protected ClassLoader doCreateClassLoader(String name, ClassLoader parent, ClassPath classPath) {
        ClassLoader classLoader = super.doCreateClassLoader(name, parent, classPath);
        hashCodes.put(classLoader, calculateClassLoaderHash(classPath));
        return classLoader;
    }

    @Override
    protected ClassLoader doCreateFilteringClassLoader(ClassLoader parent, FilteringClassLoader.Spec spec) {