public void removeLoader(final Class<? extends AssetLoader> loaderType) {
        // Synchronized access must be used for any ops on classToLoaderMap
        // Find the loader ImplThreadLocal for this class
        synchronized (classToLoaderMap) {
            // Remove it from the class->loader map
            ImplThreadLocal local = classToLoaderMap.remove(loaderType);
            if (local == null)
                return;
            // Remove it from the extension->loader map
            for (String extension : local.getExtensions()) {
                extensionToLoaderMap.remove(extension);
            }
        }
    }
Returns the AssetLoader registered for the given extension
of the current thread.
@return AssetLoader registered with addLoader.
jme3-core/src/main/java/com/jme3/asset/ImplHandler.java