code: @Override
  	public boolean getIfNewer(String resourceName, File destination,
  			long timestamp) throws TransferFailedException,
  			ResourceDoesNotExistException, AuthorizationException {
  		throw new UnsupportedOperationException( "Not currently supported: getIfNewer" );
  	}
docs: /* (non-Javadoc)
  @see org.apache.maven.wagon.Wagon#getIfNewer(java.lang.String, java.io.File, long)