[xstream-scm] [jira] (XSTR-705) buildMap method of FieldDictionary can be slow in highly concurrent environment - cached element not required to be synched

Mon, 24 Sep 2012 01:32:40 -0700

Rico Neubauer commented on Bug XSTR-705

Thanks for fixing this - it showed-up in one of my tests as well as bottleneck.
Using your fix decreases the blocking situations a lot, however cannot resolve it completely, see attached monitoring statistics.
I will attach a fix which removes contention completely for read-access, however it uses ConcurrentHashMaps and as far as I know you want to keep Java1.4 compatibilty, which would not allow their usage.
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