Bug 65839 [JUnit] update job leaks
There are situations when the JUnit update jobs are not properly stopped. Need to add safety checks to make sure that the update job is stopped.
org.eclipse.jdt.junit/src/org/eclipse/jdt/internal/junit/ui/TestRunnerViewPart.java
protected Vector fTestRunTabs = new Vector();
	/**
	 * The currently active run tab
	 */
	private TestRunTab fActiveRunTab;
	/**
	 * Is the UI disposed
	 */
	private boolean fIsDisposed= false;
	/**
	 * The launched project
	 */
	private IJavaProject fTestProject;
	/**
	 * The launcher that has started the test
	 */
	private String fLaunchMode;
	private ILaunch fLastLaunch;
	
	/**
	 * Actions
	 */
	private Action fRerunLastTestAction;
	private ScrollLockAction fScrollLockAction;
	private ToggleOrientationAction[] fToggleOrientationActions;
	
	/**
	 * The client side of the remote test runner
	 */
	private RemoteTestRunnerClient fTestRunnerClient;