Prevent a rare situation where wait() waits for ever because notifyAll() signal is not ever received. 
Prevent a rare situation where wait() waits for ever because notifyAll() signal is not ever received. 


git-svn-id: ac804e38dcddf5e42ac850d29d9218b7df6087b7@460411 13f79535-47bb-0310-9956-ffa450edef68

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