Here you can find the source of getPermanentFocusOwner()
public static Component getPermanentFocusOwner()
//package com.java2s; /*/*from w w w . ja v a 2s .co m*/ * Copyright 2008-2014 by Emeric Vernat * * This file is part of Java Melody. * * 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 java.awt.Component; import javax.swing.FocusManager; public class Main { public static Component getPermanentFocusOwner() { // return new DefaultKeyboardFocusManager().getPermanentFocusOwner(); return FocusManager.getCurrentManager().getPermanentFocusOwner(); } }