fix NullPointerException Caused by manageChildren#8991

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ASCE1885 wants to merge 9 commits intofacebook:masterfrom

ASCE1885:master

Commits on Jul 22, 2016

Commits on Jul 24, 2016

Merge pull request #1 from facebook/master
ASCE1885
authored
fix NullPointerException Caused by manageChildren
顾浩鑫
committed
@Nullable should be @Nonnull
顾浩鑫
committed
Inefficient use of keySet iterator instead of entrySet iterator
顾浩鑫
committed

Commits on Jul 25, 2016