code: public boolean supportsFeature(Jid jid, CharSequence feature) throws NoResponseException, XMPPErrorException, NotConnectedException, InterruptedException {
          return supportsFeatures(jid, feature);
      }
docs: Queries the remote entity for it's features and returns true if the given feature is found.
  
  @param jid the JID of the remote entity
  @param feature
  @return true if the entity supports the feature, false otherwise
  @throws XMPPErrorException
  @throws NoResponseException
  @throws NotConnectedException
  @throws InterruptedException