【发布时间】：2018-01-12 12:35:00
【问题描述】：
我有一个在 macOS Sierra 下的 Tomcat 8 中运行良好的 Web 应用程序。但是，我最近升级到 high sierra，然后应用程序部署失败。在catalina.out中可以看到如下日志，
11-Jan-2018 14:43:02.288 SEVERE [localhost-startStop-1] org.apache.catalina.core.StandardContext.startInternal One or more listeners failed to start. Full details will be found in the appropriate container log file
11-Jan-2018 14:43:02.306 SEVERE [localhost-startStop-1] org.apache.catalina.core.StandardContext.startInternal Context [/connect] startup failed due to previous errors
然后是 logger 上无限循环的堆栈跟踪，在 localhost.log 中看到 stackoverflow 错误，如下所示。该错误没有给出问题所在的任何线索（例如 bean 未正确连接等），因此很难进行故障排除。
11-Jan-2018 14:43:02.288 SEVERE [localhost-startStop-1]
org.apache.catalina.core.StandardContext.listenerStart Exception sending
context initialized event to listener instance of class
org.springframework.web.context.ContextLoaderListener
java.lang.StackOverflowError
at org.apache.log4j.Logger.<init>(Logger.java:37)
at org.apache.log4j.Log4jLoggerFactory.getLogger(Log4jLoggerFactory.java:43)
at org.apache.log4j.LogManager.getLogger(LogManager.java:45)
at org.slf4j.impl.Log4jLoggerFactory.getLogger(Log4jLoggerFactory.java:66)
at org.slf4j.LoggerFactory.getLogger(LoggerFactory.java:270)
at org.apache.log4j.Category.<init>(Category.java:57)
at org.apache.log4j.Logger.<init>(Logger.java:37)
at org.apache.log4j.Log4jLoggerFactory.getLogger(Log4jLoggerFactory.java:43)
at org.apache.log4j.LogManager.getLogger(LogManager.java:45)
at org.slf4j.impl.Log4jLoggerFactory.getLogger(Log4jLoggerFactory.java:66)
at org.slf4j.LoggerFactory.getLogger(LoggerFactory.java:270)
at org.apache.log4j.Category.<init>(Category.java:57)
at org.apache.log4j.Logger.<init>(Logger.java:37)
at org.apache.log4j.Log4jLoggerFactory.getLogger(Log4jLoggerFactory.java:43)
at org.apache.log4j.LogManager.getLogger(LogManager.java:45)
at org.slf4j.impl.Log4jLoggerFactory.getLogger(Log4jLoggerFactory.java:66)
at org.slf4j.LoggerFactory.getLogger(LoggerFactory.java:270)
at org.apache.log4j.Category.<init>(Category.java:57)
at org.apache.log4j.Logger.<init>(Logger.java:37)
at org.apache.log4j.Log4jLoggerFactory.getLogger(Log4jLoggerFactory.java:43)
at org.apache.log4j.LogManager.getLogger(LogManager.java:45)
at org.slf4j.impl.Log4jLoggerFactory.getLogger(Log4jLoggerFactory.java:66)
at org.slf4j.LoggerFactory.getLogger(LoggerFactory.java:270)
at org.apache.log4j.Category.<init>(Category.java:57)
at org.apache.log4j.Logger.<init>(Logger.java:37)
at org.apache.log4j.Log4jLoggerFactory.getLogger(Log4jLoggerFactory.java:43)
at org.apache.log4j.LogManager.getLogger(LogManager.java:45)
at org.slf4j.impl.Log4jLoggerFactory.getLogger(Log4jLoggerFactory.java:66)
at org.slf4j.LoggerFactory.getLogger(LoggerFactory.java:270)
at org.apache.log4j.Category.<init>(Category.java:57)
at org.apache.log4j.Logger.<init>(Logger.java:37)
at org.apache.log4j.Log4jLoggerFactory.getLogger(Log4jLoggerFactory.java:43)
at org.apache.log4j.LogManager.getLogger(LogManager.java:45)
at org.slf4j.impl.Log4jLoggerFactory.getLogger(Log4jLoggerFactory.java:66)
at org.slf4j.LoggerFactory.getLogger(LoggerFactory.java:270)
at org.apache.log4j.Category.<init>(Category.java:57)
at org.apache.log4j.Logger.<init>(Logger.java:37)
at org.apache.log4j.Log4jLoggerFactory.getLogger(Log4jLoggerFactory.java:43)
at org.apache.log4j.LogManager.getLogger(LogManager.java:45)
at org.slf4j.impl.Log4jLoggerFactory.getLogger(Log4jLoggerFactory.java:66)
at org.slf4j.LoggerFactory.getLogger(LoggerFactory.java:270)
at org.apache.log4j.Category.<init>(Category.java:57)
at org.apache.log4j.Logger.<init>(Logger.java:37)
at org.apache.log4j.Log4jLoggerFactory.getLogger(Log4jLoggerFactory.java:43)
at org.apache.log4j.LogManager.getLogger(LogManager.java:45)
有人见过这个问题吗？
感谢您提供的任何提示。
【问题讨论】：
-
再次查看堆栈跟踪后，它似乎表明与记录器相关的依赖周期问题，即。 log4j -> slf4j -> log4j。然后我检查了 Web 应用程序库中与记录器相关的 jar 文件，我发现了“log4j-over-slf4j-1.7.22.jar”和“slf4j-log4j12-1.7.5.jar”。然后我删除了“slf4j-log4j12-1.7.5.jar”，事情开始起作用了！我很高兴解决了这个问题，但我仍然不明白为什么在升级到 High Sierra 之前它会起作用。
标签： java tomcat web-applications macos-high-sierra