docs: public ClassProject.CodeType getCodeType()
      {
          String code = this.toString();
          if ("THICK".equalsIgnoreCase(code))
              return ClassProject.CodeType.THICK;
          if ("THIN".equalsIgnoreCase(code))
              return ClassProject.CodeType.THIN;
          if ("RESOURCE_CODE".equalsIgnoreCase(code))
              return ClassProject.CodeType.RESOURCE_CODE;
          if ("RESOURCE_PROPERTIES".equalsIgnoreCase(code))
              return ClassProject.CodeType.RESOURCE_PROPERTIES;
          if ("INTERFACE".equalsIgnoreCase(code))
              return ClassProject.CodeType.INTERFACE;
          return null;
      }