Unable to get classes from one-jar about classutil HOT 1 CLOSED

This is problematic. One-Jar creates, in effect, a jar of jars, with custom One-Jar-provided classes and a classloader that knows how to dig your real classes out of the One-Jar consolidation.

There's certainly a "way" (several ways, in fact) to write code to make ClassUtil work with this kind of packaging mechanism, but I'm not convinced it's worth the effort. There are other "fat jar" mechanisms out there that don't use this kind of odd approach.

For instance, sbt-assembly also generates fat jars that can be run with java -jar thejar.jar, but they're flattened jars that contain all your dependencies—regular jars, in other words, that contain all the classes in all your dependencies. An sbt-assembly-created jar doesn't add special classes or use a special class loader; it's just a regular jar. There's a Maven Assembly Plugin that does the same thing with a Maven build.

I really don't like the One-Jar approach. Maven Assembly and sbt-assembly are much simpler (with far fewer moving parts in the final packaged jar).

At the moment, I'm disinclined to spend the time supporting One-Jar. If there's enough demand, I may reconsider.

from classutil.