Bug 167450 [DataBinding] Get rid of bind support factory magic
I finally realized that we don't need that other magic factory. I'll move fillBindSpecDefaults() and the methods it calls (createConverter, createValidator etc) to a new class DefaultBindSpec. Clients who want default validators and converters created for them just create a DefaultBindSpec as opposed to a (rather empty) BindSpec. I will also move the early type checking into DefaultBindSpec to make it optional as well.
bundles/org.eclipse.jface.databinding/src/org/eclipse/jface/internal/databinding/provisional/swt/WorkQueue.java
private boolean updateScheduled = false;
    private boolean paintListenerAttached = false;
    private LinkedList pendingWork = new LinkedList();
    private Display d;
    private Set pendingWorkSet = new HashSet();
    private Runnable updateJob = new Runnable() {
        public void run() {
            doUpdate();
            updateScheduled = false;
        }
    };
    private Listener paintListener = new Listener() {
        public void handleEvent(Event event) {
            paintListenerAttached = false;
            d.removeFilter(SWT.Paint, this);
            doUpdate();