See https://builds.apache.org/job/ZooKeeper_branch34/1723/
################################################################################### ########################## LAST 60 LINES OF THE CONSOLE ########################### [...truncated 1471 lines...] [mkdir] Created dir: /home/jenkins/jenkins-slave/workspace/ZooKeeper_branch34/build/zookeeper-3.4.10-SNAPSHOT/dist-maven [copy] Copying 1 file to /home/jenkins/jenkins-slave/workspace/ZooKeeper_branch34/build/zookeeper-3.4.10-SNAPSHOT/dist-maven [copy] Copying 2 files to /home/jenkins/jenkins-slave/workspace/ZooKeeper_branch34/build/zookeeper-3.4.10-SNAPSHOT/dist-maven [copy] Copying 1 file to /home/jenkins/jenkins-slave/workspace/ZooKeeper_branch34/build/zookeeper-3.4.10-SNAPSHOT/dist-maven [copy] Copying 8 files to /home/jenkins/jenkins-slave/workspace/ZooKeeper_branch34/build/zookeeper-3.4.10-SNAPSHOT/bin [copy] Copying 3 files to /home/jenkins/jenkins-slave/workspace/ZooKeeper_branch34/build/zookeeper-3.4.10-SNAPSHOT/conf [copy] Copying 318 files to /home/jenkins/jenkins-slave/workspace/ZooKeeper_branch34/build/zookeeper-3.4.10-SNAPSHOT/docs [copy] Copied 22 empty directories to 3 empty directories under /home/jenkins/jenkins-slave/workspace/ZooKeeper_branch34/build/zookeeper-3.4.10-SNAPSHOT/docs [copy] Copying 8 files to /home/jenkins/jenkins-slave/workspace/ZooKeeper_branch34/build/zookeeper-3.4.10-SNAPSHOT [copy] Copying 918 files to /home/jenkins/jenkins-slave/workspace/ZooKeeper_branch34/build/zookeeper-3.4.10-SNAPSHOT/src [copy] Copied 238 empty directories to 1 empty directory under /home/jenkins/jenkins-slave/workspace/ZooKeeper_branch34/build/zookeeper-3.4.10-SNAPSHOT/src tar: [tar] Building tar: /home/jenkins/jenkins-slave/workspace/ZooKeeper_branch34/build/zookeeper-3.4.10-SNAPSHOT.tar.gz check-for-findbugs: findbugs: BUILD FAILED /home/jenkins/jenkins-slave/workspace/ZooKeeper_branch34/build.xml:1481: java.lang.UnsupportedClassVersionError: edu/umd/cs/findbugs/anttask/FindBugsTask : Unsupported major.minor version 51.0 at java.lang.ClassLoader.defineClass1(Native Method) at java.lang.ClassLoader.defineClassCond(ClassLoader.java:631) at java.lang.ClassLoader.defineClass(ClassLoader.java:615) at org.apache.tools.ant.AntClassLoader.defineClassFromData(AntClassLoader.java:1149) at org.apache.tools.ant.AntClassLoader.getClassFromStream(AntClassLoader.java:1320) at org.apache.tools.ant.AntClassLoader.findClassInComponents(AntClassLoader.java:1376) at org.apache.tools.ant.AntClassLoader.findClass(AntClassLoader.java:1337) at org.apache.tools.ant.AntClassLoader.loadClass(AntClassLoader.java:1089) at java.lang.ClassLoader.loadClass(ClassLoader.java:247) at java.lang.Class.forName0(Native Method) at java.lang.Class.forName(Class.java:249) at org.apache.tools.ant.taskdefs.Definer.addDefinition(Definer.java:579) at org.apache.tools.ant.taskdefs.Definer.execute(Definer.java:237) at org.apache.tools.ant.UnknownElement.execute(UnknownElement.java:293) at sun.reflect.GeneratedMethodAccessor4.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:597) at org.apache.tools.ant.dispatch.DispatchUtils.execute(DispatchUtils.java:106) at org.apache.tools.ant.Task.perform(Task.java:348) at org.apache.tools.ant.Target.execute(Target.java:435) at org.apache.tools.ant.Target.performTasks(Target.java:456) at org.apache.tools.ant.Project.executeSortedTargets(Project.java:1405) at org.apache.tools.ant.Project.executeTarget(Project.java:1376) at org.apache.tools.ant.helper.DefaultExecutor.executeTargets(DefaultExecutor.java:41) at org.apache.tools.ant.Project.executeTargets(Project.java:1260) at org.apache.tools.ant.Main.runBuild(Main.java:854) at org.apache.tools.ant.Main.startAnt(Main.java:236) at org.apache.tools.ant.launch.Launcher.run(Launcher.java:285) at org.apache.tools.ant.launch.Launcher.main(Launcher.java:112) Total time: 1 minute 3 seconds mv: cannot stat ‘build/test/findbugs’: No such file or directory Build Failed Build step 'Execute shell' marked build as failure Recording test results ERROR: Step ‘Publish JUnit test result report’ failed: No test report files were found. Configuration error? Email was triggered for: Failure - Any Sending email for trigger: Failure - Any ################################################################################### ############################## FAILED TESTS (if any) ############################## No tests ran.