Has anyone seen the severe errors below in their Tomcat catalina.log file after shutting Tomcat down? Does anyone know what to do about it? It causes problems when restarting the XWiki web application. Thanks in advance for your help. Mike [mschaffner@ebo-elab01 logs]$ ../bin/version.sh Using CATALINA_BASE: /usr/share/apache-tomcat-7.0.35 Using CATALINA_HOME: /usr/share/apache-tomcat-7.0.35 Using CATALINA_TMPDIR: /usr/share/apache-tomcat-7.0.35/temp Using JRE_HOME: /usr/lib/jvm/java-1.6.0-openjdk.x86_64/jre Using CLASSPATH: /usr/share/apache-tomcat-7.0.35/bin/bootstrap.jar:/usr/share/apache-tomcat-7.0.35/bin/tomcat-juli.jar Server version: Apache Tomcat/7.0.35 Server built: Jan 10 2013 10:52:49 Server number: 7.0.35.0 OS Name: Linux OS Version: 2.6.43.8-1.fc15.x86_64 Architecture: amd64 JVM Version: 1.6.0_22-b22 JVM Vendor: Sun Microsystems Inc. [mschaffner@ebo-elab01 logs]$ cat catalina.out Jan 31, 2013 2:13:02 PM org.apache.catalina.core.AprLifecycleListener init INFO: The APR based Apache Tomcat Native library which allows optimal performance in production environments was not found on the java.library.path: /usr/lib/jvm/java-1.6.0-openjdk-1.6.0.0.x86_64/jre/lib/amd64/server:/usr/lib/jvm/java-1.6.0-openjdk-1.6.0.0.x86_64/jre/lib/amd64:/usr/lib/jvm/java-1.6.0-openjdk-1.6.0.0.x86_64/jre/../lib/amd64:/usr/java/packages/lib/amd64:/usr/lib64:/lib64:/lib:/usr/lib Jan 31, 2013 2:13:02 PM org.apache.coyote.AbstractProtocol init INFO: Initializing ProtocolHandler ["http-bio-8080"] Jan 31, 2013 2:13:02 PM org.apache.coyote.AbstractProtocol init INFO: Initializing ProtocolHandler ["ajp-bio-8009"] Jan 31, 2013 2:13:02 PM org.apache.catalina.startup.Catalina load INFO: Initialization processed in 1064 ms Jan 31, 2013 2:13:02 PM org.apache.catalina.core.StandardService startInternal INFO: Starting service Catalina Jan 31, 2013 2:13:02 PM org.apache.catalina.core.StandardEngine startInternal INFO: Starting Servlet Engine: Apache Tomcat/7.0.35 Jan 31, 2013 2:13:02 PM org.apache.catalina.startup.HostConfig deployDirectory INFO: Deploying web application directory /usr/share/apache-tomcat-7.0.35/webapps/examples Jan 31, 2013 2:13:03 PM org.apache.catalina.startup.HostConfig deployDirectory INFO: Deploying web application directory /usr/share/apache-tomcat-7.0.35/webapps/ROOT Jan 31, 2013 2:13:03 PM org.apache.catalina.startup.HostConfig deployDirectory INFO: Deploying web application directory /usr/share/apache-tomcat-7.0.35/webapps/xwiki 2013-01-31 14:13:16,811 [localhost-startStop-1] WARN o.x.e.i.ServletEnvironment - No permanent directory configured. Using temporary directory [/usr/share/apache-tomcat-7.0.35/temp]. 2013-01-31 14:13:20,955 [localhost-startStop-1] INFO istributionInitializerListener - Distribution up to date Jan 31, 2013 2:13:21 PM org.apache.catalina.startup.HostConfig deployDirectory INFO: Deploying web application directory /usr/share/apache-tomcat-7.0.35/webapps/host-manager Jan 31, 2013 2:13:21 PM org.apache.catalina.startup.HostConfig deployDirectory INFO: Deploying web application directory /usr/share/apache-tomcat-7.0.35/webapps/manager Jan 31, 2013 2:13:21 PM org.apache.catalina.startup.HostConfig deployDirectory INFO: Deploying web application directory /usr/share/apache-tomcat-7.0.35/webapps/docs Jan 31, 2013 2:13:21 PM org.apache.coyote.AbstractProtocol start INFO: Starting ProtocolHandler ["http-bio-8080"] Jan 31, 2013 2:13:21 PM org.apache.coyote.AbstractProtocol start INFO: Starting ProtocolHandler ["ajp-bio-8009"] Jan 31, 2013 2:13:21 PM org.apache.catalina.startup.Catalina start INFO: Server startup in 18581 ms Jan 31, 2013 2:17:50 PM org.apache.catalina.core.StandardServer await INFO: A valid shutdown command was received via the shutdown port. Stopping the Server instance. Jan 31, 2013 2:17:50 PM org.apache.coyote.AbstractProtocol pause INFO: Pausing ProtocolHandler ["http-bio-8080"] Jan 31, 2013 2:17:50 PM org.apache.coyote.AbstractProtocol pause INFO: Pausing ProtocolHandler ["ajp-bio-8009"] Jan 31, 2013 2:17:50 PM org.apache.catalina.core.StandardService stopInternal INFO: Stopping service Catalina Jan 31, 2013 2:17:50 PM org.apache.catalina.loader.WebappClassLoader clearReferencesThreads SEVERE: The web application [/xwiki] appears to have started a thread named [com.google.inject.internal.util.$Finalizer] but has failed to stop it. This is very likely to create a memory leak. Jan 31, 2013 2:17:50 PM org.apache.catalina.loader.WebappClassLoader clearReferencesThreads SEVERE: The web application [/xwiki] appears to have started a thread named [Core extension repository updater] but has failed to stop it. This is very likely to create a memory leak. Jan 31, 2013 2:17:50 PM org.apache.catalina.loader.WebappClassLoader clearReferencesThreads SEVERE: The web application [/xwiki] appears to have started a thread named [Job Manager daemon thread] but has failed to stop it. This is very likely to create a memory leak. Jan 31, 2013 2:17:50 PM org.apache.catalina.loader.WebappClassLoader clearReferencesThreads SEVERE: The web application [/xwiki] appears to have started a thread named [Distribution initialization] but has failed to stop it. This is very likely to create a memory leak. Jan 31, 2013 2:17:50 PM org.apache.catalina.loader.WebappClassLoader clearReferencesThreads SEVERE: The web application [/xwiki] appears to have started a thread named [Timer-440] but has failed to stop it. This is very likely to create a memory leak. Jan 31, 2013 2:17:50 PM org.apache.catalina.loader.WebappClassLoader clearReferencesThreads SEVERE: The web application [/xwiki] appears to have started a thread named [New I/O client boss #441] but has failed to stop it. This is very likely to create a memory leak. Jan 31, 2013 2:17:50 PM org.apache.catalina.loader.WebappClassLoader clearReferencesThreads SEVERE: The web application [/xwiki] appears to have started a thread named [New I/O client worker #441-1] but has failed to stop it. This is very likely to create a memory leak. Jan 31, 2013 2:17:50 PM org.apache.catalina.loader.WebappClassLoader clearReferencesThreads SEVERE: The web application [/xwiki] appears to have started a thread named [AsyncHttpClient-Reaper] but has failed to stop it. This is very likely to create a memory leak. Jan 31, 2013 2:17:50 PM org.apache.catalina.loader.WebappClassLoader clearReferencesThreads SEVERE: The web application [/xwiki] appears to have started a thread named [AsyncHttpClient-Reaper] but has failed to stop it. This is very likely to create a memory leak. Jan 31, 2013 2:17:50 PM org.apache.catalina.loader.WebappClassLoader clearReferencesThreads SEVERE: The web application [/xwiki] appears to have started a thread named [AsyncHttpClient-Callback] but has failed to stop it. This is very likely to create a memory leak. Jan 31, 2013 2:17:50 PM org.apache.catalina.loader.WebappClassLoader clearReferencesThreads SEVERE: The web application [/xwiki] appears to have started a thread named [AsyncHttpClient-Reaper] but has failed to stop it. This is very likely to create a memory leak. Jan 31, 2013 2:17:50 PM org.apache.catalina.loader.WebappClassLoader clearReferencesThreads SEVERE: The web application [/xwiki] appears to have started a thread named [AsyncHttpClient-Reaper] but has failed to stop it. This is very likely to create a memory leak. Jan 31, 2013 2:17:50 PM org.apache.catalina.loader.WebappClassLoader checkThreadLocalMapForLeaks SEVERE: The web application [/xwiki] created a ThreadLocal with key of type [com.google.inject.internal.InjectorImpl$1] (value [com.google.inject.internal.InjectorImpl$1@19290b6f]) and a value of type [java.lang.Object[]] (value [[Ljava.lang.Object;@55adb150]) but failed to remove it when the web application was stopped. Threads are going to be renewed over time to try and avoid a probable memory leak. Jan 31, 2013 2:17:50 PM org.apache.catalina.loader.WebappClassLoader checkThreadLocalMapForLeaks SEVERE: The web application [/xwiki] created a ThreadLocal with key of type [com.sun.xml.bind.v2.ClassFactory$1] (value [com.sun.xml.bind.v2.ClassFactory$1@7e542721]) and a value of type [java.util.WeakHashMap] (value [{class org.xwiki.extension.repository.xwiki.model.jaxb.ExtensionAuthor=java.lang.ref.WeakReference@544a43d2, class java.util.ArrayList=java.lang.ref.WeakReference@57aabb39, class org.xwiki.extension.repository.xwiki.model.jaxb.ExtensionDependency=java.lang.ref.WeakReference@9e9c826, class org.xwiki.extension.repository.xwiki.model.jaxb.License=java.lang.ref.WeakReference@53533bdf, class org.xwiki.extension.repository.xwiki.model.jaxb.ExtensionVersion=java.lang.ref.WeakReference@7d7fd835}]) but failed to remove it when the web application was stopped. Threads are going to be renewed over time to try and avoid a probable memory leak. Jan 31, 2013 2:17:50 PM org.apache.catalina.loader.WebappClassLoader checkThreadLocalMapForLeaks SEVERE: The web application [/xwiki] created a ThreadLocal with key of type [com.ning.http.client.providers.netty.NettyAsyncHttpProvider.ThreadLocalBoolean] (value [com.ning.http.client.providers.netty.NettyAsyncHttpProvider$ThreadLocalBoolean@2e24655f]) and a value of type [java.lang.Boolean] (value [false]) but failed to remove it when the web application was stopped. Threads are going to be renewed over time to try and avoid a probable memory leak. Jan 31, 2013 2:17:50 PM org.apache.catalina.loader.WebappClassLoader checkThreadLocalMapForLeaks SEVERE: The web application [/xwiki] created a ThreadLocal with key of type [org.sonatype.guice.bean.inject.BeanInjector$1] (value [org.sonatype.guice.bean.inject.BeanInjector$1@577b57a3]) and a value of type [boolean[]] (value [[Z@62b6bb33]) but failed to remove it when the web application was stopped. Threads are going to be renewed over time to try and avoid a probable memory leak. Jan 31, 2013 2:17:50 PM org.apache.catalina.loader.WebappClassLoader checkThreadLocalMapForLeaks SEVERE: The web application [/xwiki] created a ThreadLocal with key of type [org.jboss.netty.util.CharsetUtil$1] (value [org.jboss.netty.util.CharsetUtil$1@4abc43e6]) and a value of type [java.util.IdentityHashMap] (value [{US-ASCII=sun.nio.cs.US_ASCII$Encoder@591686f7}]) but failed to remove it when the web application was stopped. Threads are going to be renewed over time to try and avoid a probable memory leak. Jan 31, 2013 2:17:50 PM org.apache.catalina.loader.WebappClassLoader checkThreadLocalMapForLeaks SEVERE: The web application [/xwiki] created a ThreadLocal with key of type [com.sun.xml.bind.v2.runtime.Coordinator$1] (value [com.sun.xml.bind.v2.runtime.Coordinator$1@55f6efd2]) and a value of type [java.lang.Object[]] (value [[Ljava.lang.Object;@46faf015]) but failed to remove it when the web application was stopped. Threads are going to be renewed over time to try and avoid a probable memory leak. Jan 31, 2013 2:17:50 PM org.apache.catalina.loader.WebappClassLoader checkThreadLocalMapForLeaks SEVERE: The web application [/xwiki] created a ThreadLocal with key of type [java.lang.ThreadLocal] (value [java.lang.ThreadLocal@4a8171b]) and a value of type [java.util.Stack] (value [[org.xwiki.context.ExecutionContext@3784f000]]) but failed to remove it when the web application was stopped. Threads are going to be renewed over time to try and avoid a probable memory leak. Jan 31, 2013 2:17:50 PM org.apache.catalina.loader.WebappClassLoader checkThreadLocalMapForLeaks SEVERE: The web application [/xwiki] created a ThreadLocal with key of type [java.lang.ThreadLocal] (value [java.lang.ThreadLocal@78a8ac79]) and a value of type [java.util.Stack] (value [[org.xwiki.logging.event.LogQueueListener@9d379d2]]) but failed to remove it when the web application was stopped. Threads are going to be renewed over time to try and avoid a probable memory leak. Jan 31, 2013 2:17:50 PM org.apache.catalina.loader.WebappClassLoader checkThreadLocalMapForLeaks SEVERE: The web application [/xwiki] created a ThreadLocal with key of type [java.lang.ThreadLocal] (value [java.lang.ThreadLocal@4a8171b]) and a value of type [java.util.Stack] (value [[org.xwiki.context.ExecutionContext@1ae2cf08]]) but failed to remove it when the web application was stopped. Threads are going to be renewed over time to try and avoid a probable memory leak. Jan 31, 2013 2:17:50 PM org.apache.catalina.loader.WebappClassLoader checkThreadLocalMapForLeaks SEVERE: The web application [/xwiki] created a ThreadLocal with key of type [com.ning.http.client.providers.netty.NettyAsyncHttpProvider.ThreadLocalBoolean] (value [com.ning.http.client.providers.netty.NettyAsyncHttpProvider$ThreadLocalBoolean@2e24655f]) and a value of type [java.lang.Boolean] (value [true]) but failed to remove it when the web application was stopped. Threads are going to be renewed over time to try and avoid a probable memory leak. Jan 31, 2013 2:17:50 PM org.apache.catalina.loader.WebappClassLoader checkThreadLocalMapForLeaks SEVERE: The web application [/xwiki] created a ThreadLocal with key of type [java.lang.ThreadLocal] (value [java.lang.ThreadLocal@20862402]) and a value of type [org.infinispan.context.SingleKeyNonTxInvocationContext] (value [SingleKeyNonTxInvocationContext{flags=null}]) but failed to remove it when the web application was stopped. Threads are going to be renewed over time to try and avoid a probable memory leak. Jan 31, 2013 2:17:50 PM org.apache.coyote.AbstractProtocol stop INFO: Stopping ProtocolHandler ["http-bio-8080"] Jan 31, 2013 2:17:50 PM org.apache.coyote.AbstractProtocol stop INFO: Stopping ProtocolHandler ["ajp-bio-8009"] Jan 31, 2013 2:17:50 PM org.apache.coyote.AbstractProtocol destroy INFO: Destroying ProtocolHandler ["http-bio-8080"] Jan 31, 2013 2:17:50 PM org.apache.coyote.AbstractProtocol destroy INFO: Destroying ProtocolHandler ["ajp-bio-8009"] [mschaffner@ebo-elab01 logs]$