Bug 132039 [Field Assist] - secondary popup should update on same delay as its invocation delay
bundles/org.eclipse.jface/src/org/eclipse/jface/fieldassist/ContentProposalAdapter.java
}
		}
		/*
		 * Filter the provided list of content proposals according to the filter
		 * text.
		 */
		private IContentProposal[] filterProposals(
				IContentProposal[] proposals, String filterString) {
			if (filterString.length() == 0) {
				return proposals;
			}
			
			
			ArrayList list = new ArrayList();
			for (int i = 0; i < proposals.length; i++) {
				String string = getString(proposals[i]);
				if (string.length() >= filterString.length()
						&& string.substring(0, filterString.length())
								.equalsIgnoreCase(filterString)) {
					list.add(proposals[i]);
				}
			}
			return (IContentProposal[]) list.toArray(new IContentProposal[list
					.size()]);
		}
		Listener getTargetControlListener() {
			if (targetControlListener == null) {
				targetControlListener = new TargetControlListener();
			}
			return targetControlListener;