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
public void run() {
			getWrappedProgressMonitor().done();
		}
	});
}
/* (non-Javadoc)
 * Method declared on IProgressMonitor.
 */
public synchronized void internalWorked(final double work) {
	if (collector == null) {
		createCollector(null, work);
	} else {
		collector.worked(work);
	}
}
/* (non-Javadoc)
 * Method declared on IProgressMonitor.
 */
public void setTaskName(final String name) {
	synchronized(this) {
		collector= null;
	}	
	display.syncExec(new Runnable() {
		public void run() {
			currentTask = name;
			getWrappedProgressMonitor().setTaskName(name);
		}
	});
}
/* (non-Javadoc)