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
*/
	public void testStarted(String testId, String testName) {
		postStartTest(testId, testName);
		
		if (!fShowOnErrorOnly && fExecutedTests == 1) 
			postShowTestResultsView();
			
		TestRunInfo testInfo= getTestInfo(testId);
		if (testInfo == null) {
			testInfo= new TestRunInfo(testId, testName);
			fTestInfos.put(testId, testInfo);
		}
		String className= testInfo.getClassName();
		String method= testInfo.getTestMethodName();		
		String status= JUnitMessages.getFormattedString("TestRunnerViewPart.message.started", new String[] { className, method }); 
		setInfoMessage(status); 
	}
	
	/*
	 * @see ITestRunListener#testEnded
	 */
	public void testEnded(String testId, String testName){
		postEndTest(testId, testName);
		fExecutedTests++;
	}
	/*
	 * @see ITestRunListener#testFailed
	 */
	public void testFailed(int status, String testId, String testName, String trace){
		testFailed(status, testId, testName, trace, null, null);