation.Nullable
   private Long id;
 
   public static final String JSON_PROPERTY_NAME = "name";
+  @javax.annotation.Nullable
   private String name;
 
   public Tag() { 
   }
 
-  public Tag id(Long id) {
+  public Tag id(@javax.annotation.Nullable Long id) {
     this.id = id;
     return this;
   }
@@ -64,12 +66,12 @@ public class Tag {
 
   @JsonProperty(JSON_PROPERTY_ID)
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
-  public void setId(Long id) {
+  public void setId(@javax.annotation.Nullable Long id) {
     this.id = id;
   }
 
 
-  public Tag name(String name) {
+  public Tag name(@javax.annotation.Nullable String name) {
     this.name = name;
     return this;
   }
@@ -89,7 +91,7 @@ public class Tag {
 
   @JsonProperty(JSON_PROPERTY_NAME)
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
-  public void setName(String name) {
+  public void setName(@javax.annotation.Nullable String name) {
     this.name = name;
   }
 

samples/openapi3/client/petstore/java/jersey2-java8/src/main/java/org/openapitools/client/model/TestInlineFreeformAdditionalPropertiesRequest.java

@@ -40,12 +40,13 @@ import org.openapitools.client.JSON;
 @javax.annotation.Generated(value = "org.openapitools.codegen.languages.JavaClientCodegen", comments = "Generator version: 7.10.0-SNAPSHOT")
 public class TestInlineFreeformAdditionalPropertiesRequest {
   public static final String JSON_PROPERTY_SOME_PROPERTY = "someProperty";
+  @javax.annotation.Nullable
   private String someProperty;
 
   public TestInlineFreeformAdditionalPropertiesRequest() { 
   }
 
-  public TestInlineFreeformAdditionalPropertiesRequest someProperty(String someProperty) {
+  public TestInlineFreeformAdditionalPropertiesRequest someProperty(@javax.annotation.Nullable String someProperty) {
     this.someProperty = someProperty;
     return this;
   }
@@ -65,7 +66,7 @@ public class TestInlineFreeformAdditionalPropertiesRequest {
 
   @JsonProperty(JSON_PROPERTY_SOME_PROPERTY)
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
-  public void setSomeProperty(String someProperty) {
+  public void setSomeProperty(@javax.annotation.Nullable String someProperty) {
     this.someProperty = someProperty;
   }
 

samples/openapi3/client/petstore/java/jersey2-java8/src/main/java/org/openapitools/client/model/TriangleInterface.java

@@ -35,12 +35,13 @@ import org.openapitools.client.JSON;
 @javax.annotation.Generated(value = "org.openapitools.codegen.languages.JavaClientCodegen", comments = "Generator version: 7.10.0-SNAPSHOT")
 public class TriangleInterface {
   public static final String JSON_PROPERTY_TRIANGLE_TYPE = "triangleType";
+  @javax.annotation.Nonnull
   private String triangleType;
 
   public TriangleInterface() { 
   }
 
-  public TriangleInterface triangleType(String triangleType) {
+  public TriangleInterface triangleType(@javax.annotation.Nonnull String triangleType) {
     this.triangleType = triangleType;
     return this;
   }
@@ -60,7 +61,7 @@ public class TriangleInterface {
 
   @JsonProperty(JSON_PROPERTY_TRIANGLE_TYPE)
   @JsonInclude(value = JsonInclude.Include.ALWAYS)
-  public void setTriangleType(String triangleType) {
+  public void setTriangleType(@javax.annotation.Nonnull String triangleType) {
     this.triangleType = triangleType;
   }
 

samples/openapi3/client/petstore/java/jersey2-java8/src/main/java/org/openapitools/client/model/User.java

@@ -50,30 +50,39 @@ import org.openapitools.client.JSON;
 @javax.annotation.Generated(value = "org.openapitools.codegen.languages.JavaClientCodegen", comments = "Generator version: 7.10.0-SNAPSHOT")
 public class User {
   public static final String JSON_PROPERTY_ID = "id";
+  @javax.annotation.Nullable
   private Long id;
 
   public static final String JSON_PROPERTY_USERNAME = "username";
+  @javax.annotation.Nullable
   private String username;
 
   public static final String JSON_PROPERTY_FIRST_NAME = "firstName";
+  @javax.annotation.Nullable
   private String firstName;
 
   public static final String JSON_PROPERTY_LAST_NAME = "lastName";
+  @javax.annotation.Nullable
   private String lastName;
 
   public static final String JSON_PROPERTY_EMAIL = "email";
+  @javax.annotation.Nullable
   private String email;
 
   public static final String JSON_PROPERTY_PASSWORD = "password";
+  @javax.annotation.Nullable
   private String password;
 
   public static final String JSON_PROPERTY_PHONE = "phone";
+  @javax.annotation.Nullable
   private String phone;
 
   public static final String JSON_PROPERTY_USER_STATUS = "userStatus";
+  @javax.annotation.Nullable
   private Integer userStatus;
 
   public static final String JSON_PROPERTY_OBJECT_WITH_NO_DECLARED_PROPS = "objectWithNoDeclaredProps";
+  @javax.annotation.Nullable
   private Object objectWithNoDeclaredProps;
 
   public static final String JSON_PROPERTY_OBJECT_WITH_NO_DECLARED_PROPS_NULLABLE = "objectWithNoDeclaredPropsNullable";
@@ -88,7 +97,7 @@ public class User {
   public User() { 
   }
 
-  public User id(Long id) {
+  public User id(@javax.annotation.Nullable Long id) {
     this.id = id;
     return this;
   }
@@ -108,12 +117,12 @@ public class User {
 
   @JsonProperty(JSON_PROPERTY_ID)
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
-  public void setId(Long id) {
+  public void setId(@javax.annotation.Nullable Long id) {
     this.id = id;
   }
 
 
-  public User username(String username) {
+  public User username(@javax.annotation.Nullable String username) {
     this.username = username;
     return this;
   }
@@ -133,12 +142,12 @@ public class User {
 
   @JsonProperty(JSON_PROPERTY_USERNAME)
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
-  public void setUsername(String username) {
+  public void setUsername(@javax.annotation.Nullable String username) {
     this.username = username;
   }
 
 
-  public User firstName(String firstName) {
+  public User firstName(@javax.annotation.Nullable String firstName) {
     this.firstName = firstName;
     return this;
   }
@@ -158,12 +167,12 @@ public class User {
 
   @JsonProperty(JSON_PROPERTY_FIRST_NAME)
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
-  public void setFirstName(String firstName) {
+  public void setFirstName(@javax.annotation.Nullable String firstName) {
     this.firstName = firstName;
   }
 
 
-  public User lastName(String lastName) {
+  public User lastName(@javax.annotation.Nullable String lastName) {
     this.lastName = lastName;
     return this;
   }
@@ -183,12 +192,12 @@ public class User {
 
   @JsonProperty(JSON_PROPERTY_LAST_NAME)
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
-  public void setLastName(String lastName) {
+  public void setLastName(@javax.annotation.Nullable String lastName) {
     this.lastName = lastName;
   }
 
 
-  public User email(String email) {
+  public User email(@javax.annotation.Nullable String email) {
     this.email = email;
     return this;
   }
@@ -208,12 +217,12 @@ public class User {
 
   @JsonProperty(JSON_PROPERTY_EMAIL)
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
-  public void setEmail(String email) {
+  public void setEmail(@javax.annotation.Nullable String email) {
     this.email = email;
   }
 
 
-  public User password(String password) {
+  public User password(@javax.annotation.Nullable String password) {
     this.password = password;
     return this;
   }
@@ -233,12 +242,12 @@ public class User {
 
   @JsonProperty(JSON_PROPERTY_PASSWORD)
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
-  public void setPassword(String password) {
+  public void setPassword(@javax.annotation.Nullable String password) {
     this.password = password;
   }
 
 
-  public User phone(String phone) {
+  public User phone(@javax.annotation.Nullable String phone) {
     this.phone = phone;
     return this;
   }
@@ -258,12 +267,12 @@ public class User {
 
   @JsonProperty(JSON_PROPERTY_PHONE)
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
-  public void setPhone(String phone) {
+  public void setPhone(@javax.annotation.Nullable String phone) {
     this.phone = phone;
   }
 
 
-  public User userStatus(Integer userStatus) {
+  public User userStatus(@javax.annotation.Nullable Integer userStatus) {
     this.userStatus = userStatus;
     return this;
   }
@@ -283,12 +292,12 @@ public class User {
 
   @JsonProperty(JSON_PROPERTY_USER_STATUS)
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
-  public void setUserStatus(Integer userStatus) {
+  public void setUserStatus(@javax.annotation.Nullable Integer userStatus) {
     this.userStatus = userStatus;
   }
 
 
-  public User objectWithNoDeclaredProps(Object objectWithNoDeclaredProps) {
+  public User objectWithNoDeclaredProps(@javax.annotation.Nullable Object objectWithNoDeclaredProps) {
     this.objectWithNoDeclaredProps = objectWithNoDeclaredProps;
     return this;
   }
@@ -308,12 +317,12 @@ public class User {
 
   @JsonProperty(JSON_PROPERTY_OBJECT_WITH_NO_DECLARED_PROPS)
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
-  public void setObjectWithNoDeclaredProps(Object objectWithNoDeclaredProps) {
+  public void setObjectWithNoDeclaredProps(@javax.annotation.Nullable Object objectWithNoDeclaredProps) {
     this.objectWithNoDeclaredProps = objectWithNoDeclaredProps;
   }
 
 
-  public User objectWithNoDeclaredPropsNullable(Object objectWithNoDeclaredPropsNullable) {
+  public User objectWithNoDeclaredPropsNullable(@javax.annotation.Nullable Object objectWithNoDeclaredPropsNullable) {
     this.objectWithNoDeclaredPropsNullable = JsonNullable.<Object>of(objectWithNoDeclaredPropsNullable);
     return this;
   }
@@ -341,12 +350,12 @@ public class User {
     this.objectWithNoDeclaredPropsNullable = objectWithNoDeclaredPropsNullable;
   }
 
-  public void setObjectWithNoDeclaredPropsNullable(Object objectWithNoDeclaredPropsNullable) {
+  public void setObjectWithNoDeclaredPropsNullable(@javax.annotation.Nullable Object objectWithNoDeclaredPropsNullable) {
     this.objectWithNoDeclaredPropsNullable = JsonNullable.<Object>of(objectWithNoDeclaredPropsNullable);
   }
 
 
-  public User anyTypeProp(Object anyTypeProp) {
+  public User anyTypeProp(@javax.annotation.Nullable Object anyTypeProp) {
     this.anyTypeProp = JsonNullable.<Object>of(anyTypeProp);
     return this;
   }
@@ -374,12 +383,12 @@ public class User {
     this.anyTypeProp = anyTypeProp;
   }
 
-  public void setAnyTypeProp(Object anyTypeProp) {
+  public void setAnyTypeProp(@javax.annotation.Nullable Object anyTypeProp) {
     this.anyTypeProp = JsonNullable.<Object>of(anyTypeProp);
   }
 
 
-  public User anyTypePropNullable(Object anyTypePropNullable) {
+  public User anyTypePropNullable(@javax.annotation.Nullable Object anyTypePropNullable) {
     this.anyTypePropNullable = JsonNullable.<Object>of(anyTypePropNullable);
     return this;
   }
@@ -407,7 +416,7 @@ public class User {
     this.anyTypePropNullable = anyTypePropNullable;
   }
 
-  public void setAnyTypePropNullable(Object anyTypePropNullable) {
+  public void setAnyTypePropNullable(@javax.annotation.Nullable Object anyTypePropNullable) {
     this.anyTypePropNullable = JsonNullable.<Object>of(anyTypePropNullable);
   }
 

samples/openapi3/client/petstore/java/jersey2-java8/src/main/java/org/openapitools/client/model/Whale.java

@@ -38,18 +38,21 @@ import org.openapitools.client.JSON;
 @javax.annotation.Generated(value = "org.openapitools.codegen.languages.JavaClientCodegen", comments = "Generator version: 7.10.0-SNAPSHOT")
 public class Whale {
   public static final String JSON_PROPERTY_HAS_BALEEN = "hasBaleen";
+  @javax.annotation.Nullable
   private Boolean hasBaleen;
 
   public static final String JSON_PROPERTY_HAS_TEETH = "hasTeeth";
+  @javax.annotation.Nullable
   private Boolean hasTeeth;
 
   public static final String JSON_PROPERTY_CLASS_NAME = "className";
+  @javax.annotation.Nonnull
   private String className;
 
   public Whale() { 
   }
 
-  public Whale hasBaleen(Boolean hasBaleen) {
+  public Whale hasBaleen(@javax.annotation.Nullable Boolean hasBaleen) {
     this.hasBaleen = hasBaleen;
     return this;
   }
@@ -69,12 +72,12 @@ public class Whale {
 
   @JsonProperty(JSON_PROPERTY_HAS_BALEEN)
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
-  public void setHasBaleen(Boolean hasBaleen) {
+  public void setHasBaleen(@javax.annotation.Nullable Boolean hasBaleen) {
     this.hasBaleen = hasBaleen;
   }
 
 
-  public Whale hasTeeth(Boolean hasTeeth) {
+  public Whale hasTeeth(@javax.annotation.Nullable Boolean hasTeeth) {
     this.hasTeeth = hasTeeth;
     return this;
   }
@@ -94,12 +97,12 @@ public class Whale {
 
   @JsonProperty(JSON_PROPERTY_HAS_TEETH)
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
-  public void setHasTeeth(Boolean hasTeeth) {
+  public void setHasTeeth(@javax.annotation.Nullable Boolean hasTeeth) {
     this.hasTeeth = hasTeeth;
   }
 
 
-  public Whale className(String className) {
+  public Whale className(@javax.annotation.Nonnull String className) {
     this.className = className;
     return this;
   }
@@ -119,7 +122,7 @@ public class Whale {
 
   @JsonProperty(JSON_PROPERTY_CLASS_NAME)
   @JsonInclude(value = JsonInclude.Include.ALWAYS)
-  public void setClassName(String className) {
+  public void setClassName(@javax.annotation.Nonnull String className) {
     this.className = className;
   }
 

samples/openapi3/client/petstore/java/jersey2-java8/src/main/java/org/openapitools/client/model/Zebra.java

@@ -78,15 +78,17 @@ public class Zebra {
   }
 
   public static final String JSON_PROPERTY_TYPE = "type";
+  @javax.annotation.Nullable
   private TypeEnum type;
 
   public static final String JSON_PROPERTY_CLASS_NAME = "className";
+  @javax.annotation.Nonnull
   private String className;
 
   public Zebra() { 
   }
 
-  public Zebra type(TypeEnum type) {
+  public Zebra type(@javax.annotation.Nullable TypeEnum type) {
     this.type = type;
     return this;
   }
@@ -106,12 +108,12 @@ public class Zebra {
 
   @JsonProperty(JSON_PROPERTY_TYPE)
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
-  public void setType(TypeEnum type) {
+  public void setType(@javax.annotation.Nullable TypeEnum type) {
     this.type = type;
   }
 
 
-  public Zebra className(String className) {
+  public Zebra className(@javax.annotation.Nonnull String className) {
     this.className = className;
     return this;
   }
@@ -131,7 +133,7 @@ public class Zebra {
 
   @JsonProperty(JSON_PROPERTY_CLASS_NAME)
   @JsonInclude(value = JsonInclude.Include.ALWAYS)
-  public void setClassName(String className) {
+  public void setClassName(@javax.annotation.Nonnull String className) {
     this.className = className;
   }