[logback-dev] [qos-ch/logback] e55752: use concurrentHashMap

[Ceki Gulcu]

  Branch: refs/heads/simpleloggerperf
  Home:   https://github.com/qos-ch/logback
  Commit: e55752559c2400b23e642066ec100449760d36e8
      https://github.com/qos-ch/logback/commit/e55752559c2400b23e642066ec100449760d36e8
  Author: Ceki Gulcu <ceki at qos.ch>
  Date:   2013-03-25 (Mon, 25 Mar 2013)

  Changed paths:
    M logback-classic/src/test/java/org/slf4j/impl/SimpleLoggerFactory.java

  Log Message:
  -----------
  use concurrentHashMap