Tomcat reports SEVERE ThreadLocal issues upon shutdown ------------------------------------------------------ Key: LBCLASSIC-183 URL: http://jira.qos.ch/browse/LBCLASSIC-183 Project: logback-classic Issue Type: Bug Affects Versions: 0.9.18 Environment: Tomcat 6.0.24, JDK 6, Windows or Solaris Reporter: Anthony Whitford Assignee: Logback dev list I have a webapp that uses Logback, deployed on a Tomcat instance. Upon shutdown, Tomcat reports this and doesn't completely shut down: SEVERE: A web application created a ThreadLocal with key of type [org.slf4j.impl.CopyOnInheritThreadLocal] (value [org.slf4j.impl.CopyOnInheritThreadLocal@1bb35 b]) and a value of type [null] (value [null]) but failed to remove it when the web application was stopped. To prevent a memory leak, the ThreadLocal has been forcibly removed. Feb 3, 2010 10:49:22 PM org.apache.catalina.loader.WebappClassLoader clearThreadLocalMap SEVERE: A web application created a ThreadLocal with key of type [null] (value [ch.qos.logback.core.UnsynchronizedAppenderBase$1@10e2558]) and a value of type [java.lang.Boolean] (value [false]) but failed to remove it when the web application was stopped. To prevent a memory leak, the ThreadLocal has been forcibly removed. Is LogBack leaking resources? -- This message is automatically generated by JIRA. - If you think it was sent incorrectly contact one of the administrators: http://jira.qos.ch/secure/Administrators.jspa - For more information on JIRA, see: http://www.atlassian.com/software/jira