Invoke Powershell scripts from Java

Question

I want to invoke my powershell script from java. Can it be done. I tried with the following code, but the stream is not closing.

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;

public class TestPowershell {

    public static void main(String[] args) throws IOException 
    {
        Runtime runtime = Runtime.getRuntime();
        Process proc = runtime.exec("powershell C:\\testscript.ps1");
        InputStream is = proc.getInputStream();
        InputStreamReader isr = new InputStreamReader(is);
        BufferedReader reader = new BufferedReader(isr);
        String line;
        while ((line = reader.readLine()) != null)
        {
            System.out.println(line);
        }
        reader.close();
        proc.getOutputStream().close();
    }

}

Does java invoke a powershell script which performs create remote session and execute cmdlets?

Do we have support to invoke powershell scripts in java?

Anyone could you please help on this.

Awaiting for your responses.

Thanks, rammj

Answer 1

After starting the process ( runtime.exec() ), add a line to close the input stream of the process ( which JAVA calls output stream!!):

 proc.getOutputStream().close();

Answer 2

Now you can do it easily with jPowerShell

powerShell = PowerShell.openSession();

//Print results    
System.out.println(powerShell.executeScript("\"C:\\testscript.ps1\"").getCommandOutput());

powerShell.close();