Java Programming

Hi All,
I have written a few classes (around 10-20) and put them in a jar myproduct.jar.
I am using a few open source library jars (apache commons jars to be specific).

My question is, is there any way I can combine all these jars together to create a single jar say "combined.jar" and just invoke my main class of myproduct.jar so that I do not have to put these jar files in class path every time I want to run my main class.

Also this simplifies the way I can ship the application as a single jar file.

I have tried to put all the jar files together and create a single jar, but does not seem to work.


Any pointers or idea will be great.

I am using
Win XP
JDK 1.5
Eclipse 3.3 (if it matters at all).


Thanks in advance,
Ayusman