The code bellow let you check if a path exists in ZooKeeper.

Calling the method "CuratorFramework::checkExists" will return a "Stat" object.
If the path doesn't exist it will return "null".

In order for the code bellow to work:
► Make sure to update the "CONNECT_STRING" variable with your information.

Here's an example of how to check if a path exists in ZooKeeper:

final String CONNECT_STRING = "localhost:2181";

final int SESSION_TIMEOUT_MS = Integer.valueOf(60 * 1000);
final int CONNECTION_TIMEOUT_MS = Integer.valueOf(15 * 1000);
final RetryPolicy RETRY_POLICY = new RetryOneTime(1000);

// -- CuratorFrameworkFactory::newClient
final CuratorFramework curatorFramework = CuratorFrameworkFactory.newClient(CONNECT_STRING, SESSION_TIMEOUT_MS, CONNECTION_TIMEOUT_MS, RETRY_POLICY);

// -- CuratorFramework::start
curatorFramework.start();

// -- CuratorFramework::checkExists
final String path = "/abc/abc1";
final Stat stat = curatorFramework.checkExists().forPath(path);

System.out.println(stat);

// -- CuratorFramework::close
curatorFramework.close();