public String getAuthenticationMethods(String username, String servicename)
			throws SshException {
		sendRequest(username, servicename, "none", null);

		try {
			readMessage();
			transport
					.disconnect(TransportProtocol.PROTOCOL_ERROR,
							"Unexpected response received from Authentication Protocol");
			throw new SshException(
					"Unexpected response received from Authentication Protocol",
					SshException.PROTOCOL_VIOLATION);
		} catch (AuthenticationResult result) {
			state = result.getResult();
			EventServiceImplementation
					.getInstance()
					.fireEvent(
							(new Event(
									this,
									J2SSHEventCodes.EVENT_AUTHENTICATION_METHODS_RECEIVED,
									true))
									.addAttribute(
											J2SSHEventCodes.ATTRIBUTE_AUTHENTICATION_METHODS,
											result.getAuthenticationMethods()));
			return result.getAuthenticationMethods();
		}
	}
public String getAuthenticationMethods ( String username , String servicename ) throws SshException { sendRequest ( username , servicename , "none" , null ) ; try { readMessage ( ) ; transport . disconnect ( TransportProtocol . PROTOCOL_ERROR , "Unexpected response received from Authentication Protocol" ) ; throw new SshException ( "Unexpected response received from Authentication Protocol" , SshException . PROTOCOL_VIOLATION ) ; } catch ( AuthenticationResult result ) { state = result . getResult ( ) ; EventServiceImplementation . getInstance ( ) . fireEvent ( ( new Event ( this , J2SSHEventCodes . EVENT_AUTHENTICATION_METHODS_RECEIVED , true ) ) . addAttribute ( J2SSHEventCodes . ATTRIBUTE_AUTHENTICATION_METHODS , result . getAuthenticationMethods ( ) ) ) ; return result . getAuthenticationMethods ( ) ; } }
Get a list of available authentication methods for the user. It is
advisable to call this method after contsructing the protocol instance
and setting a <a href="BannerDisplay.html">BannerDisplay</a>. If the
server has a banner message to display it is most likely that the server
will send it before completing this list.

@param username
@param servicename
@return a comma delimited list of authentication methods.
@throws SshException