Creates a new instance of URLClassLoader for the specified URLs and parent class loader. If a security manager is installed, the loadClass method of the URLClassLoader returned by this method will invoke the SecurityManager.checkPackageAccess method before loading the class.

Parameters:

urls		the URLs to search for classes and resources
parent		the parent class loader for delegation

Returns:  the resulting class loader

Exceptions:

NullPointerException

if urls is null.