[java] implement #18032 add builder pattern to java client and spring generator (#18650)

* add builder pattern to java client and spring generator

* regenerate samples

* update doc

---------

Co-authored-by: jpfinne <jeanpaul@finne.be>

samples/client/petstore/spring-http-interface/src/main/java/org/openapitools/model/AnimalDto.java

@@ -38,6 +38,10 @@ public class AnimalDto {
 
   private String color = "red";
 
+  public AnimalDto() {
+    super();
+  }
+
   public AnimalDto className(String className) {
     this.className = className;
     return this;

samples/client/petstore/spring-http-interface/src/main/java/org/openapitools/model/BigCatDto.java

@@ -68,6 +68,10 @@ public class BigCatDto extends CatDto {
 
   private KindEnum kind;
 
+  public BigCatDto() {
+    super();
+  }
+
   public BigCatDto kind(KindEnum kind) {
     this.kind = kind;
     return this;

samples/client/petstore/spring-http-interface/src/main/java/org/openapitools/model/CatDto.java

@@ -35,6 +35,10 @@ public class CatDto extends AnimalDto {
 
   private Boolean declawed;
 
+  public CatDto() {
+    super();
+  }
+
   public CatDto declawed(Boolean declawed) {
     this.declawed = declawed;
     return this;

samples/client/petstore/spring-http-interface/src/main/java/org/openapitools/model/CategoryDto.java

@@ -25,6 +25,10 @@ public class CategoryDto {
 
   private String name = "default-name";
 
+  public CategoryDto() {
+    super();
+  }
+
   public CategoryDto id(Long id) {
     this.id = id;
     return this;

samples/client/petstore/spring-http-interface/src/main/java/org/openapitools/model/ContainerDefaultValueDto.java

@@ -38,6 +38,10 @@ public class ContainerDefaultValueDto {
   
   private JsonNullable<List<String>> nullableArrayWithDefault = JsonNullable.<List<String>>undefined();
 
+  public ContainerDefaultValueDto() {
+    super();
+  }
+
   public ContainerDefaultValueDto nullableArray(List<String> nullableArray) {
     this.nullableArray = JsonNullable.of(nullableArray);
     return this;

samples/client/petstore/spring-http-interface/src/main/java/org/openapitools/model/DogDto.java

@@ -28,6 +28,10 @@ public class DogDto extends AnimalDto {
 
   private String breed;
 
+  public DogDto() {
+    super();
+  }
+
   public DogDto breed(String breed) {
     this.breed = breed;
     return this;

samples/client/petstore/spring-http-interface/src/main/java/org/openapitools/model/EnumTestDto.java

@@ -177,6 +177,10 @@ public class EnumTestDto {
 
   private OuterEnumDto outerEnum;
 
+  public EnumTestDto() {
+    super();
+  }
+
   public EnumTestDto enumString(EnumStringEnum enumString) {
     this.enumString = enumString;
     return this;

samples/client/petstore/spring-http-interface/src/main/java/org/openapitools/model/FormatTestDto.java

@@ -57,6 +57,10 @@ public class FormatTestDto {
 
   private BigDecimal bigDecimal;
 
+  public FormatTestDto() {
+    super();
+  }
+
   public FormatTestDto integer(Integer integer) {
     this.integer = integer;
     return this;

samples/client/petstore/spring-http-interface/src/main/java/org/openapitools/model/NameDto.java

@@ -29,6 +29,10 @@ public class NameDto {
 
   private Integer _123number;
 
+  public NameDto() {
+    super();
+  }
+
   public NameDto name(Integer name) {
     this.name = name;
     return this;

samples/client/petstore/spring-http-interface/src/main/java/org/openapitools/model/PetDto.java

@@ -82,6 +82,10 @@ public class PetDto {
   @Deprecated
   private StatusEnum status;
 
+  public PetDto() {
+    super();
+  }
+
   public PetDto id(Long id) {
     this.id = id;
     return this;

samples/client/petstore/spring-http-interface/src/main/java/org/openapitools/model/TypeHolderDefaultDto.java

@@ -36,6 +36,10 @@ public class TypeHolderDefaultDto {
   
   private List<Integer> arrayItem = new ArrayList<>(Arrays.asList(0, 1, 2, 3));
 
+  public TypeHolderDefaultDto() {
+    super();
+  }
+
   public TypeHolderDefaultDto stringItem(String stringItem) {
     this.stringItem = stringItem;
     return this;

samples/client/petstore/spring-http-interface/src/main/java/org/openapitools/model/TypeHolderExampleDto.java

@@ -38,6 +38,10 @@ public class TypeHolderExampleDto {
   
   private List<Integer> arrayItem = new ArrayList<>();
 
+  public TypeHolderExampleDto() {
+    super();
+  }
+
   public TypeHolderExampleDto stringItem(String stringItem) {
     this.stringItem = stringItem;
     return this;