Weird behaviour using executeCommand

I'm using SessionChannelClient.executeCommand to run a bash script called 
test.sh on a remote machine.

test.sh - Version I
-------------------
ls -la > temp.out

test.sh - Version II
--------------------
$ORACLE_HOME/bin/sqlplus enerbench/hcnbrn@chaos @temp.sql > temp.out

With version I, everything works find and a file temp.out is created with the 
contents of the directory.
With version II of test.sh, a file called temp.out is created, but with size 
0. If I execute test.sh from a PuTTY terminal session, everything works fine 
and the temp.out file is created.

I've got no idea what causes this, but it seems like the SSH 
connection/channel (?) is broken before the sqlplus command can finish 
executing.

Any help would be appreciated.

Thanks


Here's the a snippet of my code:

SshClient ssh = new SshClient();
ssh.setSocketTimeout(30000);

SshConnectionProperties properties = new SshConnectionProperties();
properties.setHost(extractionSetup.getSshHost().getHostName());
properties.setPrefPublicKey("ssh-dss");
  
ssh.connect(properties, new IgnoreHostKeyVerification());	  	  

PasswordAuthenticationClient pwd = new PasswordAuthenticationClient();
               
pwd.setUsername(extractionSetup.getSshHost().getUsername());	      
pwd.setPassword(extractionSetup.getSshHost().getPassword());
         
int result = ssh.authenticate(pwd);

if (result != AuthenticationProtocolState.COMPLETE) {
	throw new SSHHostException("Invalid username/password.");
} else { 
	ByteArrayInputStream bais = new ByteArrayInputStream
(extractionSetup.getSQLPlusScript().getBytes());
	ScpClient scpClient = new ScpClient(ssh, true, null);
	scpClient.put(bais, bais.available(), "temp.sql", "temp.sql");	  
		
  	
  	SessionChannelClient session = ssh.openSessionChannel();	
	  
    
  	session.executeCommand("./test.sh");
  




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