IntelliJ: Including jars in a jar artifact

Answer 1

IDEA doesn't support it yet, you can use Ant integration to package your jar (either by unpacking all the jars into the temp folder and then packaging the project output plus this temp folder into the single jar or by using some Ant task like jarjar).

If you want this feature to appear in the future IDEA versions, please vote for the request.

Answer 2

Having the dependency JARs included in your JAR should allow yoru code to run successfully. You probably don't have the JARs on your classpath.