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diff --git a/bean/com/sun/star/comp/beans/CallWatchThread.java b/bean/com/sun/star/comp/beans/CallWatchThread.java
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+/*************************************************************************
+ *
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * Copyright 2000, 2010 Oracle and/or its affiliates.
+ *
+ * OpenOffice.org - a multi-platform office productivity suite
+ *
+ * This file is part of OpenOffice.org.
+ *
+ * OpenOffice.org is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License version 3
+ * only, as published by the Free Software Foundation.
+ *
+ * OpenOffice.org 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 Lesser General Public License version 3 for more details
+ * (a copy is included in the LICENSE file that accompanied this code).
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * version 3 along with OpenOffice.org.  If not, see
+ * <http://www.openoffice.org/license.html>
+ * for a copy of the LGPLv3 License.
+ *
+ ************************************************************************/
+
+package com.sun.star.comp.beans;
+
+
+//---------------------------------------------------------------------------
+/** Helper class to watch calls into OOo with a timeout.
+ */
+//Do not add the thread instances to a threadgroup. When testing the bean in
+//an applet it turned out the the ThreadGroup was in an inconsistent state
+//after navigating off the site that contains the applet and back to it.
+//That was tested with a Sun JRE 1.4.2_06
+public class CallWatchThread extends Thread
+{
+    private static boolean DEBUG = false;
+
+    private Thread aWatchedThread;
+    private String aTag;
+    private boolean bAlive;
+    private long nTimeout;
+
+    public CallWatchThread(long nTimeout)
+    {
+        this(nTimeout, "");
+    }
+
+    public CallWatchThread( long nTimeout, String aTag )
+    {
+        super(aTag);
+        this.aWatchedThread = Thread.currentThread();
+        this.nTimeout = nTimeout;
+
+        this.aTag = aTag;
+        setDaemon( true );
+        dbgPrint( "CallWatchThread(" + this + ").start(" + aTag + ")" );
+        start();
+    }
+
+    public void cancel()
+        throws java.lang.InterruptedException
+    {
+        dbgPrint( "CallWatchThread(" + this + ".cancel(" + aTag + ")" );
+        if ( aWatchedThread != null && aWatchedThread != Thread.currentThread() )
+            throw new RuntimeException( "wrong thread" );
+        aWatchedThread = null;
+        if ( interrupted() )
+            throw new InterruptedException();
+    }
+
+    public synchronized void restart()
+        throws java.lang.InterruptedException
+    {
+        dbgPrint( "CallWatchThread(" + this + ".restart(" + aTag + ")" );
+        if ( aWatchedThread != null && aWatchedThread != Thread.currentThread() )
+            throw new RuntimeException( "wrong thread" );
+        bAlive = true;
+        if ( interrupted() )
+            throw new InterruptedException();
+        notify();
+    }
+
+    public void run()
+    {
+        dbgPrint( "CallWatchThread(" + this + ".run(" + aTag + ") ***** STARTED *****" );
+        long n = 0;
+        while ( aWatchedThread != null )
+        {
+            dbgPrint( "CallWatchThread(" + this + ").run(" + aTag + ") running #" + ++n );
+            synchronized(this)
+            {
+                bAlive = false;
+                try
+                {
+                    wait( nTimeout );
+                }
+                catch ( java.lang.InterruptedException aExc )
+                {
+                    bAlive = false;
+                }
+
+                // watched thread seems to be dead (not answering)?
+                if ( !bAlive && aWatchedThread != null )
+                {
+                    dbgPrint( "CallWatchThread(" + this + ").run(" + aTag + ") interrupting" );
+                    aWatchedThread.interrupt();
+                    aWatchedThread = null;
+                }
+            }
+        }
+
+        dbgPrint( "CallWatchThread(" + this + ").run(" + aTag + ") terminated" );
+    }
+
+    private void dbgPrint( String aMessage )
+    {
+        if (DEBUG)
+            System.err.println( "OOoBean: " + aMessage );
+    }
+}
+
+
+
+