mo_sql schrieb:

What do you mean by window? A command shell (or whatever that is called on
Windows) or a Java Frame or JFrame?

Maybe try to access the Process' input/error streams and exit code to figure out
more about a potential error?

Does "java -jar C:\Jdevelopwer\bin\name.jar" work at the command prompt?

If you do not want to fork a new java process, you can also consider to load the
class in your JAR using a ClassLoader, finding the main class and calling main()
on it, possibly using reflection. Or simply add the jar to the classpath and
just call main() if you know the class name at compile time.

Cheers,
Simon

You losy me with that last sentence.  If the code above isn't working,
what happens when your run the command:

   java -jar C:\JDeveloper\bin\name.jar

from a command prompt?  Does the application launch then?

why do you need jdeveloper (an IDE) to run your jar?

there are 2 options:

1.start jdeveloper then go to the load menu, then to the run menu.
2.  java -jar name.jar

steve