public JavaClass loadClass(String className) throws ClassNotFoundException {
public JavaClass loadClass(@NonNull String className) throws ClassNotFoundException { if (className == null) throw new IllegalArgumentException("className is null");
	public JavaClass loadClass(String className) throws ClassNotFoundException {		//if (className.indexOf('/') >= 0) throw new IllegalStateException();		JavaClass javaClass = findClass(className);		if (javaClass == null) {			if (DEBUG) {				System.out.println("Looking up " + className + " on classpath");				dumpStack();			}			javaClass = urlClassPath.lookupClass(className);			storeClass(javaClass);		}		return javaClass;	}