전자정부 3.6.0 으로 바꾼이후 프로젝트를 내리니 갑자기 오류가 났다.

정보: Destroying ProtocolHandler ["ajp-bio-8009"]

2017-02-07 10:22:03,619 ERROR Could not unregister MBeans for org.apache.logging.log4j2:type="WebappClassLoader\n  context: \n  delegate: false\n  repositories:\n    /WEB-INF/classes/\n----------> Parent Classloader:\njava.net.URLClassLoader@503d58b2\n",component=ContextSelector javax.management.InstanceNotFoundException: org.apache.logging.log4j2:type="WebappClassLoader\n  context: \n  delegate: false\n  repositories:\n    /WEB-INF/classes/\n----------> Parent Classloader:\njava.net.URLClassLoader@503d58b2\n",component=ContextSelector

     at com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.getMBean(Unknown Source)

     at com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.exclusiveUnregisterMBean(Unknown Source)

     at com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.unregisterMBean(Unknown Source)

     at com.sun.jmx.mbeanserver.JmxMBeanServer.unregisterMBean(Unknown Source)

     at org.apache.logging.log4j.core.jmx.Server.unregisterAllMatching(Server.java:312)

     at org.apache.logging.log4j.core.jmx.Server.unregisterContextSelector(Server.java:267)

     at org.apache.logging.log4j.core.jmx.Server.unregisterLoggerContext(Server.java:235)

     at org.apache.logging.log4j.core.jmx.Server.unregisterLoggerContext(Server.java:217)

     at org.apache.logging.log4j.core.LoggerContext.stop(LoggerContext.java:213)

     at org.apache.logging.log4j.core.LoggerContext$1.run(LoggerContext.java:185)

     at org.apache.logging.log4j.core.util.DefaultShutdownCallbackRegistry$1.run(DefaultShutdownCallbackRegistry.java:100)

     at org.apache.logging.log4j.core.util.DefaultShutdownCallbackRegistry.run(DefaultShutdownCallbackRegistry.java:74)

     at java.lang.Thread.run(Unknown Source)

뭘까...... 아직 알 수 없다.