[JENKINS-66993] Do not register AntClassLoader as parallel-capable#5865
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timja merged 1 commit intojenkinsci:masterfrom Nov 4, 2021
basil:JENKINS-66993
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[JENKINS-66993] Do not register AntClassLoader as parallel-capable#5865timja merged 1 commit intojenkinsci:masterfrom basil:JENKINS-66993
AntClassLoader as parallel-capable#5865timja merged 1 commit intojenkinsci:masterfrom
basil:JENKINS-66993
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basil
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timja
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Oct 28, 2021
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apache/ant@d37df73 FYI @bodewig; also not sure if apache/ant#112 (comment) is significant. |
jglick
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Oct 28, 2021
MarkEWaite
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This PR is now ready for merge. We will merge it after approximately 24 hours if there is no negative feedback. |
timja
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…enkinsci#5865) (cherry picked from commit 43d9a24)
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Steps to reproduce
See JENKINS-66993.
java -jar jenkins.war.java -jar jenkins.war.Expected results
The page loads without errors.
Actual results
The credentials portions of the page fail to load and the following is logged:
Stack trace
2021-10-27 20:49:27.850+0000 [id=47] WARNING o.e.j.s.h.ContextHandler$Context#log: Error while serving http://127.0.0.1:8080/descriptorByName/jenkins.plugins.slack.SlackNotifier/fillTokenCredentialIdItems java.lang.LinkageError: loader jenkins.util.AntClassLoader @3e734cf4 attempted duplicate abstract class definition for com.cloudbees.plugins.credentials.CredentialsNameProvider. (com.cloudbees.plugins.credentials.CredentialsNameProvider is in unnamed module of loader jenkins.util.AntClassLoader @3e734cf4, parent loader 'app') at java.base/java.lang.ClassLoader.defineClass1(Native Method) at java.base/java.lang.ClassLoader.defineClass(ClassLoader.java:1017) at jenkins.util.AntClassLoader.defineClassFromData(AntClassLoader.java:1188) at jenkins.util.AntClassLoader.getClassFromStream(AntClassLoader.java:1356) at jenkins.util.AntClassLoader.findClassInComponents(AntClassLoader.java:1408) at jenkins.util.AntClassLoader.findClass(AntClassLoader.java:1373) at jenkins.ClassLoaderReflectionToolkit._findClass(ClassLoaderReflectionToolkit.java:107) at hudson.ClassicPluginStrategy$DependencyClassLoader.findClass(ClassicPluginStrategy.java:646) at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:589) at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:522) at jenkins.util.AntClassLoader.findBaseClass(AntClassLoader.java:1437) at jenkins.util.AntClassLoader.loadClass(AntClassLoader.java:1124) at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:522) at java.base/java.lang.ClassLoader.defineClass1(Native Method) at java.base/java.lang.ClassLoader.defineClass(ClassLoader.java:1017) at jenkins.util.AntClassLoader.defineClassFromData(AntClassLoader.java:1188) at jenkins.util.AntClassLoader.getClassFromStream(AntClassLoader.java:1356) at jenkins.util.AntClassLoader.findClassInComponents(AntClassLoader.java:1408) at jenkins.util.AntClassLoader.findClass(AntClassLoader.java:1373) at jenkins.util.AntClassLoader.loadClass(AntClassLoader.java:1128) at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:522) at java.base/java.lang.Class.forName0(Native Method) at java.base/java.lang.Class.forName(Class.java:398) at java.base/sun.reflect.generics.factory.CoreReflectionFactory.makeNamedType(CoreReflectionFactory.java:114) at java.base/sun.reflect.generics.visitor.Reifier.visitClassTypeSignature(Reifier.java:125) at java.base/sun.reflect.generics.tree.ClassTypeSignature.accept(ClassTypeSignature.java:49) at java.base/sun.reflect.annotation.AnnotationParser.parseSig(AnnotationParser.java:440) at java.base/sun.reflect.annotation.AnnotationParser.parseClassValue(AnnotationParser.java:421) at java.base/sun.reflect.annotation.AnnotationParser.parseMemberValue(AnnotationParser.java:350) at java.base/sun.reflect.annotation.AnnotationParser.parseAnnotation2(AnnotationParser.java:287) at java.base/sun.reflect.annotation.AnnotationParser.parseAnnotations2(AnnotationParser.java:121) at java.base/sun.reflect.annotation.AnnotationParser.parseAnnotations(AnnotationParser.java:73) at java.base/java.lang.Class.createAnnotationData(Class.java:3757) at java.base/java.lang.Class.annotationData(Class.java:3746) at java.base/java.lang.Class.getAnnotation(Class.java:3651) at com.cloudbees.plugins.credentials.CredentialsResolver.getResolver(CredentialsResolver.java:124) at com.cloudbees.plugins.credentials.CredentialsProvider.listCredentials(CredentialsProvider.java:471) at com.cloudbees.plugins.credentials.CredentialsProvider.listCredentials(CredentialsProvider.java:603) at com.cloudbees.plugins.credentials.common.AbstractIdCredentialsListBoxModel.includeMatchingAs(AbstractIdCredentialsListBoxModel.java:476) at com.cloudbees.plugins.credentials.common.AbstractIdCredentialsListBoxModel.includeAs(AbstractIdCredentialsListBoxModel.java:397) at jenkins.plugins.slack.SlackNotifier$DescriptorImpl.findTokenCredentialIdItems(SlackNotifier.java:816) at jenkins.plugins.slack.SlackNotifier$DescriptorImpl.doFillTokenCredentialIdItems(SlackNotifier.java:802) at java.base/java.lang.invoke.MethodHandle.invokeWithArguments(MethodHandle.java:710) at org.kohsuke.stapler.Function$MethodFunction.invoke(Function.java:393) Caused: java.lang.reflect.InvocationTargetException at org.kohsuke.stapler.Function$MethodFunction.invoke(Function.java:397) at org.kohsuke.stapler.Function$InstanceFunction.invoke(Function.java:405) at org.kohsuke.stapler.Function.bindAndInvoke(Function.java:208) at org.kohsuke.stapler.Function.bindAndInvokeAndServeResponse(Function.java:141) at org.kohsuke.stapler.MetaClass$11.doDispatch(MetaClass.java:536) at org.kohsuke.stapler.NameBasedDispatcher.dispatch(NameBasedDispatcher.java:58) at org.kohsuke.stapler.Stapler.tryInvoke(Stapler.java:766) at org.kohsuke.stapler.Stapler.invoke(Stapler.java:898) at org.kohsuke.stapler.MetaClass$4.doDispatch(MetaClass.java:281) at org.kohsuke.stapler.NameBasedDispatcher.dispatch(NameBasedDispatcher.java:58) at org.kohsuke.stapler.Stapler.tryInvoke(Stapler.java:766) at org.kohsuke.stapler.Stapler.invoke(Stapler.java:898) at org.kohsuke.stapler.Stapler.invoke(Stapler.java:694) at org.kohsuke.stapler.Stapler.service(Stapler.java:240) at javax.servlet.http.HttpServlet.service(HttpServlet.java:790) at org.eclipse.jetty.servlet.ServletHolder.handle(ServletHolder.java:799) at org.eclipse.jetty.servlet.ServletHandler$ChainEnd.doFilter(ServletHandler.java:1626) at hudson.util.PluginServletFilter$1.doFilter(PluginServletFilter.java:156) at jenkins.security.ResourceDomainFilter.doFilter(ResourceDomainFilter.java:80) at hudson.util.PluginServletFilter$1.doFilter(PluginServletFilter.java:153) at jenkins.telemetry.impl.UserLanguages$AcceptLanguageFilter.doFilter(UserLanguages.java:128) at hudson.util.PluginServletFilter$1.doFilter(PluginServletFilter.java:153) at hudson.util.PluginServletFilter.doFilter(PluginServletFilter.java:159) at org.eclipse.jetty.servlet.FilterHolder.doFilter(FilterHolder.java:193) at org.eclipse.jetty.servlet.ServletHandler$Chain.doFilter(ServletHandler.java:1601) at hudson.security.csrf.CrumbFilter.doFilter(CrumbFilter.java:153) at org.eclipse.jetty.servlet.FilterHolder.doFilter(FilterHolder.java:193) at org.eclipse.jetty.servlet.ServletHandler$Chain.doFilter(ServletHandler.java:1601) at hudson.security.ChainedServletFilter$1.doFilter(ChainedServletFilter.java:92) at jenkins.security.AcegiSecurityExceptionFilter.doFilter(AcegiSecurityExceptionFilter.java:52) at hudson.security.ChainedServletFilter$1.doFilter(ChainedServletFilter.java:97) at hudson.security.UnwrapSecurityExceptionFilter.doFilter(UnwrapSecurityExceptionFilter.java:53) at hudson.security.ChainedServletFilter$1.doFilter(ChainedServletFilter.java:97) at org.springframework.security.web.access.ExceptionTranslationFilter.doFilter(ExceptionTranslationFilter.java:121) at org.springframework.security.web.access.ExceptionTranslationFilter.doFilter(ExceptionTranslationFilter.java:115) at hudson.security.ChainedServletFilter$1.doFilter(ChainedServletFilter.java:97) at org.springframework.security.web.authentication.AnonymousAuthenticationFilter.doFilter(AnonymousAuthenticationFilter.java:105) at hudson.security.ChainedServletFilter$1.doFilter(ChainedServletFilter.java:97) at org.springframework.security.web.authentication.rememberme.RememberMeAuthenticationFilter.doFilter(RememberMeAuthenticationFilter.java:133) at org.springframework.security.web.authentication.rememberme.RememberMeAuthenticationFilter.doFilter(RememberMeAuthenticationFilter.java:92) at hudson.security.ChainedServletFilter$1.doFilter(ChainedServletFilter.java:97) at org.springframework.security.web.authentication.AbstractAuthenticationProcessingFilter.doFilter(AbstractAuthenticationProcessingFilter.java:218) at org.springframework.security.web.authentication.AbstractAuthenticationProcessingFilter.doFilter(AbstractAuthenticationProcessingFilter.java:212) at hudson.security.ChainedServletFilter$1.doFilter(ChainedServletFilter.java:97) at jenkins.security.BasicHeaderProcessor.doFilter(BasicHeaderProcessor.java:97) at hudson.security.ChainedServletFilter$1.doFilter(ChainedServletFilter.java:97) at org.springframework.security.web.context.SecurityContextPersistenceFilter.doFilter(SecurityContextPersistenceFilter.java:110) at org.springframework.security.web.context.SecurityContextPersistenceFilter.doFilter(SecurityContextPersistenceFilter.java:80) at hudson.security.HttpSessionContextIntegrationFilter2.doFilter(HttpSessionContextIntegrationFilter2.java:62) at hudson.security.ChainedServletFilter$1.doFilter(ChainedServletFilter.java:97) at hudson.security.ChainedServletFilter.doFilter(ChainedServletFilter.java:109) at hudson.security.HudsonFilter.doFilter(HudsonFilter.java:171) at org.eclipse.jetty.servlet.FilterHolder.doFilter(FilterHolder.java:193) at org.eclipse.jetty.servlet.ServletHandler$Chain.doFilter(ServletHandler.java:1601) at org.kohsuke.stapler.compression.CompressionFilter.doFilter(CompressionFilter.java:51) at org.eclipse.jetty.servlet.FilterHolder.doFilter(FilterHolder.java:193) at org.eclipse.jetty.servlet.ServletHandler$Chain.doFilter(ServletHandler.java:1601) at hudson.util.CharacterEncodingFilter.doFilter(CharacterEncodingFilter.java:85) at org.eclipse.jetty.servlet.FilterHolder.doFilter(FilterHolder.java:193) at org.eclipse.jetty.servlet.ServletHandler$Chain.doFilter(ServletHandler.java:1601) at org.kohsuke.stapler.DiagnosticThreadNameFilter.doFilter(DiagnosticThreadNameFilter.java:30) at org.eclipse.jetty.servlet.FilterHolder.doFilter(FilterHolder.java:193) at org.eclipse.jetty.servlet.ServletHandler$Chain.doFilter(ServletHandler.java:1601) at jenkins.security.SuspiciousRequestFilter.doFilter(SuspiciousRequestFilter.java:39) at org.eclipse.jetty.servlet.FilterHolder.doFilter(FilterHolder.java:193) at org.eclipse.jetty.servlet.ServletHandler$Chain.doFilter(ServletHandler.java:1601) at org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:548) at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:143) at org.eclipse.jetty.security.SecurityHandler.handle(SecurityHandler.java:578) at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:127) at org.eclipse.jetty.server.handler.ScopedHandler.nextHandle(ScopedHandler.java:235) at org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:1624) at org.eclipse.jetty.server.handler.ScopedHandler.nextHandle(ScopedHandler.java:233) at org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1434) at org.eclipse.jetty.server.handler.ScopedHandler.nextScope(ScopedHandler.java:188) at org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:501) at org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:1594) at org.eclipse.jetty.server.handler.ScopedHandler.nextScope(ScopedHandler.java:186) at org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:1349) at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:141) at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:127) at org.eclipse.jetty.server.Server.handle(Server.java:516) at org.eclipse.jetty.server.HttpChannel.lambda$handle$1(HttpChannel.java:388) at org.eclipse.jetty.server.HttpChannel.dispatch(HttpChannel.java:633) at org.eclipse.jetty.server.HttpChannel.handle(HttpChannel.java:380) at org.eclipse.jetty.server.HttpConnection.onFillable(HttpConnection.java:277) at org.eclipse.jetty.io.AbstractConnection$ReadCallback.succeeded(AbstractConnection.java:311) at org.eclipse.jetty.io.FillInterest.fillable(FillInterest.java:105) at org.eclipse.jetty.io.ChannelEndPoint$1.run(ChannelEndPoint.java:104) at org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.runTask(EatWhatYouKill.java:338) at org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.doProduce(EatWhatYouKill.java:315) at org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.tryProduce(EatWhatYouKill.java:173) at org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.run(EatWhatYouKill.java:131) at org.eclipse.jetty.util.thread.ReservedThreadExecutor$ReservedThread.run(ReservedThreadExecutor.java:386) at org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:883) at org.eclipse.jetty.util.thread.QueuedThreadPool$Runner.run(QueuedThreadPool.java:1034) at java.base/java.lang.Thread.run(Thread.java:829) 2021-10-27 20:49:27.856+0000 [id=47] WARNING h.i.i.InstallUncaughtExceptionHandler#handleException: Caught unhandled exception with ID f8f6d014-1715-4333-a7cd-cbf76a0714f6 java.lang.LinkageError: loader jenkins.util.AntClassLoader @3e734cf4 attempted duplicate abstract class definition for com.cloudbees.plugins.credentials.CredentialsNameProvider. (com.cloudbees.plugins.credentials.CredentialsNameProvider is in unnamed module of loader jenkins.util.AntClassLoader @3e734cf4, parent loader 'app') at java.base/java.lang.ClassLoader.defineClass1(Native Method) at java.base/java.lang.ClassLoader.defineClass(ClassLoader.java:1017) at jenkins.util.AntClassLoader.defineClassFromData(AntClassLoader.java:1188) at jenkins.util.AntClassLoader.getClassFromStream(AntClassLoader.java:1356) at jenkins.util.AntClassLoader.findClassInComponents(AntClassLoader.java:1408) at jenkins.util.AntClassLoader.findClass(AntClassLoader.java:1373) at jenkins.ClassLoaderReflectionToolkit._findClass(ClassLoaderReflectionToolkit.java:107) at hudson.ClassicPluginStrategy$DependencyClassLoader.findClass(ClassicPluginStrategy.java:646) at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:589) at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:522) at jenkins.util.AntClassLoader.findBaseClass(AntClassLoader.java:1437) at jenkins.util.AntClassLoader.loadClass(AntClassLoader.java:1124) at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:522) at java.base/java.lang.ClassLoader.defineClass1(Native Method) at java.base/java.lang.ClassLoader.defineClass(ClassLoader.java:1017) at jenkins.util.AntClassLoader.defineClassFromData(AntClassLoader.java:1188) at jenkins.util.AntClassLoader.getClassFromStream(AntClassLoader.java:1356) at jenkins.util.AntClassLoader.findClassInComponents(AntClassLoader.java:1408) at jenkins.util.AntClassLoader.findClass(AntClassLoader.java:1373) at jenkins.util.AntClassLoader.loadClass(AntClassLoader.java:1128) at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:522) at java.base/java.lang.Class.forName0(Native Method) at java.base/java.lang.Class.forName(Class.java:398) at java.base/sun.reflect.generics.factory.CoreReflectionFactory.makeNamedType(CoreReflectionFactory.java:114) at java.base/sun.reflect.generics.visitor.Reifier.visitClassTypeSignature(Reifier.java:125) at java.base/sun.reflect.generics.tree.ClassTypeSignature.accept(ClassTypeSignature.java:49) at java.base/sun.reflect.annotation.AnnotationParser.parseSig(AnnotationParser.java:440) at java.base/sun.reflect.annotation.AnnotationParser.parseClassValue(AnnotationParser.java:421) at java.base/sun.reflect.annotation.AnnotationParser.parseMemberValue(AnnotationParser.java:350) at java.base/sun.reflect.annotation.AnnotationParser.parseAnnotation2(AnnotationParser.java:287) at java.base/sun.reflect.annotation.AnnotationParser.parseAnnotations2(AnnotationParser.java:121) at java.base/sun.reflect.annotation.AnnotationParser.parseAnnotations(AnnotationParser.java:73) at java.base/java.lang.Class.createAnnotationData(Class.java:3757) at java.base/java.lang.Class.annotationData(Class.java:3746) at java.base/java.lang.Class.getAnnotation(Class.java:3651) at com.cloudbees.plugins.credentials.CredentialsResolver.getResolver(CredentialsResolver.java:124) at com.cloudbees.plugins.credentials.CredentialsProvider.listCredentials(CredentialsProvider.java:471) at com.cloudbees.plugins.credentials.CredentialsProvider.listCredentials(CredentialsProvider.java:603) at com.cloudbees.plugins.credentials.common.AbstractIdCredentialsListBoxModel.includeMatchingAs(AbstractIdCredentialsListBoxModel.java:476) at com.cloudbees.plugins.credentials.common.AbstractIdCredentialsListBoxModel.includeAs(AbstractIdCredentialsListBoxModel.java:397) at jenkins.plugins.slack.SlackNotifier$DescriptorImpl.findTokenCredentialIdItems(SlackNotifier.java:816) at jenkins.plugins.slack.SlackNotifier$DescriptorImpl.doFillTokenCredentialIdItems(SlackNotifier.java:802) at java.base/java.lang.invoke.MethodHandle.invokeWithArguments(MethodHandle.java:710) at org.kohsuke.stapler.Function$MethodFunction.invoke(Function.java:393) at org.kohsuke.stapler.Function$InstanceFunction.invoke(Function.java:405) at org.kohsuke.stapler.Function.bindAndInvoke(Function.java:208) at org.kohsuke.stapler.Function.bindAndInvokeAndServeResponse(Function.java:141) at org.kohsuke.stapler.MetaClass$11.doDispatch(MetaClass.java:536) at org.kohsuke.stapler.NameBasedDispatcher.dispatch(NameBasedDispatcher.java:58) at org.kohsuke.stapler.Stapler.tryInvoke(Stapler.java:766) Caused: javax.servlet.ServletException at org.kohsuke.stapler.Stapler.tryInvoke(Stapler.java:816) at org.kohsuke.stapler.Stapler.invoke(Stapler.java:898) at org.kohsuke.stapler.MetaClass$4.doDispatch(MetaClass.java:281) at org.kohsuke.stapler.NameBasedDispatcher.dispatch(NameBasedDispatcher.java:58) at org.kohsuke.stapler.Stapler.tryInvoke(Stapler.java:766) at org.kohsuke.stapler.Stapler.invoke(Stapler.java:898) at org.kohsuke.stapler.Stapler.invoke(Stapler.java:694) at org.kohsuke.stapler.Stapler.service(Stapler.java:240) at javax.servlet.http.HttpServlet.service(HttpServlet.java:790) at org.eclipse.jetty.servlet.ServletHolder.handle(ServletHolder.java:799) at org.eclipse.jetty.servlet.ServletHandler$ChainEnd.doFilter(ServletHandler.java:1626) at hudson.util.PluginServletFilter$1.doFilter(PluginServletFilter.java:156) at jenkins.security.ResourceDomainFilter.doFilter(ResourceDomainFilter.java:80) at hudson.util.PluginServletFilter$1.doFilter(PluginServletFilter.java:153) at jenkins.telemetry.impl.UserLanguages$AcceptLanguageFilter.doFilter(UserLanguages.java:128) at hudson.util.PluginServletFilter$1.doFilter(PluginServletFilter.java:153) at hudson.util.PluginServletFilter.doFilter(PluginServletFilter.java:159) at org.eclipse.jetty.servlet.FilterHolder.doFilter(FilterHolder.java:193) at org.eclipse.jetty.servlet.ServletHandler$Chain.doFilter(ServletHandler.java:1601) at hudson.security.csrf.CrumbFilter.doFilter(CrumbFilter.java:153) at org.eclipse.jetty.servlet.FilterHolder.doFilter(FilterHolder.java:193) at org.eclipse.jetty.servlet.ServletHandler$Chain.doFilter(ServletHandler.java:1601) at hudson.security.ChainedServletFilter$1.doFilter(ChainedServletFilter.java:92) at jenkins.security.AcegiSecurityExceptionFilter.doFilter(AcegiSecurityExceptionFilter.java:52) at hudson.security.ChainedServletFilter$1.doFilter(ChainedServletFilter.java:97) at hudson.security.UnwrapSecurityExceptionFilter.doFilter(UnwrapSecurityExceptionFilter.java:53) at hudson.security.ChainedServletFilter$1.doFilter(ChainedServletFilter.java:97) at org.springframework.security.web.access.ExceptionTranslationFilter.doFilter(ExceptionTranslationFilter.java:121) at org.springframework.security.web.access.ExceptionTranslationFilter.doFilter(ExceptionTranslationFilter.java:115) at hudson.security.ChainedServletFilter$1.doFilter(ChainedServletFilter.java:97) at org.springframework.security.web.authentication.AnonymousAuthenticationFilter.doFilter(AnonymousAuthenticationFilter.java:105) at hudson.security.ChainedServletFilter$1.doFilter(ChainedServletFilter.java:97) at org.springframework.security.web.authentication.rememberme.RememberMeAuthenticationFilter.doFilter(RememberMeAuthenticationFilter.java:133) at org.springframework.security.web.authentication.rememberme.RememberMeAuthenticationFilter.doFilter(RememberMeAuthenticationFilter.java:92) at hudson.security.ChainedServletFilter$1.doFilter(ChainedServletFilter.java:97) at org.springframework.security.web.authentication.AbstractAuthenticationProcessingFilter.doFilter(AbstractAuthenticationProcessingFilter.java:218) at org.springframework.security.web.authentication.AbstractAuthenticationProcessingFilter.doFilter(AbstractAuthenticationProcessingFilter.java:212) at hudson.security.ChainedServletFilter$1.doFilter(ChainedServletFilter.java:97) at jenkins.security.BasicHeaderProcessor.doFilter(BasicHeaderProcessor.java:97) at hudson.security.ChainedServletFilter$1.doFilter(ChainedServletFilter.java:97) at org.springframework.security.web.context.SecurityContextPersistenceFilter.doFilter(SecurityContextPersistenceFilter.java:110) at org.springframework.security.web.context.SecurityContextPersistenceFilter.doFilter(SecurityContextPersistenceFilter.java:80) at hudson.security.HttpSessionContextIntegrationFilter2.doFilter(HttpSessionContextIntegrationFilter2.java:62) at hudson.security.ChainedServletFilter$1.doFilter(ChainedServletFilter.java:97) at hudson.security.ChainedServletFilter.doFilter(ChainedServletFilter.java:109) at hudson.security.HudsonFilter.doFilter(HudsonFilter.java:171) at org.eclipse.jetty.servlet.FilterHolder.doFilter(FilterHolder.java:193) at org.eclipse.jetty.servlet.ServletHandler$Chain.doFilter(ServletHandler.java:1601) at org.kohsuke.stapler.compression.CompressionFilter.doFilter(CompressionFilter.java:51) at org.eclipse.jetty.servlet.FilterHolder.doFilter(FilterHolder.java:193) at org.eclipse.jetty.servlet.ServletHandler$Chain.doFilter(ServletHandler.java:1601) at hudson.util.CharacterEncodingFilter.doFilter(CharacterEncodingFilter.java:85) at org.eclipse.jetty.servlet.FilterHolder.doFilter(FilterHolder.java:193) at org.eclipse.jetty.servlet.ServletHandler$Chain.doFilter(ServletHandler.java:1601) at org.kohsuke.stapler.DiagnosticThreadNameFilter.doFilter(DiagnosticThreadNameFilter.java:30) at org.eclipse.jetty.servlet.FilterHolder.doFilter(FilterHolder.java:193) at org.eclipse.jetty.servlet.ServletHandler$Chain.doFilter(ServletHandler.java:1601) at jenkins.security.SuspiciousRequestFilter.doFilter(SuspiciousRequestFilter.java:39) at org.eclipse.jetty.servlet.FilterHolder.doFilter(FilterHolder.java:193) at org.eclipse.jetty.servlet.ServletHandler$Chain.doFilter(ServletHandler.java:1601) at org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:548) at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:143) at org.eclipse.jetty.security.SecurityHandler.handle(SecurityHandler.java:578) at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:127) at org.eclipse.jetty.server.handler.ScopedHandler.nextHandle(ScopedHandler.java:235) at org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:1624) at org.eclipse.jetty.server.handler.ScopedHandler.nextHandle(ScopedHandler.java:233) at org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1434) at org.eclipse.jetty.server.handler.ScopedHandler.nextScope(ScopedHandler.java:188) at org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:501) at org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:1594) at org.eclipse.jetty.server.handler.ScopedHandler.nextScope(ScopedHandler.java:186) at org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:1349) at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:141) at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:127) at org.eclipse.jetty.server.Server.handle(Server.java:516) at org.eclipse.jetty.server.HttpChannel.lambda$handle$1(HttpChannel.java:388) at org.eclipse.jetty.server.HttpChannel.dispatch(HttpChannel.java:633) at org.eclipse.jetty.server.HttpChannel.handle(HttpChannel.java:380) at org.eclipse.jetty.server.HttpConnection.onFillable(HttpConnection.java:277) at org.eclipse.jetty.io.AbstractConnection$ReadCallback.succeeded(AbstractConnection.java:311) at org.eclipse.jetty.io.FillInterest.fillable(FillInterest.java:105) at org.eclipse.jetty.io.ChannelEndPoint$1.run(ChannelEndPoint.java:104) at org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.runTask(EatWhatYouKill.java:338) at org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.doProduce(EatWhatYouKill.java:315) at org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.tryProduce(EatWhatYouKill.java:173) at org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.run(EatWhatYouKill.java:131) at org.eclipse.jetty.util.thread.ReservedThreadExecutor$ReservedThread.run(ReservedThreadExecutor.java:386) at org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:883) at org.eclipse.jetty.util.thread.QueuedThreadPool$Runner.run(QueuedThreadPool.java:1034) at java.base/java.lang.Thread.run(Thread.java:829)Evaluation
This is a regression introduced in 2.309 by registering
AntClassLoaderas parallel-capable. When the call toregisterAsParallelCapable()is removed fromjenkins.util.AntClassLoader, the problem can no longer be reproduced. The problem also cannot be reproduced when using the experimental support forURLClassLoader2introduced in 2.310, even though this is registered as parallel-capable.Note that registering
AntClassLoaderas parallel-capable was an upstream change made on September 21, 2016. We suspect the upstream change was made in error, as the implementation is still usingsynchronizedmethods rather thangetClassLoadingLock.Short-term solution (this PR)
Restore the status quo by no longer registering
AntClassLoader(or its subclassPluginFirstClassLoader) as parallel-capable. With this change, the problem can no longer be reproduced. This is intended to ensure stability for the forthcoming 2.31x LTS release.Long-term solution (not this PR)
Once the 2.31x LTS release is shipped, we plan to continue the work to make
URLClassLoader2the default class loader with the goal of deprecating and eventually deleting usages ofAntClassLoader. This change requires more testing and is not appropriate for the forthcoming 2.31x LTS release; however, it would be appropriate to land such a change at the beginning of a new LTS cycle once enough users have upgraded to recent versions of the Bouncy Castle API plugin (a prerequisite for the use ofURLClassLoader2).Proposed changelog entries
LinkageErrorduring class loading (regression in 2.309).Proposed upgrade guidelines
N/A
Submitter checklist
Proposed changelog entriessection only if there are breaking changes or other changes which may require extra steps from users during the upgradeDesired reviewers
@mention
Maintainer checklist
Before the changes are marked as
ready-for-merge:Proposed changelog entriesare correctupgrade-guide-neededlabel is set and there is aProposed upgrade guidelinessection in the PR title. (example)lts-candidateto be considered (see query).