Loading module in private classloader

createClassloaderAndLoadModule.java

public final class ModuleLoader {
    public synchronized void loadModule(){
        final Path modulePath = downloadModule(); //1. download the module.jar
         createClassloaderAndLoadModule(modulePath); //2. create classloader and use that to load the jar
    }

    private void createClassloaderAndLoadModule(final Path modulePath){
        final URLClassLoader yelpySearchClassloader = new YelpSearchPrivateClassLoader(
             new URL[]{modulePath.toUri().toURL()},
             this.getClass().getClassLoader()    //3. Create URLClassloader
        );
         scorerFactory = Class.forName("com.yelp.search.module.YelpSearchScorerFactoryImpl",
                                        true,
                                        yelpySearchClassloader)
              .asSubclass(ScorerFactory.class)
              .getDeclaredConstructor(new Class[]{Environment.class})
              .newInstance(environment);  //4. Create instance of ScorerFactory that return the Scorer
    }
     public Scorer createScorer(Map<String, Object> params) {
          return scorerFactory.createScorer(params);  //5. Scorer factory returning scorer, called once per query
     }
}