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Manu Zhang commented on TOREE-497: ---------------------------------- Hi, [~kbates], I'm executing notebook with jupyter client API. Here is an example [an example|https://gist.github.com/manuzhang/31a38fc09bdc9583d23019c9ec332218] to reproduce the issue > Fail to executing empty cell > ---------------------------- > > Key: TOREE-497 > URL: https://issues.apache.org/jira/browse/TOREE-497 > Project: TOREE > Issue Type: Bug > Components: Kernel > Affects Versions: 0.3.0 > Reporter: Manu Zhang > Priority: Major > > Executing empty cell would throw > {code:java} > java.lang.ClassNotFoundException: java.lang.String cannot be cast to > scala.collection.immutable.Map > {code} > at {{ExecuteRequestRelay$packageFutureResponse}} > It seems {{Map}} is expected for {{ExecuteResult}} but a {{String}} is > returned when executing empty cell. -- This message was sent by Atlassian JIRA (v7.6.3#76005)