improve java enums (#19815)

samples/client/petstore/java/feign-no-nullable/src/main/java/org/openapitools/client/model/BigCat.java

@@ -46,13 +46,13 @@ public class BigCat extends Cat {
    * Gets or Sets kind
    */
   public enum KindEnum {
-    LIONS("lions"),
+    LIONS(String.valueOf("lions")),
     
-    TIGERS("tigers"),
+    TIGERS(String.valueOf("tigers")),
     
-    LEOPARDS("leopards"),
+    LEOPARDS(String.valueOf("leopards")),
     
-    JAGUARS("jaguars");
+    JAGUARS(String.valueOf("jaguars"));
 
     private String value;
 

samples/client/petstore/java/feign-no-nullable/src/main/java/org/openapitools/client/model/EnumArrays.java

@@ -40,9 +40,9 @@ public class EnumArrays {
    * Gets or Sets justSymbol
    */
   public enum JustSymbolEnum {
-    GREATER_THAN_OR_EQUAL_TO(">="),
+    GREATER_THAN_OR_EQUAL_TO(String.valueOf(">=")),
     
-    DOLLAR("$");
+    DOLLAR(String.valueOf("$"));
 
     private String value;
 
@@ -78,9 +78,9 @@ public class EnumArrays {
    * Gets or Sets arrayEnum
    */
   public enum ArrayEnumEnum {
-    FISH("fish"),
+    FISH(String.valueOf("fish")),
     
-    CRAB("crab");
+    CRAB(String.valueOf("crab"));
 
     private String value;
 

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

@@ -42,11 +42,11 @@ public class EnumTest {
    * Gets or Sets enumString
    */
   public enum EnumStringEnum {
-    UPPER("UPPER"),
+    UPPER(String.valueOf("UPPER")),
     
-    LOWER("lower"),
+    LOWER(String.valueOf("lower")),
     
-    EMPTY("");
+    EMPTY(String.valueOf(""));
 
     private String value;
 
@@ -82,11 +82,11 @@ public class EnumTest {
    * Gets or Sets enumStringRequired
    */
   public enum EnumStringRequiredEnum {
-    UPPER("UPPER"),
+    UPPER(String.valueOf("UPPER")),
     
-    LOWER("lower"),
+    LOWER(String.valueOf("lower")),
     
-    EMPTY("");
+    EMPTY(String.valueOf(""));
 
     private String value;
 
@@ -122,9 +122,9 @@ public class EnumTest {
    * Gets or Sets enumInteger
    */
   public enum EnumIntegerEnum {
-    NUMBER_1(1),
+    NUMBER_1(Integer.valueOf(1)),
     
-    NUMBER_MINUS_1(-1);
+    NUMBER_MINUS_1(Integer.valueOf(-1));
 
     private Integer value;
 
@@ -160,9 +160,9 @@ public class EnumTest {
    * Gets or Sets enumNumber
    */
   public enum EnumNumberEnum {
-    NUMBER_1_DOT_1(1.1),
+    NUMBER_1_DOT_1(Double.valueOf(1.1)),
     
-    NUMBER_MINUS_1_DOT_2(-1.2);
+    NUMBER_MINUS_1_DOT_2(Double.valueOf(-1.2));
 
     private Double value;
 

samples/client/petstore/java/feign-no-nullable/src/main/java/org/openapitools/client/model/MapTest.java

@@ -44,9 +44,9 @@ public class MapTest {
    * Gets or Sets inner
    */
   public enum InnerEnum {
-    UPPER("UPPER"),
+    UPPER(String.valueOf("UPPER")),
     
-    LOWER("lower");
+    LOWER(String.valueOf("lower"));
 
     private String value;
 

samples/client/petstore/java/feign-no-nullable/src/main/java/org/openapitools/client/model/Order.java

@@ -54,11 +54,11 @@ public class Order {
    * Order Status
    */
   public enum StatusEnum {
-    PLACED("placed"),
+    PLACED(String.valueOf("placed")),
     
-    APPROVED("approved"),
+    APPROVED(String.valueOf("approved")),
     
-    DELIVERED("delivered");
+    DELIVERED(String.valueOf("delivered"));
 
     private String value;
 

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

@@ -64,11 +64,11 @@ public class Pet {
    * pet status in the store
    */
   public enum StatusEnum {
-    AVAILABLE("available"),
+    AVAILABLE(String.valueOf("available")),
     
-    PENDING("pending"),
+    PENDING(String.valueOf("pending")),
     
-    SOLD("sold");
+    SOLD(String.valueOf("sold"));
 
     private String value;