tree c3263399e3ebd8023fdcf088379d608cefe86706
parent a3665a6a8218cb19eef6bbddcbbc317258f616f1
author Tom <tw201207@gmail.com> 1477510639 +0200
committer Tom <tw201207@gmail.com> 1477577246 +0200

Issue #1076: load commit cache in a background thread

* Make the CommitCache fully thread-safe. It was using a
  ConcurrentHashMap containing lists, but then handed out these lists.
  It also did multiple operations on that map that as a whole should
  be atomic.
  
* Use isEmpty() instead of size() == 0.

* Run the loading of the commit cache in a background daemon thread