Bug 81099 JUnit preference does not Restore Defaults [JUnit]
I200412142000 Restore Defaults has no effect on the "Show JUnit view only when error occurs" preference.
org.eclipse.jdt.junit/src/org/eclipse/jdt/internal/junit/ui/JUnitPlugin.java
/*******************************************************************************
 * Copyright (c) 2000, 2004 IBM Corporation and others.
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v1.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/epl-v10.html
 *
 * Contributors:
 *     IBM Corporation - initial API and implementation
 *   Julien Ruaux: jruaux@octo.com
 * 	 Vincent Massol: vmassol@octo.com
 *******************************************************************************/
package org.eclipse.jdt.internal.junit.ui;
import java.lang.reflect.InvocationTargetException;
import java.net.MalformedURLException;
import java.net.URL;
import java.util.AbstractSet;
import java.util.ArrayList;
import java.util.HashSet;
import java.util.Iterator;
import java.util.List;
import java.util.Set;
import org.eclipse.core.resources.IWorkspaceRoot;