Github user jinxliu commented on the issue: https://github.com/apache/zeppelin/pull/2634 This PR has two commits, https://github.com/apache/zeppelin/pull/2634/commits/ec68d12437611dd6fb817fa058020bb926b7e163 is to enhance the error message parse and display, the second commit is https://github.com/apache/zeppelin/pull/2634/commits/d20872c5014e66ffcaf9d3bb51193ca3023bce92 for NPE bug fix when returned dataset is empty.
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