@Override
    public URL getResource(String path, Class<?> parent) {
        if (parent == null) {
            return Thread.currentThread().getContextClassLoader().getResource(path);
        } else {
            return parent.getResource(path);
        }
    }
Default implementation of {@link ResourceLoader}. 
Loads from classpath.
jme3-core/src/main/java/com/jme3/util/res/DefaultResourceLoader.java