process.waitFor() does not seem to return the right value

I am using the below code in my application ...

Proce开发者_开发知识库ss process = Runtime.getRuntime().exec(
    "perl " + perlScript + " " + project + " " + fileName);
:
:
:
result = process.waitFor();
:
:

and this result gives the code 2 every time.....while running the application.

what could be the reason for the "reason code" ???

Thanks In Advance

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The perl script that you call is returning the value 2. You need to look at the perl script to determine what that value means--there is no generic way to know why a given program returns a given value.