/* * Copyright (c) 2010, 2015, Oracle and/or its affiliates. All rights reserved. * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. * * This code is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License version 2 only, as * published by the Free Software Foundation. * * This code is distributed in the hope that it will be useful, but WITHOUT * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License * version 2 for more details (a copy is included in the LICENSE file that * accompanied this code). * * You should have received a copy of the GNU General Public License version * 2 along with this work; if not, write to the Free Software Foundation, * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. * * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA * or visit www.oracle.com if you need additional information or have any * questions. */ /* * @test * @key headful * @bug 7004134 * @summary JLabel containing a ToolTipText does no longer show ToolTip after browser refresh * @author Pavel Porvatov * @modules java.desktop/sun.awt */ import sun.awt.SunToolkit; import javax.swing.*; import java.awt.*; import java.awt.event.MouseEvent; import java.lang.reflect.Field; public class bug7004134 { private static volatile JFrame frame; private static volatile JLabel label; private static volatile int toolTipWidth; public static void main(String[] args) throws Exception { SwingUtilities.invokeAndWait(new Runnable() { public void run() { label = new JLabel("A JLabel used as object for an HTML-formatted tooltip"); label.setToolTipText("An HTML-formatted ToolTip"); frame = new JFrame(); frame.add(label); frame.pack(); frame.setVisible(true); } }); ((SunToolkit) SunToolkit.getDefaultToolkit()).realSync(); SwingUtilities.invokeAndWait(new Runnable() { public void run() { ToolTipManager toolTipManager = ToolTipManager.sharedInstance(); toolTipManager.setInitialDelay(0); toolTipManager.mouseMoved(new MouseEvent(label, 0, 0, 0, 0, 0, 0, false)); } }); Thread.sleep(500); SwingUtilities.invokeAndWait(new Runnable() { public void run() { toolTipWidth = getTipWindow().getWidth(); frame.dispose(); } }); Thread thread = new Thread(new ThreadGroup("Some ThreadGroup"), new Runnable() { public void run() { SunToolkit.createNewAppContext(); try { SwingUtilities.invokeAndWait(new Runnable() { public void run() { frame = new JFrame(); frame.add(label); frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); frame.pack(); frame.setVisible(true); } }); ((SunToolkit) SunToolkit.getDefaultToolkit()).realSync(); SwingUtilities.invokeAndWait(new Runnable() { public void run() { ToolTipManager toolTipManager = ToolTipManager.sharedInstance(); toolTipManager.setInitialDelay(0); toolTipManager.mouseMoved(new MouseEvent(label, 0, 0, 0, 0, 0, 0, false)); } }); Thread.sleep(500); SwingUtilities.invokeAndWait(new Runnable() { public void run() { int newToolTipWidth = getTipWindow().getWidth(); frame.dispose(); if (toolTipWidth != newToolTipWidth) { throw new RuntimeException("Tooltip width is different. Initial: " + toolTipWidth + ", new: " + newToolTipWidth); } } }); } catch (Exception e) { throw new RuntimeException(e); } } }); thread.start(); thread.join(); } private static Component getTipWindow() { try { Field tipWindowField = ToolTipManager.class.getDeclaredField("tipWindow"); tipWindowField.setAccessible(true); Popup value = (Popup) tipWindowField.get(ToolTipManager.sharedInstance()); Field componentField = Popup.class.getDeclaredField("component"); componentField.setAccessible(true); return (Component) componentField.get(value); } catch (Exception e) { throw new RuntimeException("getToolTipComponent failed", e); } } }