How to resolve classes with source src-jar library in Eclipse?

I have added this jar file to my projec开发者_StackOverflow社区t's build path under "libraries": http://sunet.dl.sourceforge.net/project/jeplite/jeplite/jeplite-0.8.7/jeplite-0.8.7a-src.jar and cannot get Eclipse to resolve ANY of the included classes.

Packages are visible, but no classes.

Error message is: "JEP cannot be resolved to a type"

In eclipse, it should be on the build path if its a source tree .... Remember , a jar is just a glorified zip file, so be sure that the binaries are actually in your jar file. The steps to test are

1) unzip the jar file

2) if its source : then either try adding it to your build path, or just directly import the source folders into your project

3) if you see class files in the jar, then it should be okay to add them to "libraries"

This is only a jar containing the source code. You need a jar with the compiled classes in it. Try the jeplite-0.8.7a-bin.jar.