return null;
            }
        });
        final String root = new File("/").getCanonicalPath();
        assertEquals(root + "Program Files" + File.separator + "foo.zip", ZipFileUtil.toZipFilePath(url));
    }

        return create(new File(toZipFilePath(zipUrl)));
    }

    /**
     * Returns the path of the Zip file specified by the URL.
     *
     * @param zipUrl
     *            URL pointing to the Zip file. Must not be {@literal null}.
     * @return The path of the Zip file specified by the URL.
     */
    public static String toZipFilePath(final URL zipUrl) {

        addTraverserFactory("jar", JarFileTraverser::new);
        addTraverserFactory("zip", (url, rootPackage,
                rootDir) -> new JarFileTraverser(JarFileUtil.create(new File(ZipFileUtil.toZipFilePath(url))), rootPackage, rootDir));
        addTraverserFactory("code-source",
                (url, rootPackage, rootDir) -> new JarFileTraverser(URLUtil.create("jar:file:" + url.getPath()), rootPackage, rootDir));