if( local == null && remote == null ) return true; if( local == null || remote == null ) return false;
	public boolean compare(IResource local, IResourceVariant remote) {		ISVNLocalResource a = SVNWorkspaceRoot.getSVNResourceFor(local);		ISVNRemoteResource b = (ISVNRemoteResource)remote;		try {			return a.getStatus().getLastChangedRevision().getNumber() == b.getLastChangedRevision().getNumber();		} catch (SVNException e) {			// TODO Auto-generated catch block			e.printStackTrace();		}		return false;			}