I'm trying to launch a slave on a Mainframe / zOS 1.12 system. I suspect that I am encountering some kind of codepage issue, but I am not sure. Below is the slave log during the launch.

[03/15/12 08:26:48] [SSH] Starting sftp client.
[03/15/12 08:26:48] [SSH] Copying latest slave.jar...
[03/15/12 08:26:48] [SSH] Copied 257,564 bytes.
[03/15/12 08:26:48] [SSH] Starting slave process: cd '/tmp' && /usr/lpp/java/J6.0/bin/java -Dfile.encoding=ISO8859-1 -jar slave.jar
<===[JENKINS REMOTING CAPACITY]===>Exception in thread "main" java.io.StreamCorruptedException: invalid stream header: B055002D
at java.io.ObjectInputStream.readStreamHeader(ObjectInputStream.java:797)
at java.io.ObjectInputStream.<init>(ObjectInputStream.java:294)
at hudson.remoting.ObjectInputStreamEx.<init>(ObjectInputStreamEx.java:40)
at hudson.remoting.Channel.<init>(Channel.java:431)
at hudson.remoting.Channel.<init>(Channel.java:366)
at hudson.remoting.Channel.<init>(Channel.java:327)
at hudson.remoting.Channel.<init>(Channel.java:323)
at hudson.remoting.Channel.<init>(Channel.java:315)
at hudson.remoting.Launcher.main(Launcher.java:405)
at hudson.remoting.Launcher.runWithStdinStdout(Launcher.java:366)
at hudson.remoting.Launcher.run(Launcher.java:206)
at hudson.remoting.Launcher.main(Launcher.java:168)
ERROR: Connection terminated
ERROR: Unexpected error in launching a slave. This is probably a bug in Jenkins.
java.io.IOException: Unexpected termination of the channel
at hudson.remoting.Channel$ReaderThread.run(Channel.java:1133)
Caused by: java.io.EOFException
at java.io.ObjectInputStream$BlockDataInputStream.peekByte(Unknown Source)
hudson.remoting.RequestAbortedException: hudson.remoting.RequestAbortedException: java.io.IOException: Unexpected termination of the channel
at java.io.ObjectInputStream.readObject0(Unknown Source)
at java.io.ObjectInputStream.readObject(Unknown Source)
at hudson.remoting.Channel$ReaderThread.run(Channel.java:1127)
at hudson.remoting.Request.call(Request.java:149)
at hudson.remoting.Channel.call(Channel.java:681)
at hudson.slaves.SlaveComputer.setChannel(SlaveComputer.java:346)
at hudson.slaves.SlaveComputer.setChannel(SlaveComputer.java:314)
at hudson.plugins.sshslaves.SSHLauncher.startSlave(SSHLauncher.java:454)
at hudson.plugins.sshslaves.SSHLauncher.launch(SSHLauncher.java:293)
at hudson.slaves.SlaveComputer$1.call(SlaveComputer.java:200)
at java.util.concurrent.FutureTask$Sync.innerRun(Unknown Source)
at java.util.concurrent.FutureTask.run(Unknown Source)
at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(Unknown Source)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
at java.lang.Thread.run(Unknown Source)
Caused by: hudson.remoting.RequestAbortedException: java.io.IOException: Unexpected termination of the channel
at hudson.remoting.Request.abort(Request.java:273)
at hudson.remoting.Channel.terminate(Channel.java:732)
at hudson.remoting.Channel$ReaderThread.run(Channel.java:1157)
Caused by: java.io.IOException: Unexpected termination of the channel
at hudson.remoting.Channel$ReaderThread.run(Channel.java:1133)
Caused by: java.io.EOFException
at java.io.ObjectInputStream$BlockDataInputStream.peekByte(Unknown Source)
at java.io.ObjectInputStream.readObject0(Unknown Source)
at java.io.ObjectInputStream.readObject(Unknown Source)
at hudson.remoting.Channel$ReaderThread.run(Channel.java:1127)
[03/15/12 08:26:49] [SSH] Connection closed.
ERROR: [03/15/12 08:26:49] slave agent was terminated
java.io.IOException: Unexpected termination of the channel
at hudson.remoting.Channel$ReaderThread.run(Channel.java:1133)
Caused by: java.io.EOFException
at java.io.ObjectInputStream$BlockDataInputStream.peekByte(Unknown Source)
at java.io.ObjectInputStream.readObject0(Unknown Source)
at java.io.ObjectInputStream.readObject(Unknown Source)
at hudson.remoting.Channel$ReaderThread.run(Channel.java:1127)