Exception in thread "main" com.jcraft.jsch.JSchException: session is down about janalyse-ssh HOT 3 OPEN

[deleted comment]

Code:
    val ssh = SSH("10.140.1.1", "test", "testpwd")
    println(ssh.jschsession.isConnected)
    val cmd = ssh.execute("cmd /c cd")

Log:
true
Exception in thread "main" java.lang.ExceptionInInitializerError
    at Tes.main(Tes.scala)
Caused by: com.jcraft.jsch.JSchException: session is down
    at com.jcraft.jsch.Channel.sendChannelOpen(Channel.java:762)
    at com.jcraft.jsch.Channel.connect(Channel.java:151)
    at fr.janalyse.ssh.SSHExec.<init>(SSHExec.scala:17)
    at fr.janalyse.ssh.SSH.execOnceWithStatus(SSH.scala:301)
    at fr.janalyse.ssh.SSH.execOnce(SSH.scala:283)
    at fr.janalyse.ssh.SSH.execute(SSH.scala:273)
    at Tes$.Con(Tes.scala:60)
    at Tes$.<init>(Tes.scala:18)
    at Tes$.<clinit>(Tes.scala)

environment:
Scala 2.10.3
JASSH 0.9.13
Windows 8.1
JRE 7

 additional note - going directly through jsch works fine:

val session = jsch.getSession("test", "10.140.1.1", 22);

            session.setPassword("testpwd")

            val config = new java.util.Properties();

            config.put("StrictHostKeyChecking", "no");

            session.setConfig(config);

            session.connect();
            val cmd="cmd /c dir"
            val ch = session.openChannel("exec").asInstanceOf[ChannelExec]
    ch.setCommand(cmd)
    val res = ch.getInputStream()

    ch.connect
    println (session.isConnected())
    println (scala.io.Source.fromInputStream(res).mkString)