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 int getOrientation() {
			return fActionOrientation;
		}
		
		public void run() {
			if (isChecked()) {
				fOrientation= fActionOrientation;
				computeOrientation();
			}
		}		
	}
	/**
	 * Listen for for modifications to Java elements
	 */
	private class DirtyListener implements IElementChangedListener {
		public void elementChanged(ElementChangedEvent event) {
			processDelta(event.getDelta());				
		}
		
		private boolean processDelta(IJavaElementDelta delta) {
			int kind= delta.getKind();
			int details= delta.getFlags();
			int type= delta.getElement().getElementType();
			
			switch (type) {
				
				case IJavaElement.JAVA_MODEL:
				case IJavaElement.JAVA_PROJECT:
				case IJavaElement.PACKAGE_FRAGMENT_ROOT:
				case IJavaElement.PACKAGE_FRAGMENT: