addClassLoader(knownClassLoaders, registry.getGradleApiClassLoader(), "gradle-api:" + gradleVersion);
        addClassLoader(knownClassLoaders, registry.getGradleCoreApiClassLoader(), "gradle-core-api:" + gradleVersion);
        addClassLoader(knownClassLoaders, registry.getPluginsClassLoader(), "plugins:" + gradleVersion);

        return knownClassLoaders;
    }

     * Returns the implementation class loader for the built-in plugins.
     */
    ClassLoader getPluginsClassLoader();

    /**
     * Just the Gradle core API, no core plugins.
     */
    ClassLoader getGradleCoreApiClassLoader();

    /**
     * Returns a copy of the filter spec for the Gradle API Classloader.  This is expensive to calculate, so we create it once in
     * the build process and provide it to the worker.
     */

        return apiAndPluginsClassLoader;
    }

    @Override
    public ClassLoader getPluginsClassLoader() {
        return pluginsClassLoader;
    }

    @Override
    public ClassLoader getGradleCoreApiClassLoader() {
        return apiOnlyClassLoader;
    }

    @Override
    public FilteringClassLoader.Spec getGradleApiFilterSpec() {
        return new FilteringClassLoader.Spec(gradleApiSpec);
    }