100 lines
3.2 KiB
Java
100 lines
3.2 KiB
Java
/*
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* Copyright (c) 2013, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*/
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/*
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* @test
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* @key headful
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* @bug 8015926
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* @summary Tests that there are no NPE during painting
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* @author Sergey Malenkov
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*/
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import javax.swing.JFrame;
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import javax.swing.JTree;
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import javax.swing.SwingUtilities;
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import javax.swing.UIManager;
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import javax.swing.event.TreeModelEvent;
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import javax.swing.event.TreeModelListener;
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import javax.swing.tree.DefaultMutableTreeNode;
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import javax.swing.tree.DefaultTreeModel;
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import static javax.swing.WindowConstants.DISPOSE_ON_CLOSE;
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public class Test8015926 implements TreeModelListener, Runnable, Thread.UncaughtExceptionHandler {
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public static void main(String[] args) throws Exception {
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UIManager.setLookAndFeel("javax.swing.plaf.nimbus.NimbusLookAndFeel");
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SwingUtilities.invokeAndWait(new Test8015926());
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Thread.sleep(1000L);
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}
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private JTree tree;
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@Override
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public void treeStructureChanged(TreeModelEvent event) {
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}
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@Override
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public void treeNodesRemoved(TreeModelEvent event) {
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}
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@Override
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public void treeNodesInserted(TreeModelEvent event) {
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this.tree.expandPath(event.getTreePath());
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}
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@Override
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public void treeNodesChanged(TreeModelEvent event) {
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}
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@Override
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public void run() {
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Thread.currentThread().setUncaughtExceptionHandler(this);
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DefaultMutableTreeNode root = new DefaultMutableTreeNode();
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DefaultMutableTreeNode child = new DefaultMutableTreeNode("Child");
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DefaultTreeModel model = new DefaultTreeModel(root);
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this.tree = new JTree();
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this.tree.setModel(model);
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JFrame frame = new JFrame(getClass().getSimpleName());
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frame.add(this.tree);
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model.addTreeModelListener(this); // frame is not visible yet
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model.insertNodeInto(child, root, root.getChildCount());
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model.removeNodeFromParent(child);
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frame.setSize(640, 480);
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frame.setLocationRelativeTo(null);
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frame.setDefaultCloseOperation(DISPOSE_ON_CLOSE);
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frame.setVisible(true);
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}
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@Override
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public void uncaughtException(Thread thread, Throwable exception) {
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exception.printStackTrace();
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throw new RuntimeException(exception);
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}
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}
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