This class loader is used to load classes and resources from a search
path of URLs referring to both JAR files and directories. Any jar:
scheme URL (see java.net.JarURLConnection) is assumed to refer to a
JAR file. Any file: scheme URL that ends with a '/' is assumed to
refer to a directory. Otherwise, the URL is assumed to refer to a JAR file
which will be opened as needed.
This class loader supports the loading of classes and resources from the contents of a multi-release JAR file that is referred to by a given URL.
The AccessControlContext of the thread that created the instance of URLClassLoader will be used when subsequently loading classes and resources.
The classes that are loaded are by default granted permission only to access the URLs specified when the URLClassLoader was created.
extends