I have nothing jumping to mind... this looks like something to do with remoting though... in other words the class is failing to load on the remote classloader not Jenkins core's classloader itself.... which probably points to Kohsuke as the best placed to comment. Robert, you could always open a support ticket if you have a support contract with somebody... ;-)
On 7 April 2014 15:57, Mark Waite <[email protected]> wrote: > Unfortunately, I don't have any reasonable suggestions for further > techniques to debug the classloading issue. I am hopeful that Kohsuke or > Jesse or Stephen have suggestions, since I think classloading is handled > deep in core, well below the layers of my comfort. > > As far as I know, most of the jar file dependencies are "up to date" in > the git-client-plugin pom.xml and the git-plugin pom.xml. > > There are two dependencies intentionally pointed at older versions. The > "guava" dependency is kept at 11.0.01 because Jenkins core keeps its > version at 11.0.1. The multiple-scms dependency is kept at 0.2 because > there is a known problem with the multiple-scms plugin 0.3. Do you have > the multiple SCMs plugin installed? Is it enabled? Are you using it? > > Mark Waite > > Mark Waite > > > On Mon, Apr 7, 2014 at 8:44 AM, Sandell, Robert < > [email protected]> wrote: > >> Yes those look like similar issues. >> >> Any thoughts on how I can continue to debug the issue? >> >> Few jobs on the currently affected masters use the git plugin, so I can >> keep them alive for a little bit more before I need to take drastic >> measures. >> >> >> >> >> >> >> >> *Robert Sandell* >> >> *Sony Mobile Communications* >> >> Tel: +46 10 80 12721 >> >> sonymobile.com >> >> >> >> *From:* [email protected] [mailto: >> [email protected]] *On Behalf Of *Mark Waite >> *Sent:* den 4 april 2014 04:38 >> *To:* [email protected] >> *Subject:* Re: Classloading issues between git and git-client plugins?! >> >> >> >> In case it helps, https://issues.jenkins-ci.org/browse/JENKINS-21520reports >> something similar, though the investigation there has not shown any >> way to repeat the bug. >> >> >> >> Likewise https://issues.jenkins-ci.org/browse/JENKINS-20254 seems to be >> in a similar area. >> >> >> >> On Thu, Apr 3, 2014 at 9:19 AM, Mark Waite <[email protected]> >> wrote: >> >> It's the credentials plugin installed, and current, and enabled? >> >> There have been other reports of a class loader failure, but we have not >> been able to duplicate them. >> >> On Apr 3, 2014 9:00 AM, "Sandell, Robert" <[email protected]> >> wrote: >> >> Onto my next post LTS upgrade problem. >> >> >> >> Suddenly we see this stacktrace in build logs when the git plugin is >> fetching from the repository. >> >> >> >> Caused by: java.lang.NoClassDefFoundError: >> org.jenkinsci.plugins.gitclient.GitClient >> >> at java.lang.Class.getDeclaredFields0(Native Method) >> >> at java.lang.Class.privateGetDeclaredFields(Class.java:2397) >> >> at java.lang.Class.getDeclaredField(Class.java:1946) >> >> at >> java.io.ObjectStreamClass.getDeclaredSUID(ObjectStreamClass.java:1659) >> >> at >> java.io.ObjectStreamClass.access$700(ObjectStreamClass.java:72) >> >> at java.io.ObjectStreamClass$2.run(ObjectStreamClass.java:480) >> >> at java.io.ObjectStreamClass$2.run(ObjectStreamClass.java:468) >> >> at java.security.AccessController.doPrivileged(Native Method) >> >> at java.io.ObjectStreamClass.<init>(ObjectStreamClass.java:468) >> >> at java.io.ObjectStreamClass.lookup(ObjectStreamClass.java:365) >> >> at >> java.io.ObjectStreamClass.initNonProxy(ObjectStreamClass.java:602) >> >> at >> java.io.ObjectInputStream.readNonProxyDesc(ObjectInputStream.java:1622) >> >> at >> java.io.ObjectInputStream.readClassDesc(ObjectInputStream.java:1517) >> >> at >> java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1771) >> >> at >> java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1350) >> >> at >> java.io.ObjectInputStream.readObject(ObjectInputStream.java:370) >> >> at hudson.remoting.UserRequest.deserialize(UserRequest.java:182) >> >> at hudson.remoting.UserResponse.retrieve(UserRequest.java:211) >> >> at hudson.remoting.Channel.call(Channel.java:723) >> >> >> >> A similar stacktrace if we try to run the build on the master instead. >> >> >> >> We got this problem at one time when we first upgraded (everything), my >> first guess was that it was because of some library changes in git-client >> so we cleaned up some old hpi and jpi files and installed the previous >> micro version of git and git client, started Jenkins and it worked again. >> >> The other servers didn't have the problem when we upgraded them. But >> suddenly yesterday it happened in runtime. On Monday the git plugin worked >> and on Tuesday it didn't. >> >> >> >> I've tried some Groovy debugging with the following script: >> >> >> >> def gitClient = Jenkins.instance.pluginManager.getPlugin("git-client") >> >> >> println(gitClient.classLoader.findLoadedClass("org.jenkinsci.plugins.gitclient.GitClient")) >> >> //output: interface org.jenkinsci.plugins.gitclient.GitClient >> >> >> println(Jenkins.instance.pluginManager.uberClassLoader.findClass("org.jenkinsci.plugins.gitclient.GitClient")) >> >> //output: interface org.jenkinsci.plugins.gitclient.GitClient >> >> >> >> def gitPlugin = Jenkins.instance.pluginManager.getPlugin("git") >> >> >> println(gitPlugin.classLoader.findLoadedClass("hudson.plugins.git.GitSCM")) >> >> //output: class hudson.plugins.git.GitSCM >> >> println(Jenkins.instance.pluginManager.uberClassLoader.findClass("hudson.plugins.git.GitSCM")) >> >> >> //output: class hudson.plugins.git.GitSCM >> >> >> println(gitPlugin.classLoader.findLoadedClass("org.jenkinsci.plugins.gitclient.GitClient")) >> >> //output: interface org.jenkinsci.plugins.gitclient.GitClient >> >> >> >> def job = Jenkins.instance.getItem("Tools_GerritTester") >> >> println(job.getClass().getClassLoader().findLoadedClass("org.jenkinsci.plugins.gitclient.GitClient")) >> >> >> //output: null >> >> println(job.getClass().getClassLoader().findLoadedClass("hudson.plugins.git.GitSCM")) >> >> >> //output: null >> >> >> println(job.getScm().getClass().getClassLoader().findLoadedClass("org.jenkinsci.plugins.gitclient.GitClient")) >> >> //output: interface org.jenkinsci.plugins.gitclient.GitClient >> >> >> >> >> >> The output is the same whether I run it on a master with the problem or >> one that doesn't have it. >> >> >> >> Are there any other classloading scenarios that I've missed, or something >> else I can try to find the issue? I'd prefer to not just reboot and forget >> about it ;) >> >> >> >> >> >> >> >> *Robert Sandell* >> >> Staff Engineer >> >> Development Environment >> >> Software Environment and Product Configuration >> >> >> >> *Sony Mobile Communications* >> >> Tel: +46 10 80 12721 >> >> [email protected] <[email protected]> >> >> sonymobile.com >> >> >> >> [image: Sony logotype_23px height_Email_144dpi] >> >> >> >> >> >> -- >> You received this message because you are subscribed to the Google Groups >> "Jenkins Developers" group. >> To unsubscribe from this group and stop receiving emails from it, send an >> email to [email protected]. >> For more options, visit https://groups.google.com/d/optout. >> >> >> >> >> >> -- >> >> Thanks! >> >> Mark Waite >> >> -- >> You received this message because you are subscribed to the Google Groups >> "Jenkins Developers" group. >> To unsubscribe from this group and stop receiving emails from it, send an >> email to [email protected]. >> For more options, visit https://groups.google.com/d/optout. >> >> -- >> You received this message because you are subscribed to the Google Groups >> "Jenkins Developers" group. >> To unsubscribe from this group and stop receiving emails from it, send an >> email to [email protected]. >> For more options, visit https://groups.google.com/d/optout. >> > > > > -- > Thanks! > Mark Waite > > -- > You received this message because you are subscribed to the Google Groups > "Jenkins Developers" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [email protected]. > For more options, visit https://groups.google.com/d/optout. > -- You received this message because you are subscribed to the Google Groups "Jenkins Developers" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. For more options, visit https://groups.google.com/d/optout.
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