[FLINK-9185] Potential null dereference in PrioritizedOperatorSubtaskState#resolvePrioritizedAlternatives

• Type: Bug
• Status: Resolved
• Priority: Minor
• Resolution: Fixed
• Fix Version/s: 1.7.0
• Labels: pull-request-available
• Assignee: Stephen Jason
• Reporter: Ted Yu
• Created: 16/Apr/18 16:19
• Updated: 22/Jul/18 13:14
• Resolved: 22/Jul/18 13:13

Description

        if (alternative != null
          && alternative.hasState()
          && alternative.size() == 1
          && approveFun.apply(reference, alternative.iterator().next())) {

The return value from approveFun.apply would be unboxed.
We should check that the return value is not null.

Issue Links

• links to: GitHub Pull Request #5894