jetty-12.0.x WebappClassloader addJars(Resource) incorrectly transforms into a CombinedResource

[janbartel]

jetty-12.0.x

The WebAppClassloader.addJars(Resource) method looks for all jar files inside the Resource (that is a directory), turning each of the jars into a String and calling addClassPath(String). That method is expecting either a single jar, or a comma separated list of jars. There are 2 bugs in this method:

1. if even a single jar is passed as the argument, a List<URI> is produced and passed to the ResourceFactory, which turns it into a CombinedResource. It should be just a single Resource.
2. if multiple jars are passed as the argument, it is incorrect to transform them into a CombinedResource. They are simply a list of different jar Resources, they are not a CombinedResource (which is a combination of resources, all of which are directories).

[janbartel]

Fixed.