@Override
  public boolean exists(String path) throws IOException {
    return fs.exists(makePath(path));
  }
@Test
  public void testExists() throws IOException {
    System.out.println("pre-create test path");
    fs.mkdirs(new Path("test/registryTestNode"));

    System.out.println("Check for existing node");
    boolean exists = registry.exists("test/registryTestNode");
    Assert.assertTrue(exists);

    System.out.println("Check for  non-existing node");
    exists = registry.exists("test/nonExistentNode");
    Assert.assertFalse(exists);
  }