waitFor returns 255 on HP Unix

[Jakir]

Hi

waitFor() method returns value 255 on HP Unix when I try to start
netscape through Runtime.getRuntime().exec("netscape") method.
I also tried to give the full path but same results.
I am able to start netscape from C program or from commandline but it
fails when I try to do same thing from Java application.

It works fine on Solaris.
What is the meaning of value 255. Where I can get the information
regarding the value returned by the waitFor() method.

Regards
Jakir

 

[Paul Lutus]

Hi

waitFor() method returns value 255 on HP Unix when I try to start
netscape through Runtime.getRuntime().exec("netscape") method.

Most likely, this is a -1, but you don't say how you stored or printed it.

I also tried to give the full path but same results.
I am able to start netscape from C program or from commandline but it
fails when I try to do same thing from Java application.

Post the code and say where the application is located on your system.

It works fine on Solaris.
What is the meaning of value 255. Where I can get the information
regarding the value returned by the waitFor() method.

Uhh, the documentation?

http://java.sun.com/j2se/1.4.2/docs/api/java/lang/Process.html#waitFor()

 

[Jakir]

import java.io.IOException;


class javaHello {
public static void main(String[] args) {
try
{
Process p = Runtime.getRuntime().exec("netscape");
/* Also tried full path */
try
{
int exitCode = p.waitFor();
if(exitCode != 0)
System.out.println(exitCode);
}
catch(InterruptedException x)
{
System.err.println("Caught:" + x);
}
}
catch(IOException e)
{
e.printStackTrace();
System.out.println("Failed to start.\n" + e);
}
}
}