private void assertAppliedProposal(String contents, JavaCompletionProposal proposal, String completion) {
private void assertAppliedProposal(String contents, IJavaCompletionProposal proposal, String completion) {
	private void assertAppliedProposal(String contents, JavaCompletionProposal proposal, String completion) {		IDocument doc= new Document(contents);		proposal.apply(doc);		int offset2= contents.indexOf("//here");		String result= contents.substring(0, offset2) + completion + contents.substring(offset2);		assertEqualString(doc.get(), result);	}