I found this in the last stages of our build:
ERROR: Processing failed due to a bug in the code. Please report this to jenkinsci-us...@googlegroups.comjava.lang.NullPointerException <http://stacktrace.jenkins-ci.org/search?query=java.lang.NullPointerException>: no such build node: at hudson.tasks.CommandInterpreter.perform(CommandInterpreter.java:68) <http://stacktrace.jenkins-ci.org/search/?query=hudson.tasks.CommandInterpreter.perform&entity=method> at hudson.tasks.CommandInterpreter.perform(CommandInterpreter.java:60) <http://stacktrace.jenkins-ci.org/search/?query=hudson.tasks.CommandInterpreter.perform&entity=method> at hudson.tasks.BuildStepMonitor$1.perform(BuildStepMonitor.java:19) <http://stacktrace.jenkins-ci.org/search/?query=hudson.tasks.BuildStepMonitor$1.perform&entity=method> at hudson.model.AbstractBuild$AbstractBuildExecution.perform(AbstractBuild.java:804) <http://stacktrace.jenkins-ci.org/search/?query=hudson.model.AbstractBuild$AbstractBuildExecution.perform&entity=method> at hudson.maven.MavenModuleSetBuild$MavenModuleSetBuildExecution.build(MavenModuleSetBuild.java:818) <http://stacktrace.jenkins-ci.org/search/?query=hudson.maven.MavenModuleSetBuild$MavenModuleSetBuildExecution.build&entity=method> at hudson.maven.MavenModuleSetBuild$MavenModuleSetBuildExecution.doRun(MavenModuleSetBuild.java:769) <http://stacktrace.jenkins-ci.org/search/?query=hudson.maven.MavenModuleSetBuild$MavenModuleSetBuildExecution.doRun&entity=method> at hudson.model.AbstractBuild$AbstractBuildExecution.run(AbstractBuild.java:586) <http://stacktrace.jenkins-ci.org/search/?query=hudson.model.AbstractBuild$AbstractBuildExecution.run&entity=method> at hudson.model.Run.execute(Run.java:1543) <http://stacktrace.jenkins-ci.org/search/?query=hudson.model.Run.execute&entity=method> at hudson.maven.MavenModuleSetBuild.run(MavenModuleSetBuild.java:477) <http://stacktrace.jenkins-ci.org/search/?query=hudson.maven.MavenModuleSetBuild.run&entity=method> at hudson.model.ResourceController.execute(ResourceController.java:88) <http://stacktrace.jenkins-ci.org/search/?query=hudson.model.ResourceController.execute&entity=method> at hudson.model.Executor.run(Executor.java:236) <http://stacktrace.jenkins-ci.org/search/?query=hudson.model.Executor.run&entity=method> I hope it helps...