code: public void unsetConstant()
  	{
  		boolean oldConstant = constant;
  		boolean oldConstantESet = constantESet;
  		constant = CONSTANT_EDEFAULT;
  		constantESet = false;
  		if (eNotificationRequired())
  			eNotify(new ENotificationImpl(this, Notification.UNSET, TypesPackage.JVM_FIELD__CONSTANT, oldConstant, CONSTANT_EDEFAULT, oldConstantESet));
  	}
docs: <!-- begin-user-doc -->
  <!-- end-user-doc -->
  @generated