Multi-Branch Project Plugin: NoClassDefFoundError: Could not initialize class org.eclipse.jgit.transport.Transport

[Alex Miles]

Hi all,

I'm trying to set up builds for my git project, and I want to have a build for each branch, and also for pull requests, so I can get some feedback in version control. I'm trying to use the Multi-Branch Project Plugin (https://wiki.jenkins-ci.org/display/JENKINS/Multi-Branch+Project+Plugin) as a starting point but I can't get it to sync the branches.

I'm not a Java developer, so I feel pretty out of my depth troubleshooting this, but I've done my best. It looks to me like a problem to do with JGit, which I understand is a native Java git implementation, which is used by the Jenkins Git plugin, which the Multi-Branch Project Plugin is calling via the SCM API. I found configuration options for Git/JGit in the system configuration settings, and tried adjusting them, but to no avail.

I've also tried installing the libjgit-java package.

System details:

Ubuntu trusty

Jenkins 1.633

GIT client plugin 1.19.0
GIT plugin 2.4.0
Multi-Branch Project Plugin 0.3

The repo is on Bitbucket, if that makes any difference, and I'm using an SSH key to authenticate. Those credentials work fine on a freestyle project not using the multi-branch plugin, although not when I "force" use of JGit but removing the configuration setting where I specify a path to a git executable. Which also seems to point to there being a problem with JGit in my environment.

I'd be grateful for any help.

In the "Sync Branches Log" of my project I have the following:

Started on Oct 14, 2015 1:41:02 PM
Setting origin to g...@bitbucket.org:alex/myproject.git
Fetching origin...
FATAL: Could not initialize class org.eclipse.jgit.transport.Transport
java.lang.NoClassDefFoundError: Could not initialize class org.eclipse.jgit.transport.Transport
	at org.eclipse.jgit.api.FetchCommand.call(FetchCommand.java:120)
	at org.jenkinsci.plugins.gitclient.JGitAPIImpl.fetch(JGitAPIImpl.java:672)
	at jenkins.plugins.git.AbstractGitSCMSource.retrieve(AbstractGitSCMSource.java:171)
	at jenkins.scm.api.SCMSource.fetch(SCMSource.java:141)
	at jenkins.scm.api.SCMSource.retrieve(SCMSource.java:180)
	at jenkins.scm.api.SCMSource.fetch(SCMSource.java:167)
	at com.github.mjdetullio.jenkins.plugins.multibranch.AbstractMultiBranchProject._syncBranches(AbstractMultiBranchProject.java:981)
	at com.github.mjdetullio.jenkins.plugins.multibranch.AbstractMultiBranchProject.syncBranches(AbstractMultiBranchProject.java:948)
	at com.github.mjdetullio.jenkins.plugins.multibranch.SyncBranchesTrigger.run(SyncBranchesTrigger.java:102)
	at com.github.mjdetullio.jenkins.plugins.multibranch.AbstractMultiBranchProject.doConfigSubmit(AbstractMultiBranchProject.java:904)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:606)
	at org.kohsuke.stapler.Function$InstanceFunction.invoke(Function.java:298)
	at org.kohsuke.stapler.Function.bindAndInvoke(Function.java:161)
	at org.kohsuke.stapler.Function.bindAndInvokeAndServeResponse(Function.java:96)
	at org.kohsuke.stapler.MetaClass$1.doDispatch(MetaClass.java:121)
	at org.kohsuke.stapler.NameBasedDispatcher.dispatch(NameBasedDispatcher.java:53)
	at org.kohsuke.stapler.Stapler.tryInvoke(Stapler.java:746)
	at org.kohsuke.stapler.Stapler.invoke(Stapler.java:876)
	at org.kohsuke.stapler.MetaClass$6.doDispatch(MetaClass.java:249)
	at org.kohsuke.stapler.NameBasedDispatcher.dispatch(NameBasedDispatcher.java:53)
	at org.kohsuke.stapler.Stapler.tryInvoke(Stapler.java:746)
	at org.kohsuke.stapler.Stapler.invoke(Stapler.java:876)
	at org.kohsuke.stapler.Stapler.invoke(Stapler.java:649)
	at org.kohsuke.stapler.Stapler.service(Stapler.java:238)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:848)
	at org.eclipse.jetty.servlet.ServletHolder.handle(ServletHolder.java:686)
	at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1494)
	at hudson.util.PluginServletFilter$1.doFilter(PluginServletFilter.java:132)
	at hudson.plugins.greenballs.GreenBallFilter.doFilter(GreenBallFilter.java:58)
	at hudson.util.PluginServletFilter$1.doFilter(PluginServletFilter.java:129)
	at hudson.util.PluginServletFilter.doFilter(PluginServletFilter.java:123)
	at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1482)
	at hudson.security.csrf.CrumbFilter.doFilter(CrumbFilter.java:49)
	at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1482)
	at hudson.security.ChainedServletFilter$1.doFilter(ChainedServletFilter.java:84)
	at hudson.security.ChainedServletFilter.doFilter(ChainedServletFilter.java:76)
	at hudson.security.HudsonFilter.doFilter(HudsonFilter.java:171)
	at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1482)
	at org.kohsuke.stapler.compression.CompressionFilter.doFilter(CompressionFilter.java:49)
	at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1482)
	at hudson.util.CharacterEncodingFilter.doFilter(CharacterEncodingFilter.java:81)
	at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1482)
	at org.kohsuke.stapler.DiagnosticThreadNameFilter.doFilter(DiagnosticThreadNameFilter.java:30)
	at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1474)
	at org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:499)
	at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:137)
	at org.eclipse.jetty.security.SecurityHandler.handle(SecurityHandler.java:533)
	at org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:231)
	at org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1086)
	at org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:428)
	at org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:193)
	at org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:1020)
	at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:135)
	at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:116)
	at org.eclipse.jetty.server.Server.handle(Server.java:370)
	at org.eclipse.jetty.server.AbstractHttpConnection.handleRequest(AbstractHttpConnection.java:489)
	at org.eclipse.jetty.server.AbstractHttpConnection.content(AbstractHttpConnection.java:960)
	at org.eclipse.jetty.server.AbstractHttpConnection$RequestHandler.content(AbstractHttpConnection.java:1021)
	at org.eclipse.jetty.http.HttpParser.parseNext(HttpParser.java:865)
	at org.eclipse.jetty.http.HttpParser.parseAvailable(HttpParser.java:240)
	at org.eclipse.jetty.server.AsyncHttpConnection.handle(AsyncHttpConnection.java:82)
	at org.eclipse.jetty.io.nio.SelectChannelEndPoint.handle(SelectChannelEndPoint.java:668)
	at org.eclipse.jetty.io.nio.SelectChannelEndPoint$1.run(SelectChannelEndPoint.java:52)
	at winstone.BoundedExecutorService$1.run(BoundedExecutorService.java:77)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
	at java.lang.Thread.run(Thread.java:745)
Done. Took 4 ms

[Timo M]

i have exactly the same error. Is there a solution?

[Emmanuel Vanhoucke]

Exactly, the same problem. I came back in a previous version of Jenkins and everithing was ok...

[Timo M]

which version do you use where it is working again?
hope this issue will be fixed soon, need the multi column plugin running :/