Description Gary Karasiuk 2010-06-27 08:48:57 EDT

I am trying to code my own content assist. When I press the TAB key on one of my content assist entries I get the following NPE:

java.lang.NullPointerException
	at org.eclipse.jface.text.contentassist.CompletionProposalPopup$9.keyTraversed(CompletionProposalPopup.java:728)
	at org.eclipse.swt.widgets.TypedListener.handleEvent(TypedListener.java:247)
	at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:84)
	at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1053)
	at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1077)
	at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1062)
	at org.eclipse.swt.widgets.Control.traverse(Control.java:3693)
	at org.eclipse.swt.widgets.Control.translateTraversal(Control.java:3675)
	at org.eclipse.swt.widgets.Composite.translateTraversal(Composite.java:1218)
	at org.eclipse.swt.widgets.Display.translateTraversal(Display.java:4691)
	at org.eclipse.swt.widgets.Display.filterMessage(Display.java:1267)
	at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3653)
SNIP 

Here is my code that sets up the content assist proposals:

	private ICompletionProposal[] memorizedCompletions(String token, int offset) {
		List<MemorizedTransactionImmutable> mts = MTCache.instance.getByName(token.substring(2));
		ICompletionProposal[] result= new ICompletionProposal[mts.size()];
		int i = 0;
		for (MemorizedTransactionImmutable mt : mts){
			IContextInformation ci = new ContextInformation(mt.key, mt.transaction);
			result[i++] = new CompletionProposal(mt.transaction, offset-token.length(), token.length(), mt.transaction.length(), null, mt.key, ci, null);
		}
		return result;
	}