When I tried to log in AIX server, through a java code/application, I am getting the below exception,

    INFO: J2SSH:KEY_EXCHANGE_FAILURE
    com.maverick.ssh.SshException: EOF received from remote side [Unknown cause]
        at com.maverick.ssh2.TransportProtocol.b(Unknown Source)
        at com.maverick.ssh2.TransportProtocol.j(Unknown Source)
        at com.maverick.ssh2.TransportProtocol.nextMessage(Unknown Source)
        at com.maverick.ssh.components.jce.DiffieHellmanGroup1Sha1.performClientExchange(Unknown Source)
        at com.maverick.ssh2.TransportProtocol.e(Unknown Source)
        at com.maverick.ssh2.TransportProtocol.processMessage(Unknown Source)
        at com.maverick.ssh2.TransportProtocol.startTransportProtocol(Unknown Source)
        at com.maverick.ssh2.Ssh2Client.connect(Unknown Source)
        at com.maverick.ssh.SshConnector.connect(Unknown Source)
        at com.maverick.ssh.SshConnector.connect(Unknown Source)            

Server details :

• Server type : AIX
• Mode of connection : SSH
• Authentication : password based authentication. Not key based.

I surfed in internet, but not able get clear answer for this issue. Please some one help me. Thanks in advance.