this.classpathHasher = classpathHasher;
    }

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

    @Override

            classPath = addToClassPath(classPath, getClasspathForClass("org.w3c.dom.ElementTraversal"));
        }

        return doCreateClassLoader(name, getIsolatedSystemClassLoader(), classPath);
    }

    private ClassPath addToClassPath(ClassPath classPath, File file) {
        if (file != null) {