Github user selvinsource commented on the issue:
https://github.com/apache/zeppelin/pull/3092
@felixcheung
I see what you mean now and I added explicitly to the Java Interpreter doc
that the Java interpreter do not support it.
Eventually, when we move the Java interpreter implementation to JShell we
can look into adding a JavaContext that allows to share variables between
paragraph as you mentioned.
@zjffdu
I have rebased once more for an easy merge to the master.---
