fErrorMessage= null;
	public List computeCompletionProposals(ContentAssistInvocationContext context, IProgressMonitor monitor) {		fErrorMessage= null;		if (context instanceof JavaContentAssistInvocationContext) {			JavaContentAssistInvocationContext javaContext= (JavaContentAssistInvocationContext) context;			return internalComputeCompletionProposals(context.getInvocationOffset(), javaContext, monitor);		}		return Collections.EMPTY_LIST;	}