}
  }

  public void testCreateParentDirs_multipleParentsNeeded() throws IOException {
    File file = file(getTempDir(), "grandparent", "parent", "nonexistent.file");
    File parent = file.getParentFile();
    File grandparent = parent.getParentFile();
    assertFalse(grandparent.exists());
    Files.createParentDirs(file);
    assertTrue(parent.exists());
  }

    Path path = tempDir.resolve("grandparent/parent/nonexistent.file");
    Path parent = path.getParent();
    Path grandparent = parent.getParent();
    assertFalse(Files.exists(grandparent));
    assertFalse(Files.exists(parent));

    MoreFiles.createParentDirectories(path);
    assertTrue(Files.exists(parent));
    assertTrue(Files.exists(grandparent));
  }

    }
  }

  public void testCreateParentDirs_multipleParentsNeeded() throws IOException {
    File file = file(getTempDir(), "grandparent", "parent", "nonexistent.file");
    File parent = file.getParentFile();
    File grandparent = parent.getParentFile();
    assertFalse(grandparent.exists());
    Files.createParentDirs(file);
    assertTrue(parent.exists());
  }

    URL url1 = new URL("file:/a");
    URL url2 = new URL("file:/b");
    URLClassLoader grandParent = new URLClassLoader(new URL[] {url1}, null);
    URLClassLoader parent = new URLClassLoader(new URL[] {url2}, grandParent);
    assertThat(ClassPath.getClassPathEntries(new ClassLoader(parent) {}))
        .containsExactly(new File("/a"), grandParent, new File("/b"), parent);
  }

    URL url1 = new URL("file:/a");
    URL url2 = new URL("file:/b");
    URLClassLoader grandParent = new URLClassLoader(new URL[] {url1}, null);
    URLClassLoader parent = new URLClassLoader(new URL[] {url2}, grandParent);
    assertThat(ClassPath.getClassPathEntries(new ClassLoader(parent) {}))
        .containsExactly(new File("/a"), grandParent, new File("/b"), parent);
  }