Exception in thread "main" java.lang.ClassNotFoundException: hudson.remoting.Launcher 15:50:38 at org.codehaus.plexus.classworlds.strategy.SelfFirstStrategy.loadClass(SelfFirstStrategy.java:50) 15:50:38 at org.codehaus.plexus.classworlds.realm.ClassRealm.unsynchronizedLoadClass(ClassRealm.java:271) 15:50:38 at org.codehaus.plexus.classworlds.realm.ClassRealm.loadClass(ClassRealm.java:247) 15:50:38 at org.codehaus.plexus.classworlds.realm.ClassRealm.loadClass(ClassRealm.java:239) 15:50:38 at jenkins.maven3.agent.Maven32Main.main(Maven32Main.java:143) 15:50:38 at jenkins.maven3.agent.Maven32Main.main(Maven32Main.java:74) 15:50:38 ERROR: Failed to parse POMs 15:50:38 java.io.EOFException: unexpected stream termination 15:50:38 at hudson.remoting.ChannelBuilder.negotiate(ChannelBuilder.java:365) 15:50:38 at hudson.remoting.ChannelBuilder.build(ChannelBuilder.java:310) 15:50:38 at hudson.slaves.Channels.forProcess(Channels.java:115) 15:50:38 at hudson.maven.AbstractMavenProcessFactory.newProcess(AbstractMavenProcessFactory.java:297) 15:50:38 at hudson.maven.ProcessCache.get(ProcessCache.java:236) 15:50:38 at hudson.maven.MavenModuleSetBuild$MavenModuleSetBuildExecution.doRun(MavenModuleSetBuild.java:778) 15:50:38 at hudson.model.AbstractBuild$AbstractBuildExecution.run(AbstractBuild.java:534) 15:50:38 at hudson.model.Run.execute(Run.java:1738) 15:50:38 at hudson.maven.MavenModuleSetBuild.run(MavenModuleSetBuild.java:531) 15:50:38 at hudson.model.ResourceController.execute(ResourceController.java:98) 15:50:38 at hudson.model.Executor.run(Executor.java:410) Error appear after this line:java -Xms512m -Xmx4096m -XX:+UseConcMarkSweepGC -cp /jphome/jp/ccjp/mb_ccjp/maven32-agent.jar:/amdocs/external/maven-3.3.9/boot/plexus-classworlds-2.5.2.jar:/amdocs/external/maven-3.3.9/conf/logging jenkins.maven3.agent.Maven32Main /amdocs/external/maven-3.3.9 /jphome/jp/ccjp/mb_ccjp/slave.jar /jphome/jp/ccjp/mb_ccjp/maven32-interceptor.jar /jphome/jp/ccjp/mb_ccjp/maven3-interceptor-commons.jar 57547 After Node relaunched, issue is solved bit is there any permanent solution for this? Do you know what is a root cause for this?