[logback-dev] [qos-ch/logback] 2f9fe0: ensure JDK 1.6 compatibility

[Ceki Gulcu]

  Branch: refs/heads/master
  Home:   https://github.com/qos-ch/logback
  Commit: 2f9fe0a74c08b0c7328bd164ec09181a1dd377e8
      https://github.com/qos-ch/logback/commit/2f9fe0a74c08b0c7328bd164ec09181a1dd377e8
  Author: Ceki Gulcu <ceki at qos.ch>
  Date:   2016-03-03 (Thu, 03 Mar 2016)

  Changed paths:
    M logback-core/src/main/java/ch/qos/logback/core/rolling/helper/TimeBasedArchiveRemover.java

  Log Message:
  -----------
  ensure JDK 1.6 compatibility