Bug 125955 [Field Assist] - StringIndexOutOfBoundsException when backspacing out of a filter
bundles/org.eclipse.jface/src/org/eclipse/jface/fieldassist/ContentProposalAdapter.java
setProposals(getProposals(filterText));
		}
		/*
		 * 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()]);
		}
	}
	/**
	 * Flag that controls the printing of debug info.
	 */
	public static final boolean DEBUG = false;
	/**