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
fStatus= message;
	}
	protected void postError(final String message) {
		fStatus= message;
	}
	protected void showInformation(final String info){
		postSyncRunnable(new Runnable() {
			public void run() {
				if (!isDisposed())
					fFailureTrace.setInformation(info);
			}
		});
	}
	protected CTabFolder createTestRunTabs(Composite parent) {
		CTabFolder tabFolder= new CTabFolder(parent, SWT.TOP);
		tabFolder.setLayoutData(new GridData(GridData.FILL_BOTH | GridData.GRAB_VERTICAL));
		loadTestRunTabs(tabFolder);
		tabFolder.setSelection(0);				
		fActiveRunTab= (TestRunTab)fTestRunTabs.firstElement();		
				
		tabFolder.addSelectionListener(new SelectionAdapter() {
			public void widgetSelected(SelectionEvent event) {
				testTabChanged(event);
			}
		});
		return tabFolder;
	}
	private void loadTestRunTabs(CTabFolder tabFolder) {
		IExtensionPoint extensionPoint= Platform.getExtensionRegistry().getExtensionPoint(ID_EXTENSION_POINT_TESTRUN_TABS);
		if (extensionPoint == null) {