#37 "java.net.SocketException: Socket is closed" in next Session.connect()

[dgu]

Hello!

I've been using Jsch 0.1.54.

Here are the steps:

1- session.connect() --> works
2- session.disconnect() --> works
3- session.connect() --> "java.net.SocketException: Socket is closed"

are subsequet connect calls not supported in Jsch ?

Thanks in advance!

[dgu]

Hello!

I found a problem in my socket factory that It was trying to reuse socket closed by JSch.

Here are the results of my test cases:

With socket factory:

1- session.connect() --> works
2- session.disconnect() --> works
immediately after disconnect
3- session.connect() --> "java.net.ConnectException: Cannot assign requested address"
1 minute later:
4- session.connect() --> "com.jcraft.jsch.JSchException: Packet corrupt"

I'm not sure; but, it looks JSch can not handle disconnect properly and I got " Cannot assign requested address" message.

Without socket factory:

1- session.connect() --> works
2- session.disconnect() --> works
3- session.connect() --> "com.jcraft.jsch.JSchException: Packet corrupt"

It still looks that reconnecting to same Session is not supported with socket factory and without socket factory.

Workaround:

Create a new Session instance for each connection.

[dgu]

Th above test cases are done after I fixed my socket factory.

[dgu]

Even if I create new Session instance in each connection "java.net.ConnectException: Cannot assign requested address" happened again. It is a problem in my socket factory.

The real problem is that if Session instance is reconnected then "com.jcraft.jsch.JSchException: Packet corrupt" happens.

Workaround:

Create a new Session instance for each connection.