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Posted to users@tomcat.apache.org by 张钧荣 <10...@qq.com> on 2018/04/02 09:41:00 UTC

A tomcat log output problem

Hello !
    My project reported an error related to tomcat logging module. The exception information is as follows:
Apr  2 11:31:27 knowledgebase java: Exception in thread "main" java.lang.reflect.InvocationTargetException
Apr  2 11:31:27 knowledgebase java: Caused by: java.lang.ClassNotFoundException: org.apache.logging.log4j.core.impl.ThrowableProxy
Apr  2 11:39:44 knowledgebase java: Exception in thread "Thread-4" java.lang.NoClassDefFoundError: org/apache/catalina/Lifecycle$SingleUse
Apr  2 15:26:49 knowledgebase java: Exception in thread "Thread-4" java.lang.NoClassDefFoundError: org/apache/catalina/Lifecycle$SingleUse
Apr  2 15:55:18 knowledgebase java: Exception in thread "Thread-4" java.lang.NoClassDefFoundError: org/apache/catalina/Lifecycle$SingleUse
Apr  2 16:29:52 knowledgebase java: Exception in thread "http-nio-8082-exec-8" java.lang.NoClassDefFoundError: org/apache/logging/log4j/core/impl/ThrowableProxy
Apr  2 16:29:56 knowledgebase java: Exception in thread "Thread-4" java.lang.NoClassDefFoundError: org/apache/catalina/Lifecycle$SingleUse
Apr  2 17:08:29 knowledgebase java: Exception in thread "Thread-4" java.lang.NoClassDefFoundError: org/apache/catalina/Lifecycle$SingleUse
How can I fix it?

Best wishes,
zjr

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