public static P4Revision getLastChange(Run<?, ?> run, TaskListener listener, String client) {
	P4Revision last = null;
 
	List<TagAction> actions = lastActions(run, listener);
	if (actions == null || client == null || client.isEmpty()) {
		return last;
	}
 
	// look for action matching view
	for (TagAction action : actions) {
		if (client.equals(action.getClient())) {
			last = action.getBuildChange();
		}
	}
 
	listener.getLogger().println("Found last change " + last.toString() + " on client " + client);
	return last;
}