Nov 29, 2017 6:58:52 PM hudson.XmlFile replaceIfNotAtTopLevel
WARNING: JENKINS-45892: reference to org.jenkinsci.plugins.workflow.job.WorkflowJob@488f6bf6[myjob/mybranch] being saved from unexpected /var/jenkins_home/jobs/myjob/branches/mybranch.njvm0k/builds/7/build.xml
java.lang.IllegalStateException
        at hudson.XmlFile.replaceIfNotAtTopLevel(XmlFile.java:210)
        at hudson.model.AbstractItem.writeReplace(AbstractItem.java:509)
        at sun.reflect.GeneratedMethodAccessor243.invoke(Unknown Source)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
        at java.lang.reflect.Method.invoke(Method.java:498)
        at com.thoughtworks.xstream.converters.reflection.SerializationMethodInvoker.callWriteReplace(SerializationMethodInvoker.java:89)
        at hudson.util.RobustReflectionConverter.marshal(RobustReflectionConverter.java:141)
        at com.thoughtworks.xstream.core.AbstractReferenceMarshaller.convert(AbstractReferenceMarshaller.java:69)
        at com.thoughtworks.xstream.core.TreeMarshaller.convertAnother(TreeMarshaller.java:58)
        at com.thoughtworks.xstream.core.AbstractReferenceMarshaller$1.convertAnother(AbstractReferenceMarshaller.java:84)
        at hudson.util.RobustReflectionConverter.marshallField(RobustReflectionConverter.java:265)
        at hudson.util.RobustReflectionConverter$2.writeField(RobustReflectionConverter.java:252)
        at hudson.util.RobustReflectionConverter$2.visit(RobustReflectionConverter.java:224)
        at com.thoughtworks.xstream.converters.reflection.PureJavaReflectionProvider.visitSerializableFields(PureJavaReflectionProvider.java:138)
        at hudson.util.RobustReflectionConverter.doMarshal(RobustReflectionConverter.java:209)
        at hudson.util.RobustReflectionConverter.marshal(RobustReflectionConverter.java:150)
        at com.thoughtworks.xstream.core.AbstractReferenceMarshaller.convert(AbstractReferenceMarshaller.java:69)
        at com.thoughtworks.xstream.core.TreeMarshaller.convertAnother(TreeMarshaller.java:58)
        at com.thoughtworks.xstream.core.AbstractReferenceMarshaller$1.convertAnother(AbstractReferenceMarshaller.java:84)
        at hudson.util.RobustReflectionConverter.marshallField(RobustReflectionConverter.java:265)
        at hudson.util.RobustReflectionConverter$2.writeField(RobustReflectionConverter.java:252)
        at hudson.util.RobustReflectionConverter$2.visit(RobustReflectionConverter.java:224)
        at com.thoughtworks.xstream.converters.reflection.PureJavaReflectionProvider.visitSerializableFields(PureJavaReflectionProvider.java:138)
        at hudson.util.RobustReflectionConverter.doMarshal(RobustReflectionConverter.java:209)
        at hudson.util.RobustReflectionConverter.marshal(RobustReflectionConverter.java:150)
        at com.thoughtworks.xstream.core.AbstractReferenceMarshaller.convert(AbstractReferenceMarshaller.java:69)
        at com.thoughtworks.xstream.core.TreeMarshaller.convertAnother(TreeMarshaller.java:58)
        at com.thoughtworks.xstream.core.AbstractReferenceMarshaller$1.convertAnother(AbstractReferenceMarshaller.java:84)
        at hudson.util.RobustReflectionConverter.marshallField(RobustReflectionConverter.java:265)
        at hudson.util.RobustReflectionConverter$2.writeField(RobustReflectionConverter.java:252)
        at hudson.util.RobustReflectionConverter$2.visit(RobustReflectionConverter.java:224)
        at com.thoughtworks.xstream.converters.reflection.PureJavaReflectionProvider.visitSerializableFields(PureJavaReflectionProvider.java:138)
        at hudson.util.RobustReflectionConverter.doMarshal(RobustReflectionConverter.java:209)
        at hudson.util.RobustReflectionConverter.marshal(RobustReflectionConverter.java:150)
        at com.thoughtworks.xstream.core.AbstractReferenceMarshaller.convert(AbstractReferenceMarshaller.java:69)
        at com.thoughtworks.xstream.core.TreeMarshaller.convertAnother(TreeMarshaller.java:58)
        at com.thoughtworks.xstream.core.TreeMarshaller.convertAnother(TreeMarshaller.java:43)
        at com.thoughtworks.xstream.core.AbstractReferenceMarshaller$1.convertAnother(AbstractReferenceMarshaller.java:88)
        at com.thoughtworks.xstream.converters.collections.AbstractCollectionConverter.writeItem(AbstractCollectionConverter.java:64)
        at com.thoughtworks.xstream.converters.collections.CollectionConverter.marshal(CollectionConverter.java:74)
        at com.thoughtworks.xstream.core.AbstractReferenceMarshaller.convert(AbstractReferenceMarshaller.java:69)
        at com.thoughtworks.xstream.core.TreeMarshaller.convertAnother(TreeMarshaller.java:58)
        at com.thoughtworks.xstream.core.AbstractReferenceMarshaller$1.convertAnother(AbstractReferenceMarshaller.java:84)
        at hudson.util.RobustReflectionConverter.marshallField(RobustReflectionConverter.java:265)
        at hudson.util.RobustReflectionConverter$2.writeField(RobustReflectionConverter.java:252)
        at hudson.util.RobustReflectionConverter$2.visit(RobustReflectionConverter.java:224)
        at com.thoughtworks.xstream.converters.reflection.PureJavaReflectionProvider.visitSerializableFields(PureJavaReflectionProvider.java:138)
        at hudson.util.RobustReflectionConverter.doMarshal(RobustReflectionConverter.java:209)
        at hudson.util.RobustReflectionConverter.marshal(RobustReflectionConverter.java:150)
        at com.thoughtworks.xstream.core.AbstractReferenceMarshaller.convert(AbstractReferenceMarshaller.java:69)
        at com.thoughtworks.xstream.core.TreeMarshaller.convertAnother(TreeMarshaller.java:58)
        at com.thoughtworks.xstream.core.TreeMarshaller.convertAnother(TreeMarshaller.java:43)
        at com.thoughtworks.xstream.core.TreeMarshaller.start(TreeMarshaller.java:82)
        at com.thoughtworks.xstream.core.AbstractTreeMarshallingStrategy.marshal(AbstractTreeMarshallingStrategy.java:37)
        at com.thoughtworks.xstream.XStream.marshal(XStream.java:1026)
        at com.thoughtworks.xstream.XStream.marshal(XStream.java:1015)
        at com.thoughtworks.xstream.XStream.toXML(XStream.java:988)
        at hudson.XmlFile.write(XmlFile.java:181)
        at hudson.model.Run.save(Run.java:1920)
        at org.jenkinsci.plugins.workflow.job.WorkflowRun.copyLogs(WorkflowRun.java:527)
        at org.jenkinsci.plugins.workflow.job.WorkflowRun.access$600(WorkflowRun.java:135)
        at org.jenkinsci.plugins.workflow.job.WorkflowRun$3.run(WorkflowRun.java:350)
        at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
        at java.util.concurrent.FutureTask.runAndReset(FutureTask.java:308)
        at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(ScheduledThreadPoolExecutor.java:180)
        at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:294)
        at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
        at java.lang.Thread.run(Thread.java:745)