@Override
	protected Class<?> loadClass(String name, boolean resolve) throws ClassNotFoundException {
		throw new ClassNotFoundException();
	}
A ClassLoader that can't find or load anything. Useful for insulating a (parent last) child ClassLoader from the main runtime
classpath, in cases where it is expected that a class or resource will be resolved by the child ClassLoader. In effect,
using an instance of this class as a parent ClassLoader is equivalent to using no-parent, as it would always fail.

@author Eric Bottard
spring-xd-module/src/main/java/org/springframework/xd/module/support/NullClassLoader.java