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<td class="page-title-pattern-first-line " style="padding: 0; border-collapse: collapse; font-family: Arial, sans-serif; font-size: 14px; padding-top: 10px"> <a href="https://hibernate.atlassian.net/browse/HHH" style="color: #3b73af; text-decoration: none">Hibernate ORM</a> / <a href="https://hibernate.atlassian.net/browse/HHH-11022" style="color: #3b73af; text-decoration: none"><img src="cid:jira-generated-image-avatar-90521852-1a57-4e9f-a72e-206785ed9a88" height="16" width="16" border="0" align="absmiddle" alt="Bug" style="vertical-align: text-bottom"></a> <a href="https://hibernate.atlassian.net/browse/HHH-11022" style="color: #3b73af; text-decoration: none">HHH-11022</a> </td>
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<td style="vertical-align: top;; padding: 0; border-collapse: collapse; padding-right: 5px; font-size: 20px; line-height: 30px; mso-line-height-rule: exactly" class="page-title-pattern-header-container"> <span class="page-title-pattern-header" style="font-family: Arial, sans-serif; padding: 0; font-size: 20px; line-height: 30px; mso-text-raise: 2px; mso-line-height-rule: exactly; vertical-align: middle"> <a href="https://hibernate.atlassian.net/browse/HHH-11022" style="color: #3b73af; text-decoration: none">ConcurrentModificationException for unsynchronized ResourceRegistryStandardImpl.xref variable</a> </span> </td>
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<th style="color: #707070; font: normal 14px/20px Arial, sans-serif; text-align: left; vertical-align: top; padding: 2px 0">Change By:</th>
<td style="padding: 0; border-collapse: collapse; font: normal 14px/20px Arial, sans-serif; padding: 2px 0 2px 5px; vertical-align: top"> <a class="user-hover" rel="cvolzke" id="email_cvolzke" href="https://hibernate.atlassian.net/secure/ViewProfile.jspa?name=cvolzke" style="color:#6c797f;; color: #3b73af; text-decoration: none">Clinton Volzke</a> </td>
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<td class="text-paragraph-pattern-container mobile-resize-text " style="padding: 0; border-collapse: collapse; padding: 0 0 10px"> <span class="diffcontext">I could only reproduce the error while running across 2000+ Confluence cloud instances</span> <span class="diffaddedchars" style="background-color:#ddfade;"> for a few weeks</span> <span class="diffcontext">, but the issue should be fairly obvious from the track trace:<br><br>{code}<br>java.util.ConcurrentModificationException<br> at java.util.HashMap$HashIterator.nextNode(HashMap.java:1429)<br> at java.util.HashMap$EntryIterator.next(HashMap.java:1463)<br> at java.util.HashMap$EntryIterator.next(HashMap.java:1461)<br> at org.hibernate.resource.jdbc.internal.ResourceRegistryStandardImpl.releaseResources(ResourceRegistryStandardImpl.java:288)<br> at org.hibernate.resource.jdbc.internal.AbstractLogicalConnectionImplementor.afterTransaction(AbstractLogicalConnectionImplementor.java:55)<br> at org.hibernate.resource.jdbc.internal.LogicalConnectionManagedImpl.afterTransaction(LogicalConnectionManagedImpl.java:149)<br> at org.hibernate.resource.jdbc.internal.LogicalConnectionManagedImpl.afterCompletion(LogicalConnectionManagedImpl.java:260)<br> at org.hibernate.resource.jdbc.internal.AbstractLogicalConnectionImplementor.commit(AbstractLogicalConnectionImplementor.java:88)<br> at org.hibernate.resource.transaction.backend.jdbc.internal.JdbcResourceLocalTransactionCoordinatorImpl$TransactionDriverControlImpl.commit(JdbcResourceLocalTransactionCoordinatorImpl.java:221)<br> at org.hibernate.engine.transaction.internal.TransactionImpl.commit(TransactionImpl.java:68)<br> at com.atlassian.hibernate.adapter.adapters.TransactionV2Adapter.commit(TransactionV2Adapter.java:30)<br> at org.springframework.orm.hibernate.HibernateTransactionManager.doCommit(HibernateTransactionManager.java:510)<br> at com.atlassian.confluence.impl.hibernate.ConfluenceHibernateTransactionManager.doCommit(ConfluenceHibernateTransactionManager.java:67)<br> at org.springframework.transaction.support.AbstractPlatformTransactionManager.processCommit(AbstractPlatformTransactionManager.java:761)<br> at org.springframework.transaction.support.AbstractPlatformTransactionManager.commit(AbstractPlatformTransactionManager.java:730)<br> ... 2 filtered<br> at java.lang.reflect.Method.invoke(Method.java:498)<br> at org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:302)<br> at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:202)<br> at com.sun.proxy.$Proxy42.commit(Unknown Source)<br> at com.atlassian.xwork.interceptors.TransactionalInvocation.commitOrRollbackTransaction(TransactionalInvocation.java:107)<br> at com.atlassian.xwork.interceptors.TransactionalInvocation.invokeInTransaction(TransactionalInvocation.java:67)<br> at com.atlassian.xwork.interceptors.XWorkTransactionInterceptor.intercept(XWorkTransactionInterceptor.java:56)<br> at com.opensymphony.xwork.DefaultActionInvocation.invoke(DefaultActionInvocation.java:165)<br> at com.atlassian.confluence.xwork.SetupIncompleteInterceptor.intercept(SetupIncompleteInterceptor.java:43)<br> at com.opensymphony.xwork.DefaultActionInvocation.invoke(DefaultActionInvocation.java:165)<br> at com.atlassian.confluence.security.interceptors.SecurityHeadersInterceptor.intercept(SecurityHeadersInterceptor.java:56)<br> at com.opensymphony.xwork.DefaultActionInvocation.invoke(DefaultActionInvocation.java:165)<br> at com.opensymphony.xwork.interceptor.AroundInterceptor.intercept(AroundInterceptor.java:35)<br> at com.opensymphony.xwork.DefaultActionInvocation.invoke(DefaultActionInvocation.java:165)<br> at com.opensymphony.xwork.DefaultActionProxy.execute(DefaultActionProxy.java:115)<br> at com.atlassian.confluence.servlet.ConfluenceServletDispatcher.serviceAction(ConfluenceServletDispatcher.java:56)<br> at com.opensymphony.webwork.dispatcher.ServletDispatcher.service(ServletDispatcher.java:199)<br> at javax.servlet.http.HttpServlet.service(HttpServlet.java:731)<br> ... 5 filtered<br> at com.atlassian.confluence.web.filter.DebugFilter.doFilter(DebugFilter.java:46)<br> ... 9 filtered<br> at com.atlassian.confluence.extra.jira.filters.SingleJiraIssuesMapThreadLocalFilter.doFilter(SingleJiraIssuesMapThreadLocalFilter.java:40)<br> ... 15 filtered<br> at com.atlassian.confluence.efi.filters.OnboardingFilter.doFilter(OnboardingFilter.java:59)<br> ... 23 filtered<br> at com.atlassian.confluence.security.websudo.MessagesDecoratorFilter.doFilter(MessagesDecoratorFilter.java:54)<br> ... 5 filtered<br> at com.atlassian.confluence.util.profiling.ProfilingSiteMeshFilter.doFilter(ProfilingSiteMeshFilter.java:45)<br> ... 4 filtered<br> at com.atlassian.plugin.connect.plugin.auth.scope.ApiScopingFilter.doFilter(ApiScopingFilter.java:81)<br> ... 3 filtered<br> at com.atlassian.confluence.util.profiling.ConfluenceActivityFilter.doFilter(ConfluenceActivityFilter.java:39)<br> ... 10 filtered<br> at com.atlassian.confluence.cache.TransactionalCacheFactoryCleanupFilter.doFilter(TransactionalCacheFactoryCleanupFilter.java:23)<br> ... 7 filtered<br> at com.atlassian.confluence.util.LoggingContextFilter.doFilter(LoggingContextFilter.java:34)<br> ... 3 filtered<br> at com.atlassian.confluence.util.UserNameHeaderFilter.doFilter(UserNameHeaderFilter.java:25)<br> ... 3 filtered<br> at com.atlassian.confluence.web.filter.MauEventFilter.doFilter(MauEventFilter.java:32)<br> ... 3 filtered<br> at com.atlassian.confluence.util.AuthenticatedUserFilter.doFilter(AuthenticatedUserFilter.java:39)<br> ... 3 filtered<br> at com.atlassian.confluence.web.filter.ConfluenceTimeoutFilter.doFilter(ConfluenceTimeoutFilter.java:57)<br> ... 4 filtered<br> at com.atlassian.confluence.web.filter.ConfluenceSecurityFilter.doFilter(ConfluenceSecurityFilter.java:27)<br> ... 2 filtered<br> at com.atlassian.confluence.web.filter.ThreadLocalCacheFilter.doFilter(ThreadLocalCacheFilter.java:25)<br> ... 3 filtered<br> at com.atlassian.confluence.util.AbstractBootstrapHotSwappingFilter.doFilter(AbstractBootstrapHotSwappingFilter.java:31)<br> ... 29 filtered<br> at org.springframework.orm.hibernate.support.OpenSessionInViewFilter.doFilterInternal(OpenSessionInViewFilter.java:170)<br> at com.atlassian.spring.filter.FlushingSpringSessionInViewFilter.doFilterInternal(FlushingSpringSessionInViewFilter.java:29)<br> at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)<br> ... 2 filtered<br> at com.atlassian.confluence.util.ConfluenceErrorFilter.doFilter(ConfluenceErrorFilter.java:24)<br> ... 5 filtered<br> at com.atlassian.confluence.core.datetime.RequestTimeThreadLocalFilter.doFilter(RequestTimeThreadLocalFilter.java:37)<br> ... 8 filtered<br> at com.atlassian.plugin.connect.plugin.auth.oauth2.DefaultSalAuthenticationFilter.doFilter(DefaultSalAuthenticationFilter.java:69)<br> ... 3 filtered<br> at com.atlassian.plugin.connect.plugin.auth.user.ThreeLeggedAuthFilter.doFilter(ThreeLeggedAuthFilter.java:109)<br> ... 3 filtered<br> at org.springframework.orm.hibernate.support.OpenSessionInViewFilter.doFilterInternal(OpenSessionInViewFilter.java:170)<br> at com.atlassian.spring.filter.FlushingSpringSessionInViewFilter.doFilterInternal(FlushingSpringSessionInViewFilter.java:29)<br> at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)<br> ... 8 filtered<br> at com.atlassian.jwt.internal.servlet.JwtAuthFilter.doFilter(JwtAuthFilter.java:32)<br> ... 3 filtered<br> at com.atlassian.confluence.web.filter.HttpRequestStatsFilter.doFilter(HttpRequestStatsFilter.java:47)<br> ... 8 filtered<br> at com.atlassian.confluence.web.filter.ConfluenceTimingFilter.doFilter(ConfluenceTimingFilter.java:46)<br> ... 7 filtered<br> at com.atlassian.confluence.extra.webdav.servlet.filter.AbstractHttpFilter.doFilter(AbstractHttpFilter.java:43)<br> ... 6 filtered<br> at com.atlassian.confluence.internal.web.filter.spring.IgnoreWebAsyncManagerFilter.doFilter(IgnoreWebAsyncManagerFilter.java:59)<br> ... 2 filtered<br> at com.atlassian.confluence.web.filter.validateparam.RequestParamValidationFilter.doFilter(RequestParamValidationFilter.java:51)<br> ... 3 filtered<br> at com.atlassian.confluence.web.filter.TranslationModeFilter.doFilter(TranslationModeFilter.java:39)<br> ... 3 filtered<br> at com.atlassian.confluence.plugin.servlet.filter.ActionContextCleanUp.doFilter(ActionContextCleanUp.java:72)<br> ... 2 filtered<br> at com.atlassian.confluence.web.filter.LanguageExtractionFilter.doFilter(LanguageExtractionFilter.java:45)<br> ... 3 filtered<br> at com.atlassian.confluence.web.filter.ResponseOutputStreamFilter.doFilter(ResponseOutputStreamFilter.java:23)<br> ... 4 filtered<br> at com.atlassian.confluence.web.ConfluenceJohnsonFilter.doFilter(ConfluenceJohnsonFilter.java:33)<br> ... 6 filtered<br> at com.atlassian.confluence.impl.hibernate.cache.metrics.HibernateCacheMetricsLoggingFilter.doFilter(HibernateCacheMetricsLoggingFilter.java:61)<br> ... 3 filtered<br> at com.atlassian.confluence.web.filter.BandanaPrefetchFilter.doFilter(BandanaPrefetchFilter.java:49)<br> ... 3 filtered<br> at com.atlassian.confluence.impl.vcache.VCacheRequestContextFilter.lambda$doFilter$4(VCacheRequestContextFilter.java:52)<br> at com.atlassian.confluence.impl.vcache.VCacheRequestContextManager.doInRequestContext(VCacheRequestContextManager.java:82)<br> at com.atlassian.confluence.impl.vcache.VCacheRequestContextManager.doInRequestContext(VCacheRequestContextManager.java:72)<br> at com.atlassian.confluence.impl.vcache.VCacheRequestContextFilter.doFilter(VCacheRequestContextFilter.java:51)<br> ... 3 filtered<br> at com.atlassian.confluence.util.RequestAttributeFilter.doFilter(RequestAttributeFilter.java:58)<br> ... 2 filtered<br> at com.github.kristofa.brave.servlet.BraveServletFilter.doFilter(BraveServletFilter.java:59)<br> at com.atlassian.confluence.web.filter.ZipkinTracingFilter.doFilter(ZipkinTracingFilter.java:52)<br> ... 2 filtered<br> at com.atlassian.confluence.util.WorkContextFilter.doFilter(WorkContextFilter.java:44)<br> ... 2 filtered<br> at com.atlassian.confluence.impl.servlet.HoldingUntilStartedFilter.doFilter(HoldingUntilStartedFilter.java:88)<br> ... 6 filtered<br> at com.atlassian.confluence.servlet.FourOhFourErrorLoggingFilter.doFilter(FourOhFourErrorLoggingFilter.java:64)<br> ... 2 filtered<br> at com.atlassian.confluence.web.filter.DebugFilter.doFilter(DebugFilter.java:46)<br> ... 13 filtered<br> at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)<br> at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)<br> at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)<br> at java.lang.Thread.run(Thread.java:745)<br>{code}</span> </td>
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<td id="actions-pattern-container" valign="middle" style="padding: 0; border-collapse: collapse; padding: 10px 0 10px 24px; vertical-align: middle; padding-left: 0">
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<td class="actions-pattern-action-icon-container" style="padding: 0; border-collapse: collapse; font-family: Arial, sans-serif; font-size: 14px; line-height: 20px; mso-line-height-rule: exactly; mso-text-raise: 0; vertical-align: middle"> <a href="https://hibernate.atlassian.net/browse/HHH-11022#add-comment" target="_blank" title="Add Comment" style="color: #3b73af; text-decoration: none"> <img class="actions-pattern-action-icon-image" src="cid:jira-generated-image-static-comment-icon-6ea06bb9-87cd-4de1-84e9-696b762b72d5" alt="Add Comment" title="Add Comment" height="16" width="16" border="0" style="vertical-align: middle"> </a> </td>
<td class="actions-pattern-action-text-container" style="padding: 0; border-collapse: collapse; font-family: Arial, sans-serif; font-size: 14px; line-height: 20px; mso-line-height-rule: exactly; mso-text-raise: 4px; padding-left: 5px"> <a href="https://hibernate.atlassian.net/browse/HHH-11022#add-comment" target="_blank" title="Add Comment" style="color: #3b73af; text-decoration: none">Add Comment</a> </td>
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<td id="footer-pattern-text" class="mobile-resize-text" width="100%" style="padding: 0; border-collapse: collapse; color: #999999; font-size: 12px; line-height: 18px; font-family: Arial, sans-serif; mso-line-height-rule: exactly; mso-text-raise: 2px"> This message was sent by Atlassian JIRA <span id="footer-build-information">(v1000.217.1#100008-<span title="fdd523c323c2c9db17acf28ef688f81d0a4b61ea" data-commit-id="fdd523c323c2c9db17acf28ef688f81d0a4b61ea}">sha1:fdd523c</span>)</span> </td>
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