[jetty-build] Build failed in Hudson: jetty-nightly-8 #116

[hudsonbuild@xxxxxxxxxxx]

See <https://hudson.eclipse.org/hudson/job/jetty-nightly-8/116/>

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Failed to access build log

hudson.util.IOException2: remote file operation failed: /opt/users/hudsonbuild/workspace/jetty-nightly-8 at hudson.remoting.Channel@44e58d21:Fastlane
	at hudson.FilePath.act(FilePath.java:754)
	at hudson.FilePath.act(FilePath.java:740)
	at hudson.FilePath.toURI(FilePath.java:795)
	at hudson.tasks.MailSender.createFailureMail(MailSender.java:283)
	at hudson.tasks.MailSender.getMail(MailSender.java:158)
	at hudson.tasks.MailSender.execute(MailSender.java:106)
	at hudson.tasks.Mailer.perform(Mailer.java:126)
	at hudson.tasks.BuildStepMonitor$1.perform(BuildStepMonitor.java:19)
	at hudson.model.AbstractBuild$AbstractRunner.perform(AbstractBuild.java:630)
	at hudson.model.AbstractBuild$AbstractRunner.performAllBuildSteps(AbstractBuild.java:608)
	at hudson.model.AbstractBuild$AbstractRunner.performAllBuildSteps(AbstractBuild.java:584)
	at hudson.model.Build$RunnerImpl.post2(Build.java:159)
	at hudson.model.AbstractBuild$AbstractRunner.post(AbstractBuild.java:553)
	at hudson.model.Run.run(Run.java:1391)
	at hudson.model.FreeStyleBuild.run(FreeStyleBuild.java:46)
	at hudson.model.ResourceController.execute(ResourceController.java:88)
	at hudson.model.Executor.run(Executor.java:145)
Caused by: java.io.IOException: Remote call on Fastlane failed
	at hudson.remoting.Channel.call(Channel.java:659)
	at hudson.FilePath.act(FilePath.java:747)
	... 16 more
Caused by: java.lang.LinkageError: loader constraint violation: loader (instance of hudson/remoting/RemoteClassLoader) previously initiated loading for a different type with name "hudson/model/TaskListener"
	at java.lang.ClassLoader.defineClass1(Native Method)
	at java.lang.ClassLoader.defineClassCond(ClassLoader.java:632)
	at java.lang.ClassLoader.defineClass(ClassLoader.java:616)
	at java.lang.ClassLoader.defineClass(ClassLoader.java:466)
	at hudson.remoting.RemoteClassLoader.loadClassFile(RemoteClassLoader.java:151)
	at hudson.remoting.RemoteClassLoader.findClass(RemoteClassLoader.java:131)
	at java.lang.ClassLoader.loadClass(ClassLoader.java:307)
	at java.lang.ClassLoader.loadClass(ClassLoader.java:248)
	at java.lang.Class.getDeclaredMethods0(Native Method)
	at java.lang.Class.privateGetDeclaredMethods(Class.java:2427)
	at java.lang.Class.getDeclaredMethod(Class.java:1935)
	at java.io.ObjectStreamClass.getPrivateMethod(ObjectStreamClass.java:1382)
	at java.io.ObjectStreamClass.access$1700(ObjectStreamClass.java:52)
	at java.io.ObjectStreamClass$2.run(ObjectStreamClass.java:438)
	at java.security.AccessController.doPrivileged(Native Method)
	at java.io.ObjectStreamClass.<init>(ObjectStreamClass.java:413)
	at java.io.ObjectStreamClass.lookup(ObjectStreamClass.java:310)
	at java.io.ObjectStreamClass.initNonProxy(ObjectStreamClass.java:547)
	at java.io.ObjectInputStream.readNonProxyDesc(ObjectInputStream.java:1583)
	at java.io.ObjectInputStream.readClassDesc(ObjectInputStream.java:1496)
	at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1732)
	at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1329)
	at java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:1947)
	at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1871)
	at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1753)
	at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1329)
	at java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:1947)
	at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1871)
	at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1753)
	at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1329)
	at java.io.ObjectInputStream.readObject(ObjectInputStream.java:351)
	at hudson.remoting.UserRequest.deserialize(UserRequest.java:178)
	at hudson.remoting.UserRequest.perform(UserRequest.java:98)
	at hudson.remoting.UserRequest.perform(UserRequest.java:48)
	at hudson.remoting.Request$2.run(Request.java:283)
	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:441)
	at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:303)
	at java.util.concurrent.FutureTask.run(FutureTask.java:138)
	at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
	at java.lang.Thread.run(Thread.java:619)