Creates a new SecureClassLoader using the specified parent class loader for delegation.
If there is a security manager, this method first
 calls the security manager's checkCreateClassLoader
 method  to ensure creation of a class loader is allowed.
 
parent | the parent ClassLoader | 
SecurityException |   if a security manager exists and its
             checkCreateClassLoader method doesn't allow
             creation of a class loader. | 
SecurityManager.checkCreateClassLoader
Diagram: ClassLoader