Clint Wylie 83514958db remove unnecessary lock in ForegroundCachePopulator leading to a lot of contention (#8116)
* remove unecessary lock in ForegroundCachePopulator leading to a lot of contention

* mutableboolean, javadocs,document some cache configs that were missing

* more doc stuff

* adjustments

* remove background documentation
2019-07-23 10:57:59 -07:00
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