Is acquire(time,unit) method expected to return false when zookeeper is not available?seems that it would hang up - apache-curator

Question

InterProcessMutex zLock=new InterProcessMutex(curatorFramework,lockPath);
zlock.acquire(time,unit);
just a simple example. I try to test the Network jitter problem, so I start the service,connect zookeeper and start the curator client, and then disable the network.
after that, I create a request which would call the zlock.acquire(time,unit).
It shows that the request return error response at least 1min later.
to debug the codes,the program stop in "createsTheLock" method.
In fact, I guess the expectation is to return false when zookeeper is not available.
Thanks for answerring the question!
update the question:
It's the base setting:
RetryPolicy retryPolicy=new ExponentialBackoffRetry(1000,3);
CuratorFramework curatorFramework= CuratorFrameworkFactory.builder().connectionTimeoutMs(15000).sessionTimeoutMs(60000).connectString(CommonConstant.ZK_CONNECT_HOSTS).retryPolicy(retryPolicy).build();
and it's the log:
2020-08-09 10:27:12.582 INFO 91181 --- [224.71.42:2181)] org.apache.zookeeper.ClientCnxn : Opening socket connection to server 10.224.71.42/10.224.71.42:2181. Will not attempt to authenticate using SASL (unknown error)
2020-08-09 10:27:12.582 ERROR 91181 --- [224.71.42:2181)] o.apache.zookeeper.ClientCnxnSocketNIO : Unable to open socket to 10.224.71.42/10.224.71.42:2181
2020-08-09 10:27:12.582 INFO 91181 --- [224.71.42:2181)] org.apache.zookeeper.ClientCnxn : Socket error occurred: 10.224.71.42/10.224.71.42:2181: Network is unreachable
2020-08-09 10:27:13.456 ERROR 91181 --- [tor-Framework-0] o.a.c.f.imps.CuratorFrameworkImpl : Background operation retry gave up
org.apache.zookeeper.KeeperException$ConnectionLossException: KeeperErrorCode = ConnectionLoss
at org.apache.zookeeper.KeeperException.create(KeeperException.java:102) ~[zookeeper-3.5.6.jar:3.5.6]
at org.apache.curator.framework.imps.CuratorFrameworkImpl.checkBackgroundRetry(CuratorFrameworkImpl.java:851) [curator-framework-5.1.0.jar:5.1.0]
at org.apache.curator.framework.imps.CuratorFrameworkImpl.performBackgroundOperation(CuratorFrameworkImpl.java:999) [curator-framework-5.1.0.jar:5.1.0]
at org.apache.curator.framework.imps.CuratorFrameworkImpl.backgroundOperationsLoop(CuratorFrameworkImpl.java:952) [curator-framework-5.1.0.jar:5.1.0]
at org.apache.curator.framework.imps.CuratorFrameworkImpl.access$300(CuratorFrameworkImpl.java:66) [curator-framework-5.1.0.jar:5.1.0]
at org.apache.curator.framework.imps.CuratorFrameworkImpl$4.call(CuratorFrameworkImpl.java:342) [curator-framework-5.1.0.jar:5.1.0]
at java.util.concurrent.FutureTask.run(FutureTask.java:266) [na:1.8.0_241]
at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180) [na:1.8.0_241]
at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293) [na:1.8.0_241]
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) [na:1.8.0_241]
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) [na:1.8.0_241]
at java.lang.Thread.run(Thread.java:748) [na:1.8.0_241]
2020-08-09 10:27:13.457 ERROR 91181 --- [tor-Framework-0] o.a.c.f.imps.CuratorFrameworkImpl : Background retry gave up
org.apache.curator.CuratorConnectionLossException: KeeperErrorCode = ConnectionLoss
at org.apache.curator.framework.imps.CuratorFrameworkImpl.performBackgroundOperation(CuratorFrameworkImpl.java:981) [curator-framework-5.1.0.jar:5.1.0]
at org.apache.curator.framework.imps.CuratorFrameworkImpl.backgroundOperationsLoop(CuratorFrameworkImpl.java:952) [curator-framework-5.1.0.jar:5.1.0]
at org.apache.curator.framework.imps.CuratorFrameworkImpl.access$300(CuratorFrameworkImpl.java:66) [curator-framework-5.1.0.jar:5.1.0]
at org.apache.curator.framework.imps.CuratorFrameworkImpl$4.call(CuratorFrameworkImpl.java:342) [curator-framework-5.1.0.jar:5.1.0]
at java.util.concurrent.FutureTask.run(FutureTask.java:266) [na:1.8.0_241]
at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180) [na:1.8.0_241]
at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293) [na:1.8.0_241]
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) [na:1.8.0_241]
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) [na:1.8.0_241]
at java.lang.Thread.run(Thread.java:748) [na:1.8.0_241]
2020-08-09 10:27:14.684 INFO 91181 --- [26.102.59:2181)] org.apache.zookeeper.ClientCnxn : Opening socket connection to server 10.226.102.59/10.226.102.59:2181. Will not attempt to authenticate using SASL (unknown error)
2020-08-09 10:27:14.684 ERROR 91181 --- [26.102.59:2181)] o.apache.zookeeper.ClientCnxnSocketNIO : Unable to open socket to 10.226.102.59/10.226.102.59:2181
2020-08-09 10:27:14.684 INFO 91181 --- [26.102.59:2181)] org.apache.zookeeper.ClientCnxn : Socket error occurred: 10.226.102.59/10.226.102.59:2181: Network is unreachable
The request just hang up until 59s later, then return response;