code: public void setJdkLevel(final String jdkLevel) {
      this.jdkLevel = GenJDKLevel.getByName(jdkLevel);
      if ((this.jdkLevel == null)) {
        EMFGeneratorFragment2.LOG.warn(("Illegal JDK level: " + jdkLevel));
      }
    }
docs: Set the JDK compatibility level. The following values are valid:
  <ul>
  <li>"JDK14"</li>
  <li>"JDK50"</li>
  <li>"JDK60"</li>
  <li>"JDK70"</li>
  <li>"JDK80"</li>
  </ul>
  The default level is "JDK60".