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/*
* Copyright (c) 2012, 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.
*/
import java.awt.EventQueue;
import java.awt.Rectangle;
import java.awt.event.ActionEvent;
import javax.swing.JTree;
import javax.swing.plaf.basic.BasicTreeUI;
import javax.swing.tree.TreePath;
/* Originally reported as NetBeans bug 222081.
*
* @test
* @bug 8003830
* @summary NullPointerException in BasicTreeUI.Actions when getPathBounds returns null
* @author Jaroslav Tulach
* @run main bug8003830
*/
public class bug8003830 implements Runnable {
public static void main(String[] args) throws Exception {
EventQueue.invokeAndWait(new bug8003830());
}
@Override
public void run() {
testNPEAtActionsPage();
}
public void testNPEAtActionsPage() {
JTree tree = new JTree();
BasicTreeUI ui = new NullReturningTreeUI();
tree.setUI(ui);
BasicTreeUI.TreePageAction tpa = ui.new TreePageAction(0, "down");
tpa.actionPerformed(new ActionEvent(tree, 0, ""));
}
private static final class NullReturningTreeUI extends BasicTreeUI {
@Override
public Rectangle getPathBounds(JTree tree, TreePath path) {
// the method can return null and callers have to be ready for
// that. Simulate the case by returning null for unknown reason.
return null;
}
}
}
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