fix missing type cast on read for serialization

Author: Sergio Bilello

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

@@ -63,7 +63,7 @@ public enum {{#datatypeWithEnum}}{{{.}}}{{/datatypeWithEnum}}{{^datatypeWithEnum
     @Override
     public {{#datatypeWithEnum}}{{{.}}}{{/datatypeWithEnum}}{{^datatypeWithEnum}}{{{classname}}}{{/datatypeWithEnum}} read(final JsonReader jsonReader) throws IOException {
       Object value = {{#isNumber}}new BigDecimal(jsonReader.nextDouble()){{/isNumber}}{{^isNumber}}jsonReader.{{#isInteger}}nextInt(){{/isInteger}}{{^isInteger}}nextString(){{/isInteger}}{{/isNumber}};
-      return {{#datatypeWithEnum}}{{{.}}}{{/datatypeWithEnum}}{{^datatypeWithEnum}}{{{classname}}}{{/datatypeWithEnum}}.fromValue(String.valueOf(value));
+      return {{#datatypeWithEnum}}{{{.}}}{{/datatypeWithEnum}}{{^datatypeWithEnum}}{{{classname}}}{{/datatypeWithEnum}}.fromValue(({{{datatype}}})(value));
     }
   }
 {{/if}}

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

@@ -46,7 +46,7 @@
       @Override
       public {{#datatypeWithEnum}}{{{.}}}{{/datatypeWithEnum}}{{^datatypeWithEnum}}{{classname}}{{/datatypeWithEnum}} read(final JsonReader jsonReader) throws IOException {
         Object value = {{#isNumber}}new BigDecimal(jsonReader.nextDouble()){{/isNumber}}{{^isNumber}}jsonReader.{{#isInteger}}nextInt(){{/isInteger}}{{^isInteger}}nextString(){{/isInteger}}{{/isNumber}};
-        return {{#datatypeWithEnum}}{{{.}}}{{/datatypeWithEnum}}{{^datatypeWithEnum}}{{classname}}{{/datatypeWithEnum}}.fromValue(String.valueOf(value));
+        return {{#datatypeWithEnum}}{{{.}}}{{/datatypeWithEnum}}{{^datatypeWithEnum}}{{classname}}{{/datatypeWithEnum}}.fromValue(({{{datatype}}})(value));
       }
     }{{/gson}}
   }