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