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Type: Bug
Resolution: Fixed
Priority: Blocker
Component/s: core, ivy-plugin
Labels:
Environment:
Windows Server 2008

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On two separate Jenkins servers, I'm unable to start Jenkins with the following error,

org.jvnet.hudson.reactor.ReactorException: java.lang.VerifyError: (class: org/apache/ivy/core/settings/IvySettings, method: getTriggers signature: ()Ljava/util/List;\) Illegal type in constant pool
	at org.jvnet.hudson.reactor.Reactor.execute(Reactor.java:246)
	at jenkins.InitReactorRunner.run(InitReactorRunner.java:43)
	at jenkins.model.Jenkins.executeReactor(Jenkins.java:906)
	at jenkins.model.Jenkins.<init>(Jenkins.java:806)
	at hudson.model.Hudson.<init>(Hudson.java:81)
	at hudson.model.Hudson.<init>(Hudson.java:77)
	at hudson.WebAppMain$3.run(WebAppMain.java:221)
Caused by: java.lang.VerifyError: (class: org/apache/ivy/core/settings/IvySettings, method: getTriggers signature: ()Ljava/util/List;\) Illegal type in constant pool
	at hudson.ivy.IvyBuildTrigger.getIvy(IvyBuildTrigger.java:234)
	at hudson.ivy.IvyBuildTrigger.recomputeModuleDescriptor(IvyBuildTrigger.java:337)
	at hudson.ivy.IvyBuildTrigger.getModuleDescriptor(IvyBuildTrigger.java:264)
	at hudson.ivy.IvyBuildTrigger.buildDependencyGraph(IvyBuildTrigger.java:446)
	at hudson.util.DescribableList.buildDependencyGraph(DescribableList.java:213)
	at hudson.model.Project.buildDependencyGraph(Project.java:179)
	at hudson.model.DependencyGraph.build(DependencyGraph.java:95)
	at jenkins.model.Jenkins.rebuildDependencyGraph(Jenkins.java:3598)
	at jenkins.model.Jenkins$20.run(Jenkins.java:2577)
	at org.jvnet.hudson.reactor.TaskGraphBuilder$TaskImpl.run(TaskGraphBuilder.java:146)
	at org.jvnet.hudson.reactor.Reactor.runTask(Reactor.java:259)
	at jenkins.model.Jenkins$7.runTask(Jenkins.java:895)
	at org.jvnet.hudson.reactor.Reactor$2.run(Reactor.java:187)
	at org.jvnet.hudson.reactor.Reactor$Node.run(Reactor.java:94)
	at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(Unknown Source)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
	at java.lang.Thread.run(Unknown Source)

I tried different versions, and I see this error with 1.527, 1.528, and 1.529. I've rolled back to 1.526 which is working.

Let me know if I can provide any additional information. Thanks!

Update:
I should also clarify that I'm using free-style projects with "Trigger the build of other projects based on the Ivy dependency management system" post-build action.

I installed another Jenkins system to debug this issue. On this fresh system, Jenkins started successfully. However, after each build, the verify error showed up in jenkins.err.log,

Sep 04, 2013 9:10:47 AM SEVERE hudson.model.Executor run
Executor threw an exception
java.lang.VerifyError: (class: org/apache/ivy/core/settings/IvySettings, method: getTriggers signature: ()Ljava/util/List;) Illegal type in constant pool
	at hudson.ivy.IvyBuildTrigger.getIvy(IvyBuildTrigger.java:234)
	at hudson.ivy.IvyBuildTrigger.recomputeModuleDescriptor(IvyBuildTrigger.java:337)
	at hudson.ivy.IvyBuildTrigger.perform(IvyBuildTrigger.java:418)
	at hudson.tasks.BuildStepMonitor$3.perform(BuildStepMonitor.java:45)
	at hudson.model.AbstractBuild$AbstractBuildExecution.perform(AbstractBuild.java:804)
	at hudson.model.AbstractBuild$AbstractBuildExecution.performAllBuildSteps(AbstractBuild.java:776)
	at hudson.model.Build$BuildExecution.cleanUp(Build.java:192)
	at hudson.model.Run.execute(Run.java:1648)
	at hudson.model.FreeStyleBuild.run(FreeStyleBuild.java:46)
	at hudson.model.ResourceController.execute(ResourceController.java:88)
	at hudson.model.Executor.run(Executor.java:247)

I turned on -verbose:class, and it looks like the right jar is being used,

[Loaded org.apache.ivy.core.sort.SortEngineSettings from file:/C:/Program%20Files%20(x86)/Jenkins/plugins/ivy/WEB-INF/lib/ivy-2.3.0.jar]
[Loaded org.apache.ivy.plugins.parser.ParserSettings from file:/C:/Program%20Files%20(x86)/Jenkins/plugins/ivy/WEB-INF/lib/ivy-2.3.0.jar]
[Loaded org.apache.ivy.core.publish.PublishEngineSettings from file:/C:/Program%20Files%20(x86)/Jenkins/plugins/ivy/WEB-INF/lib/ivy-2.3.0.jar]
[Loaded org.apache.ivy.core.deliver.DeliverEngineSettings from file:/C:/Program%20Files%20(x86)/Jenkins/plugins/ivy/WEB-INF/lib/ivy-2.3.0.jar]
[Loaded org.apache.ivy.core.check.CheckEngineSettings from file:/C:/Program%20Files%20(x86)/Jenkins/plugins/ivy/WEB-INF/lib/ivy-2.3.0.jar]
[Loaded org.apache.ivy.core.install.InstallEngineSettings from file:/C:/Program%20Files%20(x86)/Jenkins/plugins/ivy/WEB-INF/lib/ivy-2.3.0.jar]
[Loaded org.apache.ivy.plugins.resolver.ResolverSettings from file:/C:/Program%20Files%20(x86)/Jenkins/plugins/ivy/WEB-INF/lib/ivy-2.3.0.jar]
[Loaded org.apache.ivy.core.resolve.ResolveEngineSettings from file:/C:/Program%20Files%20(x86)/Jenkins/plugins/ivy/WEB-INF/lib/ivy-2.3.0.jar]
[Loaded org.apache.ivy.core.retrieve.RetrieveEngineSettings from file:/C:/Program%20Files%20(x86)/Jenkins/plugins/ivy/WEB-INF/lib/ivy-2.3.0.jar]
[Loaded org.apache.ivy.core.repository.RepositoryManagementEngineSettings from file:/C:/Program%20Files%20(x86)/Jenkins/plugins/ivy/WEB-INF/lib/ivy-2.3.0.jar]
[Loaded org.apache.ivy.core.settings.IvySettings from file:/C:/Program%20Files%20(x86)/Jenkins/plugins/ivy/WEB-INF/lib/ivy-2.3.0.jar]
[Loaded org.apache.ivy.core.RelativeUrlResolver from file:/C:/Program%20Files%20(x86)/Jenkins/plugins/ivy/WEB-INF/lib/ivy-2.3.0.jar]
[Loaded org.apache.ivy.core.NormalRelativeUrlResolver from file:/C:/Program%20Files%20(x86)/Jenkins/plugins/ivy/WEB-INF/lib/ivy-2.3.0.jar]
[Loaded org.apache.ivy.core.cache.RepositoryCacheManager from file:/C:/Program%20Files%20(x86)/Jenkins/plugins/ivy/WEB-INF/lib/ivy-2.3.0.jar]
[Loaded org.apache.ivy.plugins.lock.LockStrategy from file:/C:/Program%20Files%20(x86)/Jenkins/plugins/ivy/WEB-INF/lib/ivy-2.3.0.jar]
[Loaded org.apache.ivy.util.filter.Filter from file:/C:/Program%20Files%20(x86)/Jenkins/plugins/ivy/WEB-INF/lib/ivy-2.3.0.jar]
[Loaded org.apache.ivy.plugins.conflict.ConflictManager from file:/C:/Program%20Files%20(x86)/Jenkins/plugins/ivy/WEB-INF/lib/ivy-2.3.0.jar]
[Loaded org.apache.ivy.plugins.latest.LatestStrategy from file:/C:/Program%20Files%20(x86)/Jenkins/plugins/ivy/WEB-INF/lib/ivy-2.3.0.jar]
[Loaded org.apache.ivy.core.cache.ResolutionCacheManager from file:/C:/Program%20Files%20(x86)/Jenkins/plugins/ivy/WEB-INF/lib/ivy-2.3.0.jar]
[Loaded java.lang.VerifyError from C:\Java\jdk1.6.0_30_x64\jre\lib\rt.jar]

Also verified that the ivy-2.3.0.jar matched a freshly downloaded copy from apache.

Stepped through in a debugger. Sadly, there's not much additional information on a VerifyError. In an expression, I was able to resolve other classes in the ivy jar but not IvySettings.

Searching around the web, VerifyError can be frustrating to deal with. There is Good tools for debugging VerifyError? on StackOverflow. I tried using ASM as suggested in an answer, and no errors were reported. I haven't tried Krakatau yet.

I noticed that the fresh install of Jenkins 1.529 came with Java 1.7u25. I tried running with Java 1.6(u30) and ran into the same verify error.

is blocking

JENKINS-18677 Some jobs not loaded after jenkins restart: java.lang.NoSuchFieldError: triggers

Resolved

is related to

JENKINS-28781 bytecode-compatibility-transformer produces malformed bytecode

Closed

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