final ClassLoader thisClassLoader = ClassLoaderUtil.class.getClassLoader();
        if (targetClassLoader != null && thisClassLoader != null) {
            if (isAncestor(thisClassLoader, targetClassLoader)) {
                return thisClassLoader;
            }
            return targetClassLoader;
        }
        if (targetClassLoader != null) {
            return targetClassLoader;

        assertThat(ClassLoaderUtil.isAncestor(cl3, cl2), is(true));
        assertThat(ClassLoaderUtil.isAncestor(cl3, cl1), is(true));
        assertThat(ClassLoaderUtil.isAncestor(cl2, cl1), is(true));

        assertThat(ClassLoaderUtil.isAncestor(cl1, cl2), is(not(true)));
        assertThat(ClassLoaderUtil.isAncestor(cl1, cl3), is(not(true)));
    }