fix(java-spring): handle UUID type in enum values generation (#23589)

Co-authored-by: Renato Mameli <renato.mameli@teamviewer.com>
Co-authored-by: William Cheng <wing328hk@gmail.com>

Author: 3 people

modules/openapi-generator/src/main/java/org/openapitools/codegen/languages/AbstractJavaCodegen.java

@@ -2332,6 +2332,8 @@ public String toEnumValue(String value, String datatype) {
             return "new BigDecimal(\"" + value + "\")";
         } else if ("URI".equals(datatype)) {
             return "URI.create(\"" + escapeText(value) + "\")";
+        } else if ("UUID".equals(datatype)) {
+            return "UUID.fromString(\"" + escapeText(value) + "\")";
         } else {
             return "\"" + escapeText(value) + "\"";
         }

modules/openapi-generator/src/test/java/org/openapitools/codegen/java/spring/SpringCodegenTest.java

@@ -3125,6 +3125,16 @@ public void contractWithResolvedInnerEnumContainsEnumConverter() throws IOExcept
                 .assertMethod("ponyTypeConverter");
     }
 
+    @Test
+    public void contractWithUuidEnumShouldGenerateValidEnum() throws IOException {
+        Map<String, File> output = generateFromContract("src/test/resources/3_0/enum_uuid.yaml", SPRING_BOOT);
+
+        JavaFileAssert.assertThat(output.get("ExampleUuidEnum.java"))
+                .fileContains("UUID.fromString(\"d6a8f2b0-1c34-4e56-a789-0abcdef12345\")")
+                .fileContains("UUID.fromString(\"e7b9c3d1-2d45-5f67-b890-1bcdef023456\")")
+                .fileContains("private final UUID value");
+    }
+
     @Test
     public void shouldUseTheSameTagNameForTheInterfaceAndTheMethod_issue11570() throws IOException {
         final Map<String, File> output = generateFromContract(

modules/openapi-generator/src/test/resources/3_0/enum_uuid.yaml

@@ -30,4 +30,3 @@ components:
       enum:
         - "d6a8f2b0-1c34-4e56-a789-0abcdef12345"
         - "e7b9c3d1-2d45-5f67-b890-1bcdef023456"
-