Manages creation of classpath for class files placed in zip and jar files. It should be the only way of creating them as it provides caching.
This type of classpath is closely related to the support for JSR-223. Its usage can be observed e.g. when running: jrunscript -classpath scala-compiler.jar;scala-reflect.jar;scala-library.jar -l scala with a particularly prepared scala-library.jar. It should have all classes listed in the manifest like e.g. this entry: Name: scala/Function2$mcFJD$sp.class