abstract public  void authenticate(AuthenticationProtocolClient authentication,
    String serviceToStart) throws TerminatedStateException, IOException

 abstract public boolean canAuthenticate()

 public boolean canPrompt() 
{
        return prompt != null;
}

 public SshAuthenticationPrompt getAuthenticationPrompt() 
{
        return prompt;
}

 abstract public String getMethodName()

 abstract public Properties getPersistableProperties()

 public String getUsername() 
{
        return username;
}

 abstract public  void reset()

 public  void setAuthenticationPrompt(SshAuthenticationPrompt prompt) throws AuthenticationProtocolException 
{
        //prompt.setInstance(this);
        this.prompt = prompt;
}

 abstract public  void setPersistableProperties(Properties properties)

 public  void setUsername(String username) 
{
        this.username = username;
}