ClassLoaderUtils doesn't support spaces between paths or URLs in the paths

ClassLoaderUtils.getCustomClassLoader() splits a module path list on a comma, but doesn't trim the individual entries.

Also in ClassLoaderUtils.getURLsForClasspath(), it is assumed that the paths are Files, but they could also already be URLs. Logic should be added to check if the path is already a valid URL, and add it to the list if so.