code: @Override
  	public boolean eIsSet(int featureID)
  	{
  		switch (featureID)
  		{
  			case TypesPackage.JVM_UNKNOWN_TYPE_REFERENCE__QUALIFIED_NAME:
  				return QUALIFIED_NAME_EDEFAULT == null ? qualifiedName != null : !QUALIFIED_NAME_EDEFAULT.equals(qualifiedName);
  		}
  		return super.eIsSet(featureID);
  	}
docs: <!-- begin-user-doc -->
  <!-- end-user-doc -->
  @generated