Hello, @comtefprobtp, @alien
I am convinced that Cloudera will solve this issue quickly. But if Cloudera needs my help I repeat the post I sent the other day.
I already found the problem and I have a version that is OK.
I can not pass the changes due to Cloudera policies.
But if Cloudera needs my collaboration contact me in the way you think is the right one.
Cloudera is investigating. While we can address the NPE result directly, we are interested in learning what conditions lead to this to see if there may be something else that needs improvement. I'll check back soon to let you know where we are.
We are still looking at it and deciding on the best solution. Mainly we are making sure that we understand the underlying cause of why an object can be null now when in pre-5.10 versions this problem wasn't reported.