Bug 204843 [Field Assist] - API - should deprecate FILTER_CUMULATIVE in ContentProposalAdapter
bundles/org.eclipse.jface/src/org/eclipse/jface/fieldassist/ContentProposalAdapter.java
notifyPopupClosed();
			return ret;
		}
		/*
		 * Show the currently selected proposal's description in a secondary
		 * popup.
		 */
		private void showProposalDescription() {
			
			
			if (!pendingDescriptionUpdate) {
				
				
				
				
				Runnable runnable = new Runnable() {
					public void run() {
						pendingDescriptionUpdate = true;
						try {
							Thread.sleep(POPUP_DELAY);
						} catch (InterruptedException e) {
						}
						if (!isValid()) {
							return;
						}
						getShell().getDisplay().syncExec(new Runnable() {
							public void run() {
								
								
								IContentProposal p = getSelectedProposal();