Here you can find the source of decorateMissingValue(JComponent jComponent, boolean missingValueState)
public static void decorateMissingValue(JComponent jComponent, boolean missingValueState)
//package com.java2s; /*// w ww .j a va 2 s . co m * Copyright (c) 2008-2016 Haulmont. * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. * */ import javax.swing.*; import java.awt.*; public class Main { public static final Color defaultBgColor = (Color) UIManager.get("nimbusLightBackground"); public static final Color requiredBgColor = (Color) UIManager.get("cubaRequiredBackground"); public static void decorateMissingValue(JComponent jComponent, boolean missingValueState) { jComponent.setBackground(missingValueState ? requiredBgColor : defaultBgColor); } }