java.util.ConcurrentModificationException: null

Spring JIRA | Richard Costine | 1 year ago
  1. 0

    GitHub comment 330#193276288

    GitHub | 9 months ago | mikeroda
    java.util.ConcurrentModificationException: null
  2. 0

    This error is now happening sporadically during our acceptance tests. It looks to be caused by an internal list of strings (in spring's DefaultListableBeanFactory) which is updated via another thread, while an Iterator (backed by that same list of strings) is cycling over it. If something is added (or deleted) to (or from) a collection while the collection is being iterated over, a ConcurrentModificationException will occur inside the next(). We have recently upgraded from Spring 3.1 to 4.1.6. With both Spring releases, we are using Akka and running in an OSGI container. When actors are instantiated, a spring createBean is done. That is where this sporadic exception now occurs. {noformat} 39:15 ERROR [ akka.actor.OneForOneStrategy] - exception during creation akka.actor.ActorInitializationException: exception during creation at akka.actor.ActorInitializationException$.apply(Actor.scala:166) ~[com.typesafe.akka.actor_2.3.11.jar:na] at akka.actor.ActorCell.create(ActorCell.scala:596) ~[com.typesafe.akka.actor_2.3.11.jar:na] at akka.actor.ActorCell.invokeAll$1(ActorCell.scala:456) ~[com.typesafe.akka.actor_2.3.11.jar:na] at akka.actor.ActorCell.systemInvoke(ActorCell.scala:478) ~[com.typesafe.akka.actor_2.3.11.jar:na] at akka.dispatch.Mailbox.processAllSystemMessages(Mailbox.scala:263) ~[com.typesafe.akka.actor_2.3.11.jar:na] at akka.dispatch.Mailbox.run(Mailbox.scala:219) ~[com.typesafe.akka.actor_2.3.11.jar:na] at akka.dispatch.ForkJoinExecutorConfigurator$AkkaForkJoinTask.exec(AbstractDispatcher.scala:397) [com.typesafe.akka.actor_2.3.11.jar:na] at scala.concurrent.forkjoin.ForkJoinTask.doExec(ForkJoinTask.java:260) [org.scala-lang.scala-library_2.11.6.v20150224-172222-092690e7bf.jar:na] at scala.concurrent.forkjoin.ForkJoinPool$WorkQueue.runTask(ForkJoinPool.java:1339) [org.scala-lang.scala-library_2.11.6.v20150224-172222-092690e7bf.jar:na] at scala.concurrent.forkjoin.ForkJoinPool.runWorker(ForkJoinPool.java:1979) [org.scala-lang.scala-library_2.11.6.v20150224-172222-092690e7bf.jar:na] at scala.concurrent.forkjoin.ForkJoinWorkerThread.run(ForkJoinWorkerThread.java:107) [org.scala-lang.scala-library_2.11.6.v20150224-172222-092690e7bf.jar:na] +*Caused by: java.util.ConcurrentModificationException: null at java.util.LinkedHashMap$LinkedHashIterator.nextNode(LinkedHashMap.java:711) ~[na:1.8.0_31] at java.util.LinkedHashMap$LinkedKeyIterator.next(LinkedHashMap.java:734) ~[na:1.8.0_31] at org.springframework.beans.factory.support.DefaultListableBeanFactory.doGetBeanNamesForType(DefaultListableBeanFactory.java:471) ~[org.apache.servicemix.bundles.spring-beans_4.1.6.RELEASE_1.jar:na]*+ at org.springframework.beans.factory.support.DefaultListableBeanFactory.getBeanNamesForType(DefaultListableBeanFactory.java:412) ~[org.apache.servicemix.bundles.spring-beans_4.1.6.RELEASE_1.jar:na] at org.springframework.beans.factory.BeanFactoryUtils.beanNamesForTypeIncludingAncestors(BeanFactoryUtils.java:186) ~[org.apache.servicemix.bundles.spring-beans_4.1.6.RELEASE_1.jar:na] at org.springframework.beans.factory.support.DefaultListableBeanFactory.findAutowireCandidates(DefaultListableBeanFactory.java:1105) ~[org.apache.servicemix.bundles.spring-beans_4.1.6.RELEASE_1.jar:na] at org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency(DefaultListableBeanFactory.java:1044) ~[org.apache.servicemix.bundles.spring-beans_4.1.6.RELEASE_1.jar:na] at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:942) ~[org.apache.servicemix.bundles.spring-beans_4.1.6.RELEASE_1.jar:na] at org.springframework.beans.factory.support.ConstructorResolver.resolveAutowiredArgument(ConstructorResolver.java:813) ~[org.apache.servicemix.bundles.spring-beans_4.1.6.RELEASE_1.jar:na] at org.springframework.beans.factory.support.ConstructorResolver.createArgumentArray(ConstructorResolver.java:741) ~[org.apache.servicemix.bundles.spring-beans_4.1.6.RELEASE_1.jar:na] at org.springframework.beans.factory.support.ConstructorResolver.autowireConstructor(ConstructorResolver.java:185) ~[org.apache.servicemix.bundles.spring-beans_4.1.6.RELEASE_1.jar:na] at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.autowireConstructor(AbstractAutowireCapableBeanFactory.java:1139) ~[org.apache.servicemix.bundles.spring-beans_4.1.6.RELEASE_1.jar:na] at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBeanInstance(AbstractAutowireCapableBeanFactory.java:1042) ~[org.apache.servicemix.bundles.spring-beans_4.1.6.RELEASE_1.jar:na] at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:504) ~[org.apache.servicemix.bundles.spring-beans_4.1.6.RELEASE_1.jar:na] at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:476) ~[org.apache.servicemix.bundles.spring-beans_4.1.6.RELEASE_1.jar:na] at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:342) ~[org.apache.servicemix.bundles.spring-beans_4.1.6.RELEASE_1.jar:na] at com.ccadllc.firebird.core.actors.SpringInjector.apply(Injector.scala:102) ~[com.ccadllc.firebird.core.actors_6.0.0.20150820212456.jar:na] at com.ccadllc.firebird.core.actors.Injected$$anonfun$apply$2.apply(Injector.scala:45) ~[com.ccadllc.firebird.core.actors_6.0.0.20150820212456.jar:na] at com.ccadllc.firebird.core.actors.Injected$$anonfun$apply$2.apply(Injector.scala:45) ~[com.ccadllc.firebird.core.actors_6.0.0.20150820212456.jar:na] at akka.actor.TypedCreatorFunctionConsumer.produce(Props.scala:343) ~[com.typesafe.akka.actor_2.3.11.jar:na] at akka.actor.Props.newActor(Props.scala:252) ~[com.typesafe.akka.actor_2.3.11.jar:na] at akka.actor.ActorCell.newActor(ActorCell.scala:552) ~[com.typesafe.akka.actor_2.3.11.jar:na] at akka.actor.ActorCell.create(ActorCell.scala:578) ~[com.typesafe.akka.actor_2.3.11.jar:na] ... 9 common frames omitted {noformat} There is a similar issue here: [SPR-12688|https://jira.spring.io/browse/SPR-12688] The ConcurrentModificationException issue didn't occur with 3.1 because a copy of the underlying list was Iterated over, not the original list. It looks like this was changed for performance reasons, but now it is causing our application to fail sporadically. I looked at code for the 4.2.1 release and the lists are still not accessed in a threadsafe manner. If there are no plans to fix this code to ensure that the lists are accessed in a synchronized fashion (using a CopyOnWriteArrayList, or by giving the option for the lists to be copied before attempting to Iterate over them, or perhaps synchronizing on the lists around the iteration) is there any way for us to tell the context to use our own custom bean factory that does this? We are willing to sacrifice some performance degradation, in order to allow the application to still function similar to the way it was working under the old 3.1 release. Currently we are synchronizing around the createBean, and for some cases it seems to fix the problem. However, this is a very large application and we feel the best way to ensure that it is fixed everywhere is to ensure that the beanFactory itself can handle access by multiple threads.

    Spring JIRA | 1 year ago | Richard Costine
    java.util.ConcurrentModificationException: null
  3. Speed up your debug routine!

    Automated exception search integrated into your IDE

  4. 0

    Sometimes the look and feel plugin will fail to fully initialise and properly startup, causing BBS to stop serving up CSS. h2. Workaround: Disable then reenable the look and feel plugin, from the manage addons section of UPM. h2. Details: The problem happens when the {{LessUriResolver}} fails to register itself with the plugin system correctly and logs the error below. When this happens any further requests to load the super batch on that node fail because it cannot resolve the {{dynamic://}} URI in the Look and feel plugin resources. {noformat} 2015-09-29 01:08:07,093 INFO [ThreadPoolAsyncTaskExecutor::Thread 20] o.e.g.b.e.i.s.ExtenderConfiguration Application context successfully refreshed (NonValidatingOsgiBundleXmlApplicationContext(bundle=com.atlassian.plugins.less-transformer-plugin, config=osgibundle:/META-INF/spring/*.xml)) 2015-09-29 01:08:07,121 ERROR [spring-startup] c.a.p.o.f.UnrecognizedModuleDescriptorServiceTrackerCustomizer Unable to transform com.atlassian.stash.plugin.stash-look-and-feel-plugin:webstaticUriResolver into actual plugin module using factory com.atlassian.plugin.osgi.external.SingleModuleDescriptorFactory@770380de java.util.ConcurrentModificationException: null at java.util.LinkedHashMap$LinkedHashIterator.nextNode(LinkedHashMap.java:711) ~[na:1.8.0_60] at java.util.LinkedHashMap$LinkedKeyIterator.next(LinkedHashMap.java:734) ~[na:1.8.0_60] at org.springframework.beans.factory.support.DefaultListableBeanFactory.doGetBeanNamesForType(DefaultListableBeanFactory.java:471) ~[spring-beans-4.1.7.RELEASE.jar:na] at org.springframework.beans.factory.support.DefaultListableBeanFactory.getBeanNamesForType(DefaultListableBeanFactory.java:412) ~[spring-beans-4.1.7.RELEASE.jar:na] at org.springframework.beans.factory.BeanFactoryUtils.beanNamesForTypeIncludingAncestors(BeanFactoryUtils.java:186) ~[spring-beans-4.1.7.RELEASE.jar:na] at org.springframework.beans.factory.support.DefaultListableBeanFactory.findAutowireCandidates(DefaultListableBeanFactory.java:1105) ~[spring-beans-4.1.7.RELEASE.jar:na] at org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency(DefaultListableBeanFactory.java:1044) ~[spring-beans-4.1.7.RELEASE.jar:na] at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:942) ~[spring-beans-4.1.7.RELEASE.jar:na] at org.springframework.beans.factory.support.ConstructorResolver.resolveAutowiredArgument(ConstructorResolver.java:813) ~[spring-beans-4.1.7.RELEASE.jar:na] at org.springframework.beans.factory.support.ConstructorResolver.createArgumentArray(ConstructorResolver.java:741) ~[spring-beans-4.1.7.RELEASE.jar:na] at org.springframework.beans.factory.support.ConstructorResolver.autowireConstructor(ConstructorResolver.java:185) ~[spring-beans-4.1.7.RELEASE.jar:na] at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.autowireConstructor(AbstractAutowireCapableBeanFactory.java:1139) ~[spring-beans-4.1.7.RELEASE.jar:na] at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBeanInstance(AbstractAutowireCapableBeanFactory.java:1042) ~[spring-beans-4.1.7.RELEASE.jar:na] at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:504) ~[spring-beans-4.1.7.RELEASE.jar:na] at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:476) ~[spring-beans-4.1.7.RELEASE.jar:na] at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:342) ~[spring-beans-4.1.7.RELEASE.jar:na] at com.atlassian.plugin.osgi.bridge.external.SpringHostContainer.create(SpringHostContainer.java:24) ~[na:na] at com.atlassian.plugin.osgi.external.SingleModuleDescriptorFactory.getModuleDescriptor(SingleModuleDescriptorFactory.java:43) ~[atlassian-plugins-osgi-4.0.4.jar:na] at com.atlassian.plugin.osgi.factory.UnrecognizedModuleDescriptorServiceTrackerCustomizer.canFactoryResolveUnrecognizedDescriptor(UnrecognizedModuleDescriptorServiceTrackerCustomizer.java:84) [atlassian-plugins-osgi-4.0.4.jar:na] at com.atlassian.plugin.osgi.factory.UnrecognizedModuleDescriptorServiceTrackerCustomizer.addingService(UnrecognizedModuleDescriptorServiceTrackerCustomizer.java:54) [atlassian-plugins-osgi-4.0.4.jar:na] at org.osgi.util.tracker.ServiceTracker$Tracked.customizerAdding(ServiceTracker.java:932) [org.apache.felix.framework-4.2.1.jar:na] at org.osgi.util.tracker.ServiceTracker$Tracked.customizerAdding(ServiceTracker.java:864) [org.apache.felix.framework-4.2.1.jar:na] at org.osgi.util.tracker.AbstractTracked.trackAdding(AbstractTracked.java:256) [org.apache.felix.framework-4.2.1.jar:na] at org.osgi.util.tracker.AbstractTracked.trackInitial(AbstractTracked.java:183) [org.apache.felix.framework-4.2.1.jar:na] at org.osgi.util.tracker.ServiceTracker.open(ServiceTracker.java:317) [org.apache.felix.framework-4.2.1.jar:na] at org.osgi.util.tracker.ServiceTracker.open(ServiceTracker.java:261) [org.apache.felix.framework-4.2.1.jar:na] at com.atlassian.plugin.osgi.factory.OsgiPluginInstalledHelper.onEnable(OsgiPluginInstalledHelper.java:93) [atlassian-plugins-osgi-4.0.4.jar:na] at com.atlassian.plugin.osgi.factory.OsgiPlugin.enableInternal(OsgiPlugin.java:428) [atlassian-plugins-osgi-4.0.4.jar:na] at com.atlassian.plugin.impl.AbstractPlugin.enable(AbstractPlugin.java:336) [atlassian-plugins-core-4.0.4.jar:na] at com.atlassian.plugin.manager.PluginEnabler.actualEnable(PluginEnabler.java:150) [atlassian-plugins-core-4.0.4.jar:na] at com.atlassian.plugin.manager.PluginEnabler.enable(PluginEnabler.java:118) [atlassian-plugins-core-4.0.4.jar:na] at com.atlassian.plugin.manager.DefaultPluginManager.enableDependentPlugins(DefaultPluginManager.java:1249) [atlassian-plugins-core-4.0.4.jar:na] at com.atlassian.plugin.manager.DefaultPluginManager.addPlugins(DefaultPluginManager.java:1221) [atlassian-plugins-core-4.0.4.jar:na] at com.atlassian.stash.internal.plugin.StashPluginManager.addPlugins(StashPluginManager.java:71) [bitbucket-platform-4.1.0-SNAPSHOT.jar:na] at com.atlassian.plugin.manager.DefaultPluginManager.earlyStartup(DefaultPluginManager.java:513) [atlassian-plugins-core-4.0.4.jar:na] at com.atlassian.stash.internal.plugin.StashPluginManager.lambda$earlyStartup$0(StashPluginManager.java:51) [bitbucket-platform-4.1.0-SNAPSHOT.jar:na] at com.atlassian.stash.internal.plugin.PluginUpgradeHelper.withUpgrade(PluginUpgradeHelper.java:82) ~[bitbucket-platform-4.1.0-SNAPSHOT.jar:na] at com.atlassian.stash.internal.plugin.StashPluginManager.earlyStartup(StashPluginManager.java:51) [bitbucket-platform-4.1.0-SNAPSHOT.jar:na] at com.atlassian.plugin.manager.DefaultPluginManager.init(DefaultPluginManager.java:426) [atlassian-plugins-core-4.0.4.jar:na] at com.atlassian.stash.internal.plugin.SpringPluginSystemLifecycle.start(SpringPluginSystemLifecycle.java:34) ~[bitbucket-platform-4.1.0-SNAPSHOT.jar:na] at org.springframework.context.support.DefaultLifecycleProcessor.doStart(DefaultLifecycleProcessor.java:173) ~[spring-context-4.1.7.RELEASE.jar:na] at org.springframework.context.support.DefaultLifecycleProcessor.access$200(DefaultLifecycleProcessor.java:51) ~[spring-context-4.1.7.RELEASE.jar:na] at org.springframework.context.support.DefaultLifecycleProcessor$LifecycleGroup.start(DefaultLifecycleProcessor.java:346) ~[spring-context-4.1.7.RELEASE.jar:na] at org.springframework.context.support.DefaultLifecycleProcessor.startBeans(DefaultLifecycleProcessor.java:149) ~[spring-context-4.1.7.RELEASE.jar:na] at org.springframework.context.support.DefaultLifecycleProcessor.onRefresh(DefaultLifecycleProcessor.java:112) ~[spring-context-4.1.7.RELEASE.jar:na] at org.springframework.context.support.AbstractApplicationContext.finishRefresh(AbstractApplicationContext.java:770) ~[spring-context-4.1.7.RELEASE.jar:na] at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:483) ~[spring-context-4.1.7.RELEASE.jar:na] at org.springframework.web.servlet.FrameworkServlet.configureAndRefreshWebApplicationContext(FrameworkServlet.java:664) ~[spring-webmvc-4.1.7.RELEASE.jar:na] at org.springframework.web.servlet.FrameworkServlet.createWebApplicationContext(FrameworkServlet.java:630) ~[spring-webmvc-4.1.7.RELEASE.jar:na] at org.springframework.web.servlet.FrameworkServlet.createWebApplicationContext(FrameworkServlet.java:678) ~[spring-webmvc-4.1.7.RELEASE.jar:na] at org.springframework.web.servlet.FrameworkServlet.initWebApplicationContext(FrameworkServlet.java:549) ~[spring-webmvc-4.1.7.RELEASE.jar:na] at com.atlassian.johnson.spring.web.servlet.JohnsonDispatcherServlet.initWebApplicationContext(JohnsonDispatcherServlet.java:125) ~[atlassian-johnson-spring-3.1.0.jar:na] at org.springframework.web.servlet.FrameworkServlet.initServletBean(FrameworkServlet.java:490) ~[spring-webmvc-4.1.7.RELEASE.jar:na] at org.springframework.web.servlet.HttpServletBean.init(HttpServletBean.java:136) ~[spring-webmvc-4.1.7.RELEASE.jar:na] at javax.servlet.GenericServlet.init(GenericServlet.java:158) ~[servlet-api.jar:3.1.FR] at com.atlassian.johnson.spring.lifecycle.LifecycleDispatcherServlet$1.run(LifecycleDispatcherServlet.java:90) ~[atlassian-johnson-spring-3.1.0.jar:na] at java.lang.Thread.run(Thread.java:745) ~[na:1.8.0_60] {noformat}

    Atlassian JIRA | 12 months ago | Scott Goodhew
    java.util.ConcurrentModificationException: null
  5. 0

    Sometimes the look and feel plugin will fail to fully initialise and properly startup, causing BBS to stop serving up CSS. h2. Workaround: Disable then reenable the look and feel plugin, from the manage addons section of UPM. h2. Details: The problem happens when the {{LessUriResolver}} fails to register itself with the plugin system correctly and logs the error below. When this happens any further requests to load the super batch on that node fail because it cannot resolve the {{dynamic://}} URI in the Look and feel plugin resources. {noformat} 2015-09-29 01:08:07,093 INFO [ThreadPoolAsyncTaskExecutor::Thread 20] o.e.g.b.e.i.s.ExtenderConfiguration Application context successfully refreshed (NonValidatingOsgiBundleXmlApplicationContext(bundle=com.atlassian.plugins.less-transformer-plugin, config=osgibundle:/META-INF/spring/*.xml)) 2015-09-29 01:08:07,121 ERROR [spring-startup] c.a.p.o.f.UnrecognizedModuleDescriptorServiceTrackerCustomizer Unable to transform com.atlassian.stash.plugin.stash-look-and-feel-plugin:webstaticUriResolver into actual plugin module using factory com.atlassian.plugin.osgi.external.SingleModuleDescriptorFactory@770380de java.util.ConcurrentModificationException: null at java.util.LinkedHashMap$LinkedHashIterator.nextNode(LinkedHashMap.java:711) ~[na:1.8.0_60] at java.util.LinkedHashMap$LinkedKeyIterator.next(LinkedHashMap.java:734) ~[na:1.8.0_60] at org.springframework.beans.factory.support.DefaultListableBeanFactory.doGetBeanNamesForType(DefaultListableBeanFactory.java:471) ~[spring-beans-4.1.7.RELEASE.jar:na] at org.springframework.beans.factory.support.DefaultListableBeanFactory.getBeanNamesForType(DefaultListableBeanFactory.java:412) ~[spring-beans-4.1.7.RELEASE.jar:na] at org.springframework.beans.factory.BeanFactoryUtils.beanNamesForTypeIncludingAncestors(BeanFactoryUtils.java:186) ~[spring-beans-4.1.7.RELEASE.jar:na] at org.springframework.beans.factory.support.DefaultListableBeanFactory.findAutowireCandidates(DefaultListableBeanFactory.java:1105) ~[spring-beans-4.1.7.RELEASE.jar:na] at org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency(DefaultListableBeanFactory.java:1044) ~[spring-beans-4.1.7.RELEASE.jar:na] at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:942) ~[spring-beans-4.1.7.RELEASE.jar:na] at org.springframework.beans.factory.support.ConstructorResolver.resolveAutowiredArgument(ConstructorResolver.java:813) ~[spring-beans-4.1.7.RELEASE.jar:na] at org.springframework.beans.factory.support.ConstructorResolver.createArgumentArray(ConstructorResolver.java:741) ~[spring-beans-4.1.7.RELEASE.jar:na] at org.springframework.beans.factory.support.ConstructorResolver.autowireConstructor(ConstructorResolver.java:185) ~[spring-beans-4.1.7.RELEASE.jar:na] at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.autowireConstructor(AbstractAutowireCapableBeanFactory.java:1139) ~[spring-beans-4.1.7.RELEASE.jar:na] at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBeanInstance(AbstractAutowireCapableBeanFactory.java:1042) ~[spring-beans-4.1.7.RELEASE.jar:na] at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:504) ~[spring-beans-4.1.7.RELEASE.jar:na] at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:476) ~[spring-beans-4.1.7.RELEASE.jar:na] at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:342) ~[spring-beans-4.1.7.RELEASE.jar:na] at com.atlassian.plugin.osgi.bridge.external.SpringHostContainer.create(SpringHostContainer.java:24) ~[na:na] at com.atlassian.plugin.osgi.external.SingleModuleDescriptorFactory.getModuleDescriptor(SingleModuleDescriptorFactory.java:43) ~[atlassian-plugins-osgi-4.0.4.jar:na] at com.atlassian.plugin.osgi.factory.UnrecognizedModuleDescriptorServiceTrackerCustomizer.canFactoryResolveUnrecognizedDescriptor(UnrecognizedModuleDescriptorServiceTrackerCustomizer.java:84) [atlassian-plugins-osgi-4.0.4.jar:na] at com.atlassian.plugin.osgi.factory.UnrecognizedModuleDescriptorServiceTrackerCustomizer.addingService(UnrecognizedModuleDescriptorServiceTrackerCustomizer.java:54) [atlassian-plugins-osgi-4.0.4.jar:na] at org.osgi.util.tracker.ServiceTracker$Tracked.customizerAdding(ServiceTracker.java:932) [org.apache.felix.framework-4.2.1.jar:na] at org.osgi.util.tracker.ServiceTracker$Tracked.customizerAdding(ServiceTracker.java:864) [org.apache.felix.framework-4.2.1.jar:na] at org.osgi.util.tracker.AbstractTracked.trackAdding(AbstractTracked.java:256) [org.apache.felix.framework-4.2.1.jar:na] at org.osgi.util.tracker.AbstractTracked.trackInitial(AbstractTracked.java:183) [org.apache.felix.framework-4.2.1.jar:na] at org.osgi.util.tracker.ServiceTracker.open(ServiceTracker.java:317) [org.apache.felix.framework-4.2.1.jar:na] at org.osgi.util.tracker.ServiceTracker.open(ServiceTracker.java:261) [org.apache.felix.framework-4.2.1.jar:na] at com.atlassian.plugin.osgi.factory.OsgiPluginInstalledHelper.onEnable(OsgiPluginInstalledHelper.java:93) [atlassian-plugins-osgi-4.0.4.jar:na] at com.atlassian.plugin.osgi.factory.OsgiPlugin.enableInternal(OsgiPlugin.java:428) [atlassian-plugins-osgi-4.0.4.jar:na] at com.atlassian.plugin.impl.AbstractPlugin.enable(AbstractPlugin.java:336) [atlassian-plugins-core-4.0.4.jar:na] at com.atlassian.plugin.manager.PluginEnabler.actualEnable(PluginEnabler.java:150) [atlassian-plugins-core-4.0.4.jar:na] at com.atlassian.plugin.manager.PluginEnabler.enable(PluginEnabler.java:118) [atlassian-plugins-core-4.0.4.jar:na] at com.atlassian.plugin.manager.DefaultPluginManager.enableDependentPlugins(DefaultPluginManager.java:1249) [atlassian-plugins-core-4.0.4.jar:na] at com.atlassian.plugin.manager.DefaultPluginManager.addPlugins(DefaultPluginManager.java:1221) [atlassian-plugins-core-4.0.4.jar:na] at com.atlassian.stash.internal.plugin.StashPluginManager.addPlugins(StashPluginManager.java:71) [bitbucket-platform-4.1.0-SNAPSHOT.jar:na] at com.atlassian.plugin.manager.DefaultPluginManager.earlyStartup(DefaultPluginManager.java:513) [atlassian-plugins-core-4.0.4.jar:na] at com.atlassian.stash.internal.plugin.StashPluginManager.lambda$earlyStartup$0(StashPluginManager.java:51) [bitbucket-platform-4.1.0-SNAPSHOT.jar:na] at com.atlassian.stash.internal.plugin.PluginUpgradeHelper.withUpgrade(PluginUpgradeHelper.java:82) ~[bitbucket-platform-4.1.0-SNAPSHOT.jar:na] at com.atlassian.stash.internal.plugin.StashPluginManager.earlyStartup(StashPluginManager.java:51) [bitbucket-platform-4.1.0-SNAPSHOT.jar:na] at com.atlassian.plugin.manager.DefaultPluginManager.init(DefaultPluginManager.java:426) [atlassian-plugins-core-4.0.4.jar:na] at com.atlassian.stash.internal.plugin.SpringPluginSystemLifecycle.start(SpringPluginSystemLifecycle.java:34) ~[bitbucket-platform-4.1.0-SNAPSHOT.jar:na] at org.springframework.context.support.DefaultLifecycleProcessor.doStart(DefaultLifecycleProcessor.java:173) ~[spring-context-4.1.7.RELEASE.jar:na] at org.springframework.context.support.DefaultLifecycleProcessor.access$200(DefaultLifecycleProcessor.java:51) ~[spring-context-4.1.7.RELEASE.jar:na] at org.springframework.context.support.DefaultLifecycleProcessor$LifecycleGroup.start(DefaultLifecycleProcessor.java:346) ~[spring-context-4.1.7.RELEASE.jar:na] at org.springframework.context.support.DefaultLifecycleProcessor.startBeans(DefaultLifecycleProcessor.java:149) ~[spring-context-4.1.7.RELEASE.jar:na] at org.springframework.context.support.DefaultLifecycleProcessor.onRefresh(DefaultLifecycleProcessor.java:112) ~[spring-context-4.1.7.RELEASE.jar:na] at org.springframework.context.support.AbstractApplicationContext.finishRefresh(AbstractApplicationContext.java:770) ~[spring-context-4.1.7.RELEASE.jar:na] at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:483) ~[spring-context-4.1.7.RELEASE.jar:na] at org.springframework.web.servlet.FrameworkServlet.configureAndRefreshWebApplicationContext(FrameworkServlet.java:664) ~[spring-webmvc-4.1.7.RELEASE.jar:na] at org.springframework.web.servlet.FrameworkServlet.createWebApplicationContext(FrameworkServlet.java:630) ~[spring-webmvc-4.1.7.RELEASE.jar:na] at org.springframework.web.servlet.FrameworkServlet.createWebApplicationContext(FrameworkServlet.java:678) ~[spring-webmvc-4.1.7.RELEASE.jar:na] at org.springframework.web.servlet.FrameworkServlet.initWebApplicationContext(FrameworkServlet.java:549) ~[spring-webmvc-4.1.7.RELEASE.jar:na] at com.atlassian.johnson.spring.web.servlet.JohnsonDispatcherServlet.initWebApplicationContext(JohnsonDispatcherServlet.java:125) ~[atlassian-johnson-spring-3.1.0.jar:na] at org.springframework.web.servlet.FrameworkServlet.initServletBean(FrameworkServlet.java:490) ~[spring-webmvc-4.1.7.RELEASE.jar:na] at org.springframework.web.servlet.HttpServletBean.init(HttpServletBean.java:136) ~[spring-webmvc-4.1.7.RELEASE.jar:na] at javax.servlet.GenericServlet.init(GenericServlet.java:158) ~[servlet-api.jar:3.1.FR] at com.atlassian.johnson.spring.lifecycle.LifecycleDispatcherServlet$1.run(LifecycleDispatcherServlet.java:90) ~[atlassian-johnson-spring-3.1.0.jar:na] at java.lang.Thread.run(Thread.java:745) ~[na:1.8.0_60] {noformat}

    Atlassian JIRA | 12 months ago | Scott Goodhew
    java.util.ConcurrentModificationException: null

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    Root Cause Analysis

    1. java.util.ConcurrentModificationException

      null

      at java.util.LinkedHashMap$LinkedHashIterator.nextNode()
    2. Java RT
      LinkedHashMap$LinkedKeyIterator.next
      1. java.util.LinkedHashMap$LinkedHashIterator.nextNode(LinkedHashMap.java:711)[na:1.8.0_31]
      2. java.util.LinkedHashMap$LinkedKeyIterator.next(LinkedHashMap.java:734)[na:1.8.0_31]
      2 frames