We are getting NoClassDefFoundErrors during Tomcat graceful shutdown process (i.e. using catalina.sh stop command). We are using Tomcat version 6.0.44.
Note that this error can not be reproduced consistently. Another question suggests class loader related problems during execution of JVM shutdown hook. But in this case, the error is raised during the execution of the ServletFilter::destroy(...) method.
Could you please provide any insight?
java.lang.NoClassDefFoundError: com/google/common/cache/RemovalCause
at com.google.common.cache.LocalCache$Segment.remove(LocalCache.java:3147)
at com.google.common.cache.LocalCache.remove(LocalCache.java:4236)
at org.apache.curator.framework.imps.NamespaceWatcherMap.remove(NamespaceWatcherMap.java:71)
at org.apache.curator.framework.imps.CuratorFrameworkImpl.clearWatcherReferences(CuratorFrameworkImpl.java:189)
at org.apache.curator.framework.recipes.cache.PathChildrenCache.close(PathChildrenCache.java:376)
at org.apache.hadoop.security.token.delegation.ZKDelegationTokenSecretManager.stopThreads(ZKDelegationTokenSecretManager.java:456)
at org.apache.hadoop.security.token.delegation.web.DelegationTokenManager.destroy(DelegationTokenManager.java:152)
at org.apache.hadoop.security.token.delegation.web.DelegationTokenAuthenticationHandler.destroy(DelegationTokenAuthenticationHandler.java:153)
at org.apache.hadoop.security.authentication.server.AuthenticationFilter.destroy(AuthenticationFilter.java:401)
at org.apache.solr.servlet.SolrHadoopAuthenticationFilter.destroy(SolrHadoopAuthenticationFilter.java:177)
at org.apache.catalina.core.ApplicationFilterConfig.release(ApplicationFilterConfig.java:360)
at org.apache.catalina.core.StandardContext.filterStop(StandardContext.java:4111)
at org.apache.catalina.core.StandardContext.stop(StandardContext.java:4880)
at org.apache.catalina.startup.HostConfig.checkResources(HostConfig.java:1279)
at org.apache.catalina.startup.HostConfig.check(HostConfig.java:1385)
at org.apache.catalina.startup.HostConfig.lifecycleEvent(HostConfig.java:307)
at org.apache.catalina.util.LifecycleSupport.fireLifecycleEvent(LifecycleSupport.java:142)
at org.apache.catalina.core.ContainerBase.backgroundProcess(ContainerBase.java:1392)
at org.apache.catalina.core.ContainerBase$ContainerBackgroundProcessor.processChildren(ContainerBase.java:1656)
at org.apache.catalina.core.ContainerBase$ContainerBackgroundProcessor.processChildren(ContainerBase.java:1665)
at org.apache.catalina.core.ContainerBase$ContainerBackgroundProcessor.run(ContainerBase.java:1645)
at java.lang.Thread.run(Thread.java:745)
Caused by: java.lang.ClassNotFoundException: com.google.common.cache.RemovalCause
at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1680)
at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1526)