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
fExecutedTests= 0;
		fFailureCount= 0;
		fErrorCount= 0;
		fTestCount= testCount;
		aboutToStart();
		fTestInfos.clear();
		fFailures= new ArrayList();
	}
	private void clearStatus() {
		getStatusLine().setMessage(null);
		getStatusLine().setErrorMessage(null);
	}
    public void setFocus() {
    	if (fActiveRunTab != null)
    		fActiveRunTab.setFocus();
    }
    public void createPartControl(Composite parent) {	
    	fParent= parent;
    	addResizeListener(parent);
		fClipboard= new Clipboard(parent.getDisplay());
		GridLayout gridLayout= new GridLayout(); 
		gridLayout.marginWidth= 0;
		gridLayout.marginHeight= 0;
		parent.setLayout(gridLayout);
		configureToolBar();
		
		fCounterComposite= createProgressCountPanel(parent);
		fCounterComposite.setLayoutData(new GridData(GridData.GRAB_HORIZONTAL | GridData.HORIZONTAL_ALIGN_FILL));
		SashForm sashForm= createSashForm(parent);
		sashForm.setLayoutData(new GridData(GridData.FILL_BOTH));