[logback-dev] LoggerContext logger cache

LoggerContext uses a Hashtable for the logger cache. A Google on "hashtable ConcurrentHashMap performance" shows that ConcurrentHashMap should perform much better under load. I looked at doing this in my fork and can't see any reason why it would be a problem. I did see a post where ConcurrentHashMap is quite a bit larger than Hashtable, but since there is only going to be one of these that shouldn't be a problem. http://www.informit.com/guides/content.aspx?g=java&seqNum=246 Ralph