See https://hudson.apache.org/hudson/job/Hadoop-Hdfs-trunk/543/
################################################################################### ########################## LAST 60 LINES OF THE CONSOLE ########################### [...truncated 9 lines...] at hudson.model.AbstractBuild$AbstractRunner.checkout(AbstractBuild.java:479) at hudson.model.AbstractBuild$AbstractRunner.run(AbstractBuild.java:411) at hudson.model.Run.run(Run.java:1324) at hudson.model.FreeStyleBuild.run(FreeStyleBuild.java:46) at hudson.model.ResourceController.execute(ResourceController.java:88) at hudson.model.Executor.run(Executor.java:139) Caused by: java.io.IOException: Remote call on hadoop8 failed at hudson.remoting.Channel.call(Channel.java:639) at hudson.FilePath.act(FilePath.java:742) ... 10 more Caused by: java.lang.NoClassDefFoundError: java/net/SocketTimeoutException at org.tmatesoft.svn.core.internal.io.dav.http.HTTPConnection.request(HTTPConnection.java:380) at org.tmatesoft.svn.core.internal.io.dav.http.HTTPConnection.request(HTTPConnection.java:275) at org.tmatesoft.svn.core.internal.io.dav.http.HTTPConnection.request(HTTPConnection.java:263) at org.tmatesoft.svn.core.internal.io.dav.DAVConnection.doPropfind(DAVConnection.java:126) at org.tmatesoft.svn.core.internal.io.dav.DAVUtil.getProperties(DAVUtil.java:73) at org.tmatesoft.svn.core.internal.io.dav.DAVUtil.getResourceProperties(DAVUtil.java:79) at org.tmatesoft.svn.core.internal.io.dav.DAVUtil.getPropertyValue(DAVUtil.java:93) at org.tmatesoft.svn.core.internal.io.dav.DAVUtil.getBaselineProperties(DAVUtil.java:245) at org.tmatesoft.svn.core.internal.io.dav.DAVUtil.getBaselineInfo(DAVUtil.java:184) at org.tmatesoft.svn.core.internal.io.dav.DAVRepository.getLatestRevision(DAVRepository.java:182) at org.tmatesoft.svn.core.wc.SVNBasicClient.getRevisionNumber(SVNBasicClient.java:482) at org.tmatesoft.svn.core.wc.SVNBasicClient.getLocations(SVNBasicClient.java:873) at org.tmatesoft.svn.core.wc.SVNBasicClient.createRepository(SVNBasicClient.java:534) at org.tmatesoft.svn.core.wc.SVNUpdateClient.doCheckout(SVNUpdateClient.java:901) at hudson.scm.SubversionSCM$CheckOutTask.invoke(SubversionSCM.java:678) at hudson.scm.SubversionSCM$CheckOutTask.invoke(SubversionSCM.java:596) at hudson.FilePath$FileCallableWrapper.call(FilePath.java:1899) at hudson.remoting.UserRequest.perform(UserRequest.java:114) at hudson.remoting.UserRequest.perform(UserRequest.java:48) at hudson.remoting.Request$2.run(Request.java:270) at java.util.concurrent.Executors$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$Worker.run(ThreadPoolExecutor.java:908) at java.lang.Thread.run(Thread.java:619) Caused by: java.lang.ClassNotFoundException: Classloading from system classloader disabled at hudson.remoting.RemoteClassLoader$ClassLoaderProxy.fetch2(RemoteClassLoader.java:399) at sun.reflect.GeneratedMethodAccessor103.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:597) at hudson.remoting.RemoteInvocationHandler$RPCRequest.perform(RemoteInvocationHandler.java:274) at hudson.remoting.Request$2.run(Request.java:270) at java.util.concurrent.Executors$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:662) [FINDBUGS] Skipping publisher since build result is FAILURE Publishing Javadoc Archiving artifacts Recording test results Recording fingerprints Publishing Clover coverage report... No Clover report will be published due to a Build Failure Email was triggered for: Failure Sending email for trigger: Failure ################################################################################### ############################## FAILED TESTS (if any) ############################## No tests ran.