Bug 277966 [Databinding] regression: ObservablesManager throws NPE on dispose if one of the observables is already disposed
tests/org.eclipse.jface.tests.databinding/src/org/eclipse/core/tests/databinding/ObservablesManagerTest.java
/*******************************************************************************
 * Copyright (c) 2007, 2009 Bob Smith 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:
 *     Bob Smith - initial API and implementation (bug 198880)
 *     Matthew Hall - bugs 146397, 260329
 ******************************************************************************/
package org.eclipse.core.tests.databinding;
import org.eclipse.core.databinding.DataBindingContext;
import org.eclipse.core.databinding.ObservablesManager;
import org.eclipse.core.databinding.observable.IChangeListener;
import org.eclipse.core.databinding.observable.IDisposeListener;
import org.eclipse.core.databinding.observable.IStaleListener;
import org.eclipse.core.databinding.observable.Realm;
import org.eclipse.core.databinding.observable.value.IObservableValue;
import org.eclipse.core.databinding.observable.value.IValueChangeListener;
import org.eclipse.jface.tests.databinding.AbstractDefaultRealmTestCase;
/**
 * @since 3.2
 *
 */
public class ObservablesManagerTest extends AbstractDefaultRealmTestCase {