added serialized name annotation to enums in java generatoor

Author: HugoMario

src/main/java/io/swagger/codegen/v3/generators/handlebars/StringUtilHelper.java

@@ -24,6 +24,15 @@ public String toLowerCase(String string) {
         return string.toLowerCase();
     }
 
+    public String toQuotedWord(Object object) {
+        String string = object.toString();
+        if (string.contains("\"")) {
+            return string;
+        } else {
+            return "\"" + string + "\"";
+        }
+    }
+
     public String backSlash() {
         return "\\";
     }

src/main/resources/handlebars/Java/modelEnum.mustache

@@ -19,6 +19,11 @@ import com.google.gson.stream.JsonWriter;
 public enum {{#datatypeWithEnum}}{{{.}}}{{/datatypeWithEnum}}{{^datatypeWithEnum}}{{{classname}}}{{/datatypeWithEnum}} {
   {{#allowableValues}}
   {{#enumVars}}
+  {{#gson}}
+  {{#value}}
+  @SerializedName({{{toQuotedWord value}}})
+  {{/value}}
+  {{/gson}}
   {{{name}}}({{#value}}{{{value}}}{{/value}}{{^value}}null{{/value}}){{^@last}},{{/@last}}{{#@last}};{{/@last}}
   {{/enumVars}}
   {{/allowableValues}}

src/main/resources/handlebars/Java/modelInnerEnum.mustache

@@ -5,6 +5,11 @@
   public enum {{#datatypeWithEnum}}{{{.}}}{{/datatypeWithEnum}}{{^datatypeWithEnum}}{{classname}}{{/datatypeWithEnum}} {
     {{#allowableValues}}
     {{#enumVars}}
+    {{#gson}}
+    {{#value}}
+    @SerializedName({{{toQuotedWord value}}})
+    {{/value}}
+    {{/gson}}
     {{{name}}}({{#value}}{{{value}}}{{/value}}{{^value}}null{{/value}}){{^@last}},{{/@last}}{{#@last}};{{/@last}}
     {{/enumVars}}
     {{/allowableValues}}