run bat file within java

[Harry Steinke]

I have a bat file with works perfectly when run from Windows. When I try to call it within java I get a
java.lang.NoClassDefFoundError: javax/security/auth/callback/Callback
The bat file uses a vendor jar file.

The following is the bat file with specific info marked out for proprietary reasons.
java -Duser=xxxx -Dpassword=xxxxx -Dhost=xxxxxxxxxxx -Dport=##### -jar c:\xxxxxxxx.jar list agents matching (.*)

The code I am running in my app is:
Runtime.getRuntime().exec("cmd /C start " + [file path] + [bat file name]);

Any suggestions on how to resolve this or where to look for additional information would be appreciated
Thanks in advance.

[Paul Clapham]

That class is built into Java 1.4 and later, so it looks like in that particular environment your "java" command is causing a Java 1.3 JRE to be run.

[Harry Steinke]

That's interesting and confusing. I checked and my runtime and compiler are both set for 1.4.
Anything else you can think of that I could look at?
Thanks

[William Brogden]

Is there anything in that bat file that depends on the "current" directory?
Bill

[Douglas Kent]

Try explicitly setting the classpath in your bat file - that's probably just the first class to get loaded in that package, and it's not finding it.

[Harry Steinke]

Set the classpath in the bat file - same error.
I don't know of anything that is using a set directory location. There isn't anything in the bat file except where it points to the jar file that it is using.

[William Brogden]

Off-the-wall idea. Try running a bat file that does java -version

If Java runs at all it should be able to find a class that is in the standard library.
Bill

[Harry Steinke]

Well I'll be a ...
The java version that comes up from the bat file is 1.3.1.
I added a cd c:\\ line at the beginning of the bat file that points to my 1.4 version and it works.

Thanks for your help.