| /* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you under the Apache License, Version 2.0 (the |
| * "License"); you may not use this file except in compliance |
| * with the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, |
| * software distributed under the License is distributed on an |
| * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| * KIND, either express or implied. See the License for the |
| * specific language governing permissions and limitations |
| * under the License. |
| */ |
| |
| |
| package org.openide.text; |
| |
| import java.util.Date; |
| import java.beans.*; |
| import java.io.ByteArrayOutputStream; |
| import java.io.ByteArrayInputStream; |
| import javax.swing.text.*; |
| import javax.swing.text.BadLocationException; |
| import javax.swing.text.Position; |
| import javax.swing.text.StyledDocument; |
| |
| import junit.textui.TestRunner; |
| |
| import org.netbeans.junit.NbTestCase; |
| import org.netbeans.junit.NbTestSuite; |
| |
| import org.openide.text.CloneableEditorSupport; |
| import org.openide.text.NbDocument; |
| |
| /** |
| * Tries closing a document while holding a read lock and adding |
| * a position reference from other thread. |
| * |
| * This test fails if switched to writeLock instead of readLock |
| * |
| * @author Petr Nejedly |
| */ |
| public class Deadlock49178Test extends NbTestCase implements CloneableEditorSupport.Env { |
| static { |
| System.setProperty("org.openide.windows.DummyWindowManager.VISIBLE", "false"); |
| } |
| |
| boolean inWait = false; |
| boolean shouldWait = true; |
| Object waitLock = new Object(); |
| |
| /** the support to work with */ |
| private CES support; |
| |
| // Env variables |
| private String content = "Hello"; |
| private boolean valid = true; |
| private boolean modified = false; |
| private Date date = new Date (); |
| private transient PropertyChangeSupport prop = new PropertyChangeSupport(this); |
| private transient VetoableChangeSupport veto = new VetoableChangeSupport(this); |
| private Exception exception; |
| |
| boolean processingDone = false; |
| boolean closingDone = false; |
| |
| |
| public Deadlock49178Test(String s) { |
| super(s); |
| } |
| |
| public static void main(String[] args) { |
| TestRunner.run(new NbTestSuite(Deadlock49178Test.class)); |
| } |
| |
| protected void setUp () { |
| support = new CES (this, org.openide.util.Lookup.EMPTY); |
| } |
| |
| public void testDeadlock49178() throws Exception { |
| // open the document |
| final StyledDocument docu = support.openDocument(); |
| |
| // Perform a modification so that notifyModify() gets called as supposed by the test |
| // Otherwise notifyUnmodified() would not be called (there's no reason to call it in such case). |
| docu.insertString(0, "a", null); |
| |
| // start closing it |
| Thread closing = new Thread(new Runnable() { public void run() { |
| support.close(false); // will block in notifyUnmodified() |
| closingDone = true; |
| }}); |
| closing.start(); |
| |
| Thread processing = new Thread(new Runnable() { |
| boolean second = false; |
| |
| public void run() { |
| if (!second) { |
| second = true; |
| docu.render(this); |
| // NbDocument.runAtomic(docu, this); |
| } else { // inside readLock |
| support.createPositionRef(0, Position.Bias.Forward); |
| processingDone = true; |
| } |
| } |
| }); |
| |
| |
| synchronized(waitLock) { |
| while (!inWait) waitLock.wait(); |
| } |
| |
| processing.start(); |
| |
| Thread.sleep(1000); |
| synchronized(waitLock) { |
| shouldWait = false; |
| waitLock.notifyAll(); |
| } |
| |
| closing.join(10000); |
| processing.join(10000); |
| assertNull("No exception thrown", exception); |
| assertTrue("Closing thread finished", closingDone); |
| assertTrue("Processing thread finished", processingDone); |
| } |
| |
| |
| // |
| // Implementation of the CloneableEditorSupport.Env |
| // |
| |
| public void addPropertyChangeListener(PropertyChangeListener l) { |
| prop.addPropertyChangeListener (l); |
| } |
| |
| public void removePropertyChangeListener(PropertyChangeListener l) { |
| prop.removePropertyChangeListener (l); |
| } |
| |
| public void addVetoableChangeListener(VetoableChangeListener l) { |
| veto.addVetoableChangeListener (l); |
| } |
| |
| public void removeVetoableChangeListener(VetoableChangeListener l) { |
| veto.removeVetoableChangeListener (l); |
| } |
| |
| |
| public org.openide.windows.CloneableOpenSupport findCloneableOpenSupport() { |
| return support; |
| } |
| |
| public String getMimeType() { |
| return "text/plain"; |
| } |
| |
| public java.util.Date getTime() { |
| return date; |
| } |
| |
| public java.io.InputStream inputStream() throws java.io.IOException { |
| return new ByteArrayInputStream(content.getBytes()); |
| } |
| |
| public java.io.OutputStream outputStream() throws java.io.IOException { |
| return new ByteArrayOutputStream(); |
| } |
| |
| public boolean isValid() { |
| return valid; |
| } |
| |
| public boolean isModified() { |
| return modified; |
| } |
| |
| public void markModified() throws java.io.IOException { |
| modified = true; |
| } |
| |
| public void unmarkModified() { |
| modified = false; |
| } |
| |
| /** Implementation of the CES */ |
| private final class CES extends CloneableEditorSupport { |
| |
| public CES (Env env, org.openide.util.Lookup l) { |
| super (env, l); |
| } |
| |
| protected String messageName() { |
| return "Name"; |
| } |
| |
| protected String messageOpened() { |
| return "Opened"; |
| } |
| |
| protected String messageOpening() { |
| return "Opening"; |
| } |
| |
| protected String messageSave() { |
| return "Save"; |
| } |
| |
| protected String messageToolTip() { |
| return "ToolTip"; |
| } |
| |
| protected void notifyUnmodified () { |
| super.notifyUnmodified(); |
| |
| synchronized(waitLock) { |
| inWait = true; |
| waitLock.notifyAll(); |
| try { |
| while (shouldWait) waitLock.wait(); |
| } catch (InterruptedException e) { |
| exception = e; |
| } |
| } |
| } |
| |
| |
| protected StyledDocument createStyledDocument (EditorKit kit) { |
| return new Doc(); // Why the FilterDocument doesn't support WriteLockable? |
| } |
| |
| class Doc extends DefaultStyledDocument implements NbDocument.WriteLockable { |
| public void runAtomic (Runnable r) { |
| writeLock(); |
| try { |
| r.run(); |
| } finally { |
| writeUnlock(); |
| } |
| } |
| |
| public void runAtomicAsUser (Runnable r) throws BadLocationException { |
| runAtomic(r); |
| } |
| } |
| |
| } // end of CES |
| |
| } |