public String generateKey(WikiContext ctxt, MailItem item) { Account user = ctxt.octxt.getAuthenticatedUser();
public String generateKey(Account user, MailItem item) {
	public String generateKey(WikiContext ctxt, MailItem item) {		Account user = ctxt.octxt.getAuthenticatedUser();		String auth;		if (user == null)			auth = "guest";		else			auth = user.getId();		StringBuilder buf = new StringBuilder();		buf.append(auth).append(SEP).append(item.getMailboxId()).append(SEP).append(item.getId());		return buf.toString();	}