Java Code To Access Windows Machine From Unix Machine

Feb 28, 2014

I have a requirement where I have to send a file from a local system to unix box(present on client side) using java code.I have developed a code that is successfully sending the file from local system to client side unix box (I am connecting to client side unix box using VPN) provided I run the code in my eclipse IDE present in local system. But when I am running the same code in the unix box it is throwing null pointer exception.Might be the unix system is not recognising the local system. Please find the code.
 
package abc;
import java.io.File;
import java.io.FileInputStream;
import java.io.FilenameFilter;
import java.io.IOException;
import java.util.Properties;
import com.jcraft.jsch.Channel;

[Code] ....

Error on unix box which I am getting is :-
 
Inside sftpConnection method
llllllll
fffffffffffff
Connection Successfull
Channel Connection Succesfull
aaaaa
Inside findFile method
Exception in thread "main" java.lang.NullPointerException
        at abc.TranferFile.sftpConnection(TranferFile.java:58)
        at abc.TranferFile.main(TranferFile.java:21)

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I have developed a code to connecting remote windows M/C from local M/C by using SSH2 (ganymed-ssh2-build209.jar) API. when I run the code its giving below error. Is there any other way to connect remote windows system using java code.
 
Exception.
 
java.io.IOException: There was a problem while talking to <host name>:22
  at ch.ethz.ssh2.Connection.connect(Connection.java:642)
  at ch.ethz.ssh2.Connection.connect(Connection.java:460)
  at Connect.RemoteServer.ConnectWindowsServer.runCommand(ConnectWindowsServer.java:55)
  at Connect.RemoteServer.ConnectWindowsServer.main(ConnectWindowsServer.java:27)
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[Code] ....
 
JAVA Code

import ch.ethz.ssh2.Connection;
import ch.ethz.ssh2.Session;
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       System.out.println("setting authentication info completed for host=" + host );
 
[Code] .....

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Here in detail:

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[code]...

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[code]...

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Java Code:

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[Code] ....

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Java Code:

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Java Code: import javax.swing.*;
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[code]...

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[code]....

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[code]....

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