public boolean isMultipleAllowed(String subdomain) {
        Boolean allowed = allowMultiple.get(subdomain);
        return allowed != null && allowed;
    }
public boolean isMultipleAllowed ( String subdomain ) { Boolean allowed = allowMultiple . get ( subdomain ) ; return allowed != null && allowed ; }
Returns if we want components to be able to connect multiple times to the
same JID. This is a custom Openfire extension and will not work with any
other XMPP server. Other XMPP servers should ignore this extra setting.

@param subdomain
the sub-domain.
@return True or false if we are allowing multiple connections.