Bug 60907 Two progress dialogs when building WS + dragging a file into the navigator
build N20040503 - start the workspace - delete a view_menu.gif file from org.eclipse.ui\icons... - note for me that a build starts now - drag another file from the file system while the build is happening - drop it on the folder where the first file was deleted from two progress dialogs appear... see attachment.
bundles/org.eclipse.jface/src/org/eclipse/jface/operation/AccumulatingProgressMonitor.java
* Method declared on IProgressMonitor.
 */
public synchronized void subTask(final String name) {
	if (collector == null) {
		createCollector(name, 0);
	} else {
		collector.subTask(name);
	}
}
/* (non-Javadoc)
 * Method declared on IProgressMonitor.
 */
public synchronized void worked(int work) {
	internalWorked(work);
}
/* (non-Javadoc)
 * @see org.eclipse.core.runtime.ProgressMonitorWrapper#clearBlocked()
 */
public void clearBlocked() {
	
	
	
	
	final IProgressMonitor pm = getWrappedProgressMonitor();
	if(!(pm instanceof IProgressMonitorWithBlocking))
		return;
	
	display.asyncExec(new Runnable(){
		/* (non-Javadoc)
		 * @see java.lang.Runnable#run()