//    /left
    //       /[sibling -> right]
    //    /right
    //       /[sibling -> left]
    java.nio.file.Path root = createTempDirectory("ClassPathTest");
    try {
      java.nio.file.Path left = createDirectory(root.resolve("left"));
      createFile(left.resolve("some.txt"));

      java.nio.file.Path right = createDirectory(root.resolve("right"));
      createFile(right.resolve("another.txt"));

      System.setProperty(JAVA_CLASS_PATH.key(), oldClassPath);
    }
  }

  private static boolean contentEquals(URL left, URL right) throws IOException {
    return Resources.asByteSource(left).contentEquals(Resources.asByteSource(right));
  }

  private static class Nested {}


  public void testNulls() throws IOException {