Java SDK: Creating multiple buckets with results in 'java.util.concurrent.Timeout'

Creating multiple buckets within the same Java SDK code results in java.lang.RuntimeException: java.util.concurrent.TimeoutException

Steps:

1. Couchbase cluster is not having zero buckets created in it.
2. Created cluster object and authenticated it from Java SDK
3. Calls insertBucket() to created 'bucket-1', 'bucket-2', 'bucket-3' in sequential manner

Observation:

"bucket-1" created in the cluster and insertBucket() is called for "bucket-2". But this call wait for some time and after sometime it exits with the concurrent.Timeout exception.

If the already created bucket "bucket-1" is deleted from UI during the wait time of "bucket-2", bucket creation is successful for "bucket-2". But same thing happens for "bucket-3" again.

Attaching the java client code create_bucket.java  and console log sdk.log for reference.