Unserializable FluentBackoff cause null pointer exception in Dataflow Runner#417
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Maybe it was meant to be final instead? Seems like it can be.
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[APPROVALNOTIFIER] This PR is APPROVED This pull-request has been approved by: khorshuheng, zhilingc The full list of commands accepted by this bot can be found here. The pull request process is described here DetailsNeeds approval from an approver in each of these files:
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Backoff variable has been mistakenly assigned the static modifier. This doesn't affect DirectRunner, but on Dataflow Runner this seems to result in Nullpointer exception.
Edited: FluentBackoff shouldn't have been setup on the constructor, as it is unserializable. Passing the backoff as function argument fixed this. Thanks to @zhilingc for helping me to identify this.