failure on multiple jobs due to Could not initialize class jnr.posix.JavaLibCHelper on F21 slaves

Hi, we have several jenkins jobs failing on different Fedora 21 hosts with error like: 13:27:55 ERROR: Failed to archive artifacts: exported-artifacts/* 13:27:55 java.io.IOException: java.util.concurrent.ExecutionException: java.lang.NoClassDefFoundError: Could not initialize class jnr.posix.JavaLibCHelper 13:27:55 at hudson.FilePath.copyRecursiveTo(FilePath.java:2047) 13:27:55 at jenkins.model.StandardArtifactManager.archive(StandardArtifactManager.java:61) 13:27:55 at hudson.tasks.ArtifactArchiver.perform(ArtifactArchiver.java:220) 13:27:55 at hudson.tasks.BuildStepMonitor$1.perform(BuildStepMonitor.java:20) 13:27:55 at hudson.model.AbstractBuild$AbstractBuildExecution.perform(AbstractBuild.java:772) 13:27:55 at hudson.model.AbstractBuild$AbstractBuildExecution.performAllBuildSteps(AbstractBuild.java:736) 13:27:55 at hudson.model.Build$BuildExecution.post2(Build.java:183) 13:27:55 at hudson.model.AbstractBuild$AbstractBuildExecution.post(AbstractBuild.java:685) 13:27:55 at hudson.model.Run.execute(Run.java:1765) 13:27:55 at hudson.matrix.MatrixRun.run(MatrixRun.java:146) 13:27:55 at hudson.model.ResourceController.execute(ResourceController.java:88) 13:27:55 at hudson.model.Executor.run(Executor.java:234) 13:27:55 Caused by: java.util.concurrent.ExecutionException: java.lang.NoClassDefFoundError: Could not initialize class jnr.posix.JavaLibCHelper 13:27:55 at hudson.remoting.Channel$3.adapt(Channel.java:772) 13:27:55 at hudson.remoting.Channel$3.adapt(Channel.java:767) 13:27:55 at hudson.remoting.FutureAdapter.get(FutureAdapter.java:55) 13:27:55 at hudson.FilePath.copyRecursiveTo(FilePath.java:2045) 13:27:55 ... 11 more 13:27:55 Caused by: java.lang.NoClassDefFoundError: Could not initialize class jnr.posix.JavaLibCHelper 13:27:55 at jnr.posix.JavaPOSIX.<init>(JavaPOSIX.java:31) 13:27:55 at jnr.posix.POSIXFactory.getJavaPOSIX(POSIXFactory.java:91) 13:27:55 at jnr.posix.POSIXFactory.loadPOSIX(POSIXFactory.java:57) 13:27:55 at jnr.posix.LazyPOSIX.loadPOSIX(LazyPOSIX.java:33) 13:27:55 at jnr.posix.LazyPOSIX.posix(LazyPOSIX.java:29) 13:27:55 at jnr.posix.LazyPOSIX.stat(LazyPOSIX.java:267) 13:27:55 at hudson.util.IOUtils.mode(IOUtils.java:128) 13:27:55 at hudson.util.io.TarArchiver.visit(TarArchiver.java:101) 13:27:55 at hudson.util.DirScanner.scanSingle(DirScanner.java:49) 13:27:55 at hudson.FilePath$ExplicitlySpecifiedDirScanner.scan(FilePath.java:2571) 13:27:55 at hudson.FilePath.writeToTar(FilePath.java:2083) 13:27:55 at hudson.FilePath.access$1000(FilePath.java:180) 13:27:55 at hudson.FilePath$41.invoke(FilePath.java:2024) 13:27:55 at hudson.FilePath$41.invoke(FilePath.java:2020) 13:27:55 at hudson.FilePath$FileCallableWrapper.call(FilePath.java:2492) 13:27:55 at hudson.remoting.UserRequest.perform(UserRequest.java:118) 13:27:55 at hudson.remoting.UserRequest.perform(UserRequest.java:48) 13:27:55 at hudson.remoting.Request$2.run(Request.java:328) 13:27:55 at hudson.remoting.InterceptingExecutorService$1.call(InterceptingExecutorService.java:72) 13:27:55 at java.util.concurrent.FutureTask.run(FutureTask.java:266) 13:27:55 at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) 13:27:55 at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) 13:27:55 at java.lang.Thread.run(Thread.java:745) can you please investigate and fix it? Reference jobs failing: fc21-vm01.phx.ovirt.org - http://jenkins.ovirt.org/job/jasper-reports_master_create-rpms_merged/lab... fc21-vm06.phx.ovirt.org - http://jenkins.ovirt.org/job/ioprocess_master_create-rpms-fc20-x86_64_mer... fc21-vm06.phx.ovirt.org - http://jenkins.ovirt.org/job/ioprocess_master_create-rpms-fc21-x86_64_mer... fc21-vm06.phx.ovirt.org - http://jenkins.ovirt.org/job/otopi_master_create-rpms_merged/667/label=fc... fc21-vm03.phx.ovirt.org - http://jenkins.ovirt.org/job/ovirt-engine-cli_master_create-rpms_merged/l... fc21-vm03.phx.ovirt.org - http://jenkins.ovirt.org/job/ovirt-engine-jboss-as_master_create-rpms_mer... -- Sandro Bonazzola Better technology. Faster innovation. Powered by community collaboration. See how it works at redhat.com