code: public NotificationChain basicSetParameterType(JvmTypeReference newParameterType, NotificationChain msgs)
  	{
  		JvmTypeReference oldParameterType = parameterType;
  		parameterType = newParameterType;
  		if (eNotificationRequired())
  		{
  			ENotificationImpl notification = new ENotificationImpl(this, Notification.SET, TypesPackage.JVM_FORMAL_PARAMETER__PARAMETER_TYPE, oldParameterType, newParameterType);
  			if (msgs == null) msgs = notification; else msgs.add(notification);
  		}
  		return msgs;
  	}
docs: <!-- begin-user-doc -->
  <!-- end-user-doc -->
  @generated