[Java] Add @javax.annotation.Nonnull to required getters (#9593)

* Add @javax.annotation.Nonnull to required getters

* Add updated samples

* Consider the nullable constraint

samples/client/petstore/java/vertx-no-nullable/src/main/java/org/openapitools/client/model/Animal.java

@@ -63,6 +63,7 @@ public class Animal {
    * Get className
    * @return className
   **/
+  @javax.annotation.Nonnull
   @ApiModelProperty(required = true, value = "")
   @JsonProperty(JSON_PROPERTY_CLASS_NAME)
   @JsonInclude(value = JsonInclude.Include.ALWAYS)

samples/client/petstore/java/vertx-no-nullable/src/main/java/org/openapitools/client/model/Category.java

@@ -78,6 +78,7 @@ public class Category {
    * Get name
    * @return name
   **/
+  @javax.annotation.Nonnull
   @ApiModelProperty(required = true, value = "")
   @JsonProperty(JSON_PROPERTY_NAME)
   @JsonInclude(value = JsonInclude.Include.ALWAYS)

samples/client/petstore/java/vertx-no-nullable/src/main/java/org/openapitools/client/model/EnumTest.java

@@ -235,6 +235,7 @@ public class EnumTest {
    * Get enumStringRequired
    * @return enumStringRequired
   **/
+  @javax.annotation.Nonnull
   @ApiModelProperty(required = true, value = "")
   @JsonProperty(JSON_PROPERTY_ENUM_STRING_REQUIRED)
   @JsonInclude(value = JsonInclude.Include.ALWAYS)

samples/client/petstore/java/vertx-no-nullable/src/main/java/org/openapitools/client/model/FormatTest.java

@@ -191,6 +191,7 @@ public class FormatTest {
    * maximum: 543.2
    * @return number
   **/
+  @javax.annotation.Nonnull
   @ApiModelProperty(required = true, value = "")
   @JsonProperty(JSON_PROPERTY_NUMBER)
   @JsonInclude(value = JsonInclude.Include.ALWAYS)
@@ -302,6 +303,7 @@ public class FormatTest {
    * Get _byte
    * @return _byte
   **/
+  @javax.annotation.Nonnull
   @ApiModelProperty(required = true, value = "")
   @JsonProperty(JSON_PROPERTY_BYTE)
   @JsonInclude(value = JsonInclude.Include.ALWAYS)
@@ -355,6 +357,7 @@ public class FormatTest {
    * Get date
    * @return date
   **/
+  @javax.annotation.Nonnull
   @ApiModelProperty(required = true, value = "")
   @JsonProperty(JSON_PROPERTY_DATE)
   @JsonInclude(value = JsonInclude.Include.ALWAYS)
@@ -435,6 +438,7 @@ public class FormatTest {
    * Get password
    * @return password
   **/
+  @javax.annotation.Nonnull
   @ApiModelProperty(required = true, value = "")
   @JsonProperty(JSON_PROPERTY_PASSWORD)
   @JsonInclude(value = JsonInclude.Include.ALWAYS)

samples/client/petstore/java/vertx-no-nullable/src/main/java/org/openapitools/client/model/Name.java

@@ -60,6 +60,7 @@ public class Name {
    * Get name
    * @return name
   **/
+  @javax.annotation.Nonnull
   @ApiModelProperty(required = true, value = "")
   @JsonProperty(JSON_PROPERTY_NAME)
   @JsonInclude(value = JsonInclude.Include.ALWAYS)

samples/client/petstore/java/vertx-no-nullable/src/main/java/org/openapitools/client/model/Pet.java

@@ -164,6 +164,7 @@ public class Pet {
    * Get name
    * @return name
   **/
+  @javax.annotation.Nonnull
   @ApiModelProperty(example = "doggie", required = true, value = "")
   @JsonProperty(JSON_PROPERTY_NAME)
   @JsonInclude(value = JsonInclude.Include.ALWAYS)
@@ -195,6 +196,7 @@ public class Pet {
    * Get photoUrls
    * @return photoUrls
   **/
+  @javax.annotation.Nonnull
   @ApiModelProperty(required = true, value = "")
   @JsonProperty(JSON_PROPERTY_PHOTO_URLS)
   @JsonInclude(value = JsonInclude.Include.ALWAYS)

samples/client/petstore/java/vertx-no-nullable/src/main/java/org/openapitools/client/model/TypeHolderDefault.java

@@ -66,6 +66,7 @@ public class TypeHolderDefault {
    * Get stringItem
    * @return stringItem
   **/
+  @javax.annotation.Nonnull
   @ApiModelProperty(required = true, value = "")
   @JsonProperty(JSON_PROPERTY_STRING_ITEM)
   @JsonInclude(value = JsonInclude.Include.ALWAYS)
@@ -92,6 +93,7 @@ public class TypeHolderDefault {
    * Get numberItem
    * @return numberItem
   **/
+  @javax.annotation.Nonnull
   @ApiModelProperty(required = true, value = "")
   @JsonProperty(JSON_PROPERTY_NUMBER_ITEM)
   @JsonInclude(value = JsonInclude.Include.ALWAYS)
@@ -118,6 +120,7 @@ public class TypeHolderDefault {
    * Get integerItem
    * @return integerItem
   **/
+  @javax.annotation.Nonnull
   @ApiModelProperty(required = true, value = "")
   @JsonProperty(JSON_PROPERTY_INTEGER_ITEM)
   @JsonInclude(value = JsonInclude.Include.ALWAYS)
@@ -144,6 +147,7 @@ public class TypeHolderDefault {
    * Get boolItem
    * @return boolItem
   **/
+  @javax.annotation.Nonnull
   @ApiModelProperty(required = true, value = "")
   @JsonProperty(JSON_PROPERTY_BOOL_ITEM)
   @JsonInclude(value = JsonInclude.Include.ALWAYS)
@@ -175,6 +179,7 @@ public class TypeHolderDefault {
    * Get arrayItem
    * @return arrayItem
   **/
+  @javax.annotation.Nonnull
   @ApiModelProperty(required = true, value = "")
   @JsonProperty(JSON_PROPERTY_ARRAY_ITEM)
   @JsonInclude(value = JsonInclude.Include.ALWAYS)

samples/client/petstore/java/vertx-no-nullable/src/main/java/org/openapitools/client/model/TypeHolderExample.java

@@ -70,6 +70,7 @@ public class TypeHolderExample {
    * Get stringItem
    * @return stringItem
   **/
+  @javax.annotation.Nonnull
   @ApiModelProperty(example = "what", required = true, value = "")
   @JsonProperty(JSON_PROPERTY_STRING_ITEM)
   @JsonInclude(value = JsonInclude.Include.ALWAYS)
@@ -96,6 +97,7 @@ public class TypeHolderExample {
    * Get numberItem
    * @return numberItem
   **/
+  @javax.annotation.Nonnull
   @ApiModelProperty(example = "1.234", required = true, value = "")
   @JsonProperty(JSON_PROPERTY_NUMBER_ITEM)
   @JsonInclude(value = JsonInclude.Include.ALWAYS)
@@ -122,6 +124,7 @@ public class TypeHolderExample {
    * Get floatItem
    * @return floatItem
   **/
+  @javax.annotation.Nonnull
   @ApiModelProperty(example = "1.234", required = true, value = "")
   @JsonProperty(JSON_PROPERTY_FLOAT_ITEM)
   @JsonInclude(value = JsonInclude.Include.ALWAYS)
@@ -148,6 +151,7 @@ public class TypeHolderExample {
    * Get integerItem
    * @return integerItem
   **/
+  @javax.annotation.Nonnull
   @ApiModelProperty(example = "-2", required = true, value = "")
   @JsonProperty(JSON_PROPERTY_INTEGER_ITEM)
   @JsonInclude(value = JsonInclude.Include.ALWAYS)
@@ -174,6 +178,7 @@ public class TypeHolderExample {
    * Get boolItem
    * @return boolItem
   **/
+  @javax.annotation.Nonnull
   @ApiModelProperty(example = "true", required = true, value = "")
   @JsonProperty(JSON_PROPERTY_BOOL_ITEM)
   @JsonInclude(value = JsonInclude.Include.ALWAYS)
@@ -205,6 +210,7 @@ public class TypeHolderExample {
    * Get arrayItem
    * @return arrayItem
   **/
+  @javax.annotation.Nonnull
   @ApiModelProperty(example = "[0, 1, 2, 3]", required = true, value = "")
   @JsonProperty(JSON_PROPERTY_ARRAY_ITEM)
   @JsonInclude(value = JsonInclude.Include.ALWAYS)