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diff --git a/plugin/icedteanp/java/netscape/javascript/JSRunnable.java b/plugin/icedteanp/java/netscape/javascript/JSRunnable.java
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+/* -*- Mode: Java; tab-width: 8; c-basic-offset: 4 -*-
+ *
+ * ***** BEGIN LICENSE BLOCK *****
+ * Version: MPL 1.1/GPL 2.0/LGPL 2.1
+ *
+ * The contents of this file are subject to the Mozilla Public License Version
+ * 1.1 (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.mozilla.org/MPL/
+ *
+ * Software distributed under the License is distributed on an "AS IS" basis,
+ * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
+ * for the specific language governing rights and limitations under the
+ * License.
+ *
+ * The Original Code is Mozilla Communicator client code, released
+ * March 31, 1998.
+ *
+ * The Initial Developer of the Original Code is
+ * Netscape Communications Corporation.
+ * Portions created by the Initial Developer are Copyright (C) 1998
+ * the Initial Developer. All Rights Reserved.
+ *
+ * Contributor(s):
+ *
+ * Alternatively, the contents of this file may be used under the terms of
+ * either of the GNU General Public License Version 2 or later (the "GPL"),
+ * or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
+ * in which case the provisions of the GPL or the LGPL are applicable instead
+ * of those above. If you wish to allow use of your version of this file only
+ * under the terms of either the GPL or the LGPL, and not to allow others to
+ * use your version of this file under the terms of the MPL, indicate your
+ * decision by deleting the provisions above and replace them with the notice
+ * and other provisions required by the GPL or the LGPL. If you do not delete
+ * the provisions above, a recipient may use your version of this file under
+ * the terms of any one of the MPL, the GPL or the LGPL.
+ *
+ * ***** END LICENSE BLOCK ***** */
+
+package netscape.javascript;
+
+import sun.applet.PluginDebug;
+
+/**
+ * Runs a JavaScript object with a run() method in a separate thread.
+ */
+public class JSRunnable implements Runnable {
+	private JSObject runnable;
+
+	public JSRunnable(JSObject runnable) {
+		this.runnable = runnable;
+		synchronized(this) {
+			new Thread(this).start();
+			try {
+				this.wait();
+			} catch (InterruptedException ie) {
+			}
+		}
+	}
+	
+	public void run() {
+		try {
+			runnable.call("run", null);
+			synchronized(this) {
+				notifyAll();
+			}
+		} catch (Throwable t) {
+			PluginDebug.debug(t.toString());
+			t.printStackTrace(System.err);
+		}
+	}
+}