module-info encountered in the cmds, libs or config is not added to jmod file.
It is a kind of corner case, but looks like a bug.

To reproduce:
1. compile a module into classes;
2. jmod create --cmds classes --config classes --libs classes --class-path classes mod.jmod
3. jmod list mod.jmod
Module-info.class will be filtered out from the native, bin, conf directories.