logback 1.1.2 发布了，该版本创建了抽象方法 createOutputStream 作为 SyslogBaseAppender 的扩展LOGBACK-890，此外还包括：
Removed deprecated constructors in SocketAppender and related classes.
Fixed incorrect date format in SyslogAppender. (LOGBACK-936)
Fixed NullPointerException when substituting blank variables (LOGBACK-959)
Fixed NullPointerException that occurs when stopping a SyslogAppender that did not properly initialize, e.g., due to a hostname resolution failure. (LOGBACK-960)
Use fair locking in OutputStreamAppender. Patch provided by Sergey Bykov. (LOGBACK-268)
In case of missing included files, IncludeAction no longer prints a stack trace but prints a warning instead. (LOGBACK-954)
Logback是由log4j创始人设计的又一个开源日志 组件。logback当前分成三个模块：logback-core,logback- classic和logback-access。logback-core是其它两个模块的基础模块。logback-classic是log4j的一个 改良版本。此外logback-classic完整实现SLF4J API使你可以很方便地更换成其它日志系统如log4j或JDK14 Logging。logback-access访问模块与Servlet容器集成提供通过Http来访问日志的功能。
项目主页：http://logback.qos.ch/
下载地址：http://logback.qos.ch/download.html
来自:开源中国社区
