Unable to open bucket via Java 2.0 SDK

Hi there
I am trying to interact with CBGB via Java 2.0 SDK. But whether I try

Bucket bucket = cluster.openBucket(mybucketname);
or
Bucket bucket = cluster.openBucket();// Default bucket
I am getting java.lang.IllegalStateException: Could not load bucket configuration: INVALID_ARGUMENTS(400 Bad Request: missing required Host header)
at com.couchbase.client.core.config.loader.HttpLoader$1.call(HttpLoader.java:97)

Reproduce the bucket-opening calls with the Java 2.0 SDK and inspect the request associated with HttpLoader.java:97, especially how the Host header is supplied. Confirm the server and client agree on the bucket configuration request, then verify that both named-bucket and default-bucket opening no longer fail with the missing Host header error.

Written by the indexing model from the issue text.