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/*
* Copyright (c) 2013, 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 8015926
* @summary Tests that there are no NPE during painting
* @author Sergey Malenkov
*/
import javax.swing.JFrame;
import javax.swing.JTree;
import javax.swing.SwingUtilities;
import javax.swing.UIManager;
import javax.swing.event.TreeModelEvent;
import javax.swing.event.TreeModelListener;
import javax.swing.tree.DefaultMutableTreeNode;
import javax.swing.tree.DefaultTreeModel;
import static javax.swing.WindowConstants.DISPOSE_ON_CLOSE;
public class Test8015926 implements TreeModelListener, Runnable, Thread.UncaughtExceptionHandler {
public static void main(String[] args) throws Exception {
UIManager.setLookAndFeel("javax.swing.plaf.nimbus.NimbusLookAndFeel");
SwingUtilities.invokeAndWait(new Test8015926());
Thread.sleep(1000L);
}
private JTree tree;
@Override
public void treeStructureChanged(TreeModelEvent event) {
}
@Override
public void treeNodesRemoved(TreeModelEvent event) {
}
@Override
public void treeNodesInserted(TreeModelEvent event) {
this.tree.expandPath(event.getTreePath());
}
@Override
public void treeNodesChanged(TreeModelEvent event) {
}
@Override
public void run() {
Thread.currentThread().setUncaughtExceptionHandler(this);
DefaultMutableTreeNode root = new DefaultMutableTreeNode();
DefaultMutableTreeNode child = new DefaultMutableTreeNode("Child");
DefaultTreeModel model = new DefaultTreeModel(root);
this.tree = new JTree();
this.tree.setModel(model);
JFrame frame = new JFrame(getClass().getSimpleName());
frame.add(this.tree);
model.addTreeModelListener(this); // frame is not visible yet
model.insertNodeInto(child, root, root.getChildCount());
model.removeNodeFromParent(child);
frame.setSize(640, 480);
frame.setLocationRelativeTo(null);
frame.setDefaultCloseOperation(DISPOSE_ON_CLOSE);
frame.setVisible(true);
}
@Override
public void uncaughtException(Thread thread, Throwable exception) {
exception.printStackTrace();
System.exit(1);
}
}
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