STORM-2101: fixes npe in compute-executors in nimbus#1694
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asfgit merged 1 commit intoapache:masterfrom Sep 23, 2016
Merged
STORM-2101: fixes npe in compute-executors in nimbus#1694asfgit merged 1 commit intoapache:masterfrom
asfgit merged 1 commit intoapache:masterfrom
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We observed compute-executors can throw NPE while shutting down a topology sporadically.
joinMaps (join-maps) will NPE if one of the maps is nil. The only one that can be nil in this case is component->executors.