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  1. Jenkins
  2. JENKINS-49328

MultiJob has a forbidden nested reference to a model object

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    • Icon: Bug Bug
    • Resolution: Fixed
    • Icon: Critical Critical
    • multijob-plugin
    • None
    • multijob:1.28
      core:2.89.3

      When running a simple, the Jenkins logs show the following WARNINGS:

      Feb 02, 2018 9:47:26 AM hudson.XmlFile replaceIfNotAtTopLevel
      WARNING: JENKINS-45892: reference to job1 #2 being saved from unexpected /tmp/Jenkins/jobs/testSimpleMutliJob/builds/2/build.xml
      java.lang.IllegalStateException
      	at hudson.XmlFile.replaceIfNotAtTopLevel(XmlFile.java:210)
      	at hudson.model.Run.writeReplace(Run.java:1929)
      	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
      	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
      	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.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 hudson.model.Run.execute(Run.java:1781)
      	at com.tikal.jenkins.plugins.multijob.MultiJobBuild.run(MultiJobBuild.java:73)
      	at hudson.model.ResourceController.execute(ResourceController.java:97)
      	at hudson.model.Executor.run(Executor.java:421)
      

      How to Reproduce

      • Create a simple job that does nothing
      • Create a simple MultiJob project with one phase, which contains the reference to the job, see multijob-config.png
      • Build the MultiJob

      You will see the stacktrace appearing several times (3 times), see logs-after-build.log

      Impact

      This is critical as when many jobs run at the same time, it is polluting at such extent that it slow down the Jenkins server and make it unresponsive.

        1. logs-after-build.log
          13 kB
          Allan BURDAJEWICZ
        2. multijob-config.png
          48 kB
          Allan BURDAJEWICZ

            jglick Jesse Glick
            allan_burdajewicz Allan BURDAJEWICZ
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              Created:
              Updated:
              Resolved: