001: /*
002: * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
003: *
004: * Copyright 1997-2007 Sun Microsystems, Inc. All rights reserved.
005: *
006: * The contents of this file are subject to the terms of either the GNU
007: * General Public License Version 2 only ("GPL") or the Common
008: * Development and Distribution License("CDDL") (collectively, the
009: * "License"). You may not use this file except in compliance with the
010: * License. You can obtain a copy of the License at
011: * http://www.netbeans.org/cddl-gplv2.html
012: * or nbbuild/licenses/CDDL-GPL-2-CP. See the License for the
013: * specific language governing permissions and limitations under the
014: * License. When distributing the software, include this License Header
015: * Notice in each file and include the License file at
016: * nbbuild/licenses/CDDL-GPL-2-CP. Sun designates this
017: * particular file as subject to the "Classpath" exception as provided
018: * by Sun in the GPL Version 2 section of the License file that
019: * accompanied this code. If applicable, add the following below the
020: * License Header, with the fields enclosed by brackets [] replaced by
021: * your own identifying information:
022: * "Portions Copyrighted [year] [name of copyright owner]"
023: *
024: * Contributor(s):
025: *
026: * The Original Software is NetBeans. The Initial Developer of the Original
027: * Software is Sun Microsystems, Inc. Portions Copyright 1997-2006 Sun
028: * Microsystems, Inc. All Rights Reserved.
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030: * If you wish your version of this file to be governed by only the CDDL
031: * or only the GPL Version 2, indicate your decision by adding
032: * "[Contributor] elects to include this software in this distribution
033: * under the [CDDL or GPL Version 2] license." If you do not indicate a
034: * single choice of license, a recipient has the option to distribute
035: * your version of this file under either the CDDL, the GPL Version 2 or
036: * to extend the choice of license to its licensees as provided above.
037: * However, if you add GPL Version 2 code and therefore, elected the GPL
038: * Version 2 license, then the option applies only if the new code is
039: * made subject to such option by the copyright holder.
040: */
041:
042: package org.openide.explorer.view;
043:
044: import java.awt.Dimension;
045: import java.awt.EventQueue;
046: import java.awt.event.ActionEvent;
047: import java.beans.PropertyVetoException;
048: import java.lang.ref.WeakReference;
049: import java.lang.reflect.InvocationTargetException;
050: import javax.swing.AbstractAction;
051: import javax.swing.Action;
052: import javax.swing.JFrame;
053: import javax.swing.JOptionPane;
054: import javax.swing.JScrollBar;
055: import javax.swing.JScrollPane;
056: import org.netbeans.junit.NbTestCase;
057: import org.openide.explorer.ExplorerManager;
058: import org.openide.nodes.*;
059:
060: /**
061: * A test covering JDK issue 6472844 and its NetBeans workaround
062: * @author Petr Nejedly
063: */
064: public final class TreeNodeLeakTest extends NbTestCase {
065:
066: private TreeView treeView;
067: private ExplorerWindow testWindow;
068: private Node toSelect[] = new Node[6];
069:
070: public TreeNodeLeakTest(String testName) {
071: super (testName);
072: }
073:
074: private static Node createNode(String name, Node... sub) {
075: Children ch = Children.LEAF;
076: if (sub != null) {
077: ch = new Children.Array();
078: ch.add(sub);
079: }
080: AbstractNode n = new AbstractNode(ch);
081: n.setName(name);
082: return n;
083: }
084:
085: /**
086: * @see http://www.netbeans.org/issues/show_bug.cgi?id=84970
087: */
088: public void testNodesLeak() throws Exception {
089: assert !EventQueue.isDispatchThread();
090: final Node root = createNode("Root", toSelect[0] = createNode(
091: "ch1", toSelect[1] = createNode("A", (Node[]) null),
092: toSelect[2] = createNode("B", (Node[]) null)),
093: toSelect[3] = createNode("ch2",
094: toSelect[4] = createNode("A", (Node[]) null),
095: toSelect[5] = createNode("B", (Node[]) null)),
096: createNode("ch3", createNode("A", (Node[]) null),
097: createNode("B", (Node[]) null)));
098: EventQueue.invokeAndWait(new Runnable() {
099: public void run() {
100: treeView = new BeanTreeView();
101: testWindow = new ExplorerWindow();
102: testWindow.getContentPane().add(treeView);
103: testWindow.pack();
104: testWindow.setVisible(true);
105: testWindow.getExplorerManager().setRootContext(root);
106: try {
107: testWindow.getExplorerManager().setSelectedNodes(
108: toSelect);
109: } catch (PropertyVetoException pve) {
110: fail(pve.getMessage());
111: }
112: root.getChildren().remove(
113: new Node[] { toSelect[0], toSelect[3] });
114: }
115: });
116: EventQueue.invokeAndWait(new Runnable() {
117: public void run() {
118: }
119: });
120:
121: WeakReference wr = new WeakReference(toSelect[0]);
122: toSelect = null;
123: assertGC("Node freed", wr);
124: }
125:
126: private static final class ExplorerWindow extends JFrame implements
127: ExplorerManager.Provider {
128:
129: private final ExplorerManager explManager = new ExplorerManager();
130:
131: ExplorerWindow() {
132: super ("TreeView test"); //NOI18N
133: }
134:
135: public ExplorerManager getExplorerManager() {
136: return explManager;
137: }
138:
139: }
140: }
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