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
* Stops the currently running test and shuts down the RemoteTestRunner
	 */
	public void stopTest() {
		if (fTestRunnerClient != null)
			fTestRunnerClient.stopTest();
	}
	/**
	 * Stops the currently running test and shuts down the RemoteTestRunner
	 */
	public void rerunTestRun() {
		if (lastLaunchIsKeptAlive()) {
			
			if (MessageDialog.openQuestion(getSite().getShell(), JUnitMessages.getString("TestRunnerViewPart.terminate.title"), JUnitMessages.getString("TestRunnerViewPart.terminate.message"))) {  
				if (fTestRunnerClient != null)
					fTestRunnerClient.stopTest();
			}
		}
		if (fLastLaunch != null && fLastLaunch.getLaunchConfiguration() != null) {
			DebugUITools.launch(fLastLaunch.getLaunchConfiguration(), fLastLaunch.getLaunchMode());
		}
	}
	public void setAutoScroll(boolean scroll) {
		fAutoScroll = scroll;
	}
	
	public boolean isAutoScroll() {
		return fAutoScroll;
	}	
	/*
	 * @see ITestRunListener#testRunStarted(testCount)