See https://builds.apache.org/job/ZooKeeper-trunk/1271/
################################################################################### ########################## LAST 60 LINES OF THE CONSOLE ########################### [...truncated 176372 lines...] at hudson.model.AbstractBuild$AbstractRunner.perform(AbstractBuild.java:682) at hudson.model.AbstractBuild$AbstractRunner.performAllBuildSteps(AbstractBuild.java:657) at hudson.model.AbstractBuild$AbstractRunner.performAllBuildSteps(AbstractBuild.java:635) at hudson.model.Build$RunnerImpl.post2(Build.java:162) at hudson.model.AbstractBuild$AbstractRunner.post(AbstractBuild.java:604) at hudson.model.Run.run(Run.java:1401) at hudson.model.FreeStyleBuild.run(FreeStyleBuild.java:46) at hudson.model.ResourceController.execute(ResourceController.java:88) at hudson.model.Executor.run(Executor.java:230) Caused by: java.io.IOException: Remote call on hadoop8 failed at hudson.remoting.Channel.call(Channel.java:673) at hudson.FilePath.act(FilePath.java:747) ... 13 more Caused by: java.lang.ClassNotFoundException: Failed to deserialize the Callable object. Perhaps you needed to implement DelegatingCallable? at hudson.remoting.UserRequest.perform(UserRequest.java:100) 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:662) Caused by: java.lang.ClassNotFoundException: hudson.plugins.findbugs.parser.FindBugsParser at java.net.URLClassLoader$1.run(URLClassLoader.java:202) at java.security.AccessController.doPrivileged(Native Method) at java.net.URLClassLoader.findClass(URLClassLoader.java:190) at java.lang.ClassLoader.loadClass(ClassLoader.java:306) at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:301) at java.lang.ClassLoader.loadClass(ClassLoader.java:247) at java.lang.Class.forName0(Native Method) at java.lang.Class.forName(Class.java:247) at java.io.ObjectInputStream.resolveClass(ObjectInputStream.java:603) at hudson.remoting.ObjectInputStreamEx.resolveClass(ObjectInputStreamEx.java:50) at java.io.ObjectInputStream.readNonProxyDesc(ObjectInputStream.java:1574) at java.io.ObjectInputStream.readClassDesc(ObjectInputStream.java:1495) at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1731) at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1328) at java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:1946) at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1870) at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1752) at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1328) at java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:1946) at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1870) at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1752) at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1328) at java.io.ObjectInputStream.readObject(ObjectInputStream.java:350) at hudson.remoting.UserRequest.deserialize(UserRequest.java:182) at hudson.remoting.UserRequest.perform(UserRequest.java:98) ... 8 more [WARNINGS] Skipping publisher since build result is FAILURE Archiving artifacts Publishing Clover coverage report... No Clover report will be published due to a Build Failure Recording test results Publishing Javadoc Recording fingerprints Email was triggered for: Failure Sending email for trigger: Failure ################################################################################### ############################## FAILED TESTS (if any) ############################## All tests passed