Mar 23, 2018 11:35:34 PM jenkins.model.lazy.LazyBuildMixIn onLoad WARNING: JENKINS-27530: improper nextBuildNumber 0 detected in hudson.matrix.MatrixConfiguration@3afff67[SAUCELABS_JOB/SELENIUM_DRIVER=Windows_10microsoftedge14] with highest build number 0; adjusting Mar 23, 2018 11:35:34 PM jenkins.model.lazy.LazyBuildMixIn onLoad WARNING: JENKINS-27530: improper nextBuildNumber 0 detected in hudson.matrix.MatrixConfiguration@3afff67[SAUCELABS_JOB/SELENIUM_DRIVER=Windows_10microsoftedge14] with highest build number 0; adjusting Mar 23, 2018 11:35:34 PM jenkins.model.lazy.LazyBuildMixIn onLoad WARNING: JENKINS-27530: improper nextBuildNumber 0 detected in hudson.matrix.MatrixConfiguration@3afff67[SAUCELABS_JOB/SELENIUM_DRIVER=Windows_10microsoftedge14] with highest build number 0; adjusting Mar 23, 2018 11:35:34 PM jenkins.model.lazy.LazyBuildMixIn onLoad WARNING: JENKINS-27530: improper nextBuildNumber 0 detected in hudson.matrix.MatrixConfiguration@3afff67[SAUCELABS_JOB/SELENIUM_DRIVER=Windows_10microsoftedge14] with highest build number 0; adjusting Mar 23, 2018 11:35:34 PM jenkins.model.lazy.LazyBuildMixIn onLoad WARNING: JENKINS-27530: improper nextBuildNumber 0 detected in hudson.matrix.MatrixConfiguration@3afff67[SAUCELABS_JOB/SELENIUM_DRIVER=Windows_10microsoftedge14] with highest build number 0; adjusting Mar 23, 2018 11:35:34 PM jenkins.model.lazy.LazyBuildMixIn onLoad WARNING: JENKINS-27530: improper nextBuildNumber 0 detected in hudson.matrix.MatrixConfiguration@3afff67[SAUCELABS_JOB/SELENIUM_DRIVER=Windows_10microsoftedge14] with highest build number 0; adjusting Mar 23, 2018 11:42:05 PM hudson.model.Run getEnvironment WARNING: deprecated call to Run.getEnvironment at hudson.plugins.sauce_ondemand.SauceOnDemandBuildWrapper$1.tearDown(SauceOnDemandBuildWrapper.java:645) Mar 23, 2018 11:42:05 PM hudson.model.Run execute INFO: SAUCELABS_JOB/SELENIUM_DRIVER=Windows_10microsoftedge14 #1 main build action completed: SUCCESS Mar 23, 2018 11:42:05 PM hudson.model.Run execute INFO: SAUCELABS_JOB #1 main build action completed: FAILURE Mar 23, 2018 11:42:05 PM hudson.XmlFile replaceIfNotAtTopLevel WARNING: JENKINS-45892: reference to hudson.matrix.MatrixProject@263e918e[?/null] being saved from unexpected /var/lib/jenkins/jobs/SAUCELABS_JOB/builds/1/build.xml java.lang.IllegalStateException at hudson.XmlFile.replaceIfNotAtTopLevel(XmlFile.java:222) at hudson.model.AbstractItem.writeReplace(AbstractItem.java:492) 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$1.convertAnother(AbstractReferenceMarshaller.java:88) at com.thoughtworks.xstream.converters.collections.AbstractCollectionConverter.writeItem(AbstractCollectionConverter.java:64) at com.thoughtworks.xstream.converters.collections.CollectionConverter.marshal(CollectionConverter.java:74) at hudson.util.XStream2$AssociatedConverterImpl.marshal(XStream2.java:461) 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:193) at hudson.model.Run.save(Run.java:1923) at hudson.model.Run.execute(Run.java:1784) at hudson.matrix.MatrixBuild.run(MatrixBuild.java:314) at hudson.model.ResourceController.execute(ResourceController.java:97) at hudson.model.Executor.run(Executor.java:429) Mar 23, 2018 11:42:05 PM hudson.model.Run execute SEVERE: Failed to save build record java.io.IOException: java.lang.RuntimeException: Failed to serialize hudson.matrix.MatrixBuild#axes for class hudson.matrix.MatrixBuild at hudson.XmlFile.write(XmlFile.java:200) at hudson.model.Run.save(Run.java:1923) at hudson.model.Run.execute(Run.java:1784) at hudson.matrix.MatrixBuild.run(MatrixBuild.java:314) at hudson.model.ResourceController.execute(ResourceController.java:97) at hudson.model.Executor.run(Executor.java:429) Caused by: java.lang.RuntimeException: Failed to serialize hudson.matrix.MatrixBuild#axes for class hudson.matrix.MatrixBuild at hudson.util.RobustReflectionConverter$2.writeField(RobustReflectionConverter.java:256) 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:193) ... 5 more Caused by: java.lang.RuntimeException: Failed to serialize hudson.plugins.sauce_ondemand.BrowserAxis#project for class hudson.plugins.sauce_ondemand.WebDriverAxis at hudson.util.RobustReflectionConverter$2.writeField(RobustReflectionConverter.java:256) 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$1.convertAnother(AbstractReferenceMarshaller.java:88) at com.thoughtworks.xstream.converters.collections.AbstractCollectionConverter.writeItem(AbstractCollectionConverter.java:64) at com.thoughtworks.xstream.converters.collections.CollectionConverter.marshal(CollectionConverter.java:74) at hudson.util.XStream2$AssociatedConverterImpl.marshal(XStream2.java:461) 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) ... 18 more Caused by: com.thoughtworks.xstream.converters.reflection.ObjectAccessException: Could not call hudson.matrix.MatrixProject.writeReplace() : no parent set on hudson.matrix.MatrixProject[null] at com.thoughtworks.xstream.converters.reflection.SerializationMethodInvoker.callWriteReplace(SerializationMethodInvoker.java:95) 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$2.writeField(RobustReflectionConverter.java:252) ... 34 more Caused by: java.lang.IllegalStateException: no parent set on hudson.matrix.MatrixProject[null] at hudson.model.AbstractItem.getParent(AbstractItem.java:201) at hudson.model.AbstractItem.getFullName(AbstractItem.java:351) at hudson.model.AbstractItem$Replacer.(AbstractItem.java:497) at hudson.model.AbstractItem.lambda$writeReplace$0(AbstractItem.java:492) at hudson.XmlFile.replaceIfNotAtTopLevel(XmlFile.java:223) at hudson.model.AbstractItem.writeReplace(AbstractItem.java:492) 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) ... 40 more Mar 23, 2018 11:59:21 PM hudson.model.AsyncPeriodicWork$1 run INFO: Started Workspace clean-up Mar 23, 2018 11:59:21 PM hudson.model.AsyncPeriodicWork$1 run INFO: Finished Workspace clean-up. 1 ms Mar 24, 2018 12:20:47 AM hudson.model.Run getEnvironment WARNING: deprecated call to Run.getEnvironment at hudson.plugins.sauce_ondemand.SauceOnDemandBuildWrapper$1.tearDown(SauceOnDemandBuildWrapper.java:645) Mar 24, 2018 12:20:47 AM hudson.model.Run execute INFO: SAUCELABS_JOB/SELENIUM_DRIVER=Windows_10microsoftedge14 #2 main build action completed: FAILURE Mar 24, 2018 12:20:49 AM hudson.model.Run execute INFO: SAUCELABS_JOB #2 main build action completed: FAILURE Mar 24, 2018 12:20:49 AM hudson.XmlFile replaceIfNotAtTopLevel WARNING: JENKINS-45892: reference to hudson.matrix.MatrixProject@46400325[?/null] being saved from unexpected /var/lib/jenkins/jobs/SAUCELABS_JOB/builds/2/build.xml java.lang.IllegalStateException at hudson.XmlFile.replaceIfNotAtTopLevel(XmlFile.java:222) at hudson.model.AbstractItem.writeReplace(AbstractItem.java:492) 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$1.convertAnother(AbstractReferenceMarshaller.java:88) at com.thoughtworks.xstream.converters.collections.AbstractCollectionConverter.writeItem(AbstractCollectionConverter.java:64) at com.thoughtworks.xstream.converters.collections.CollectionConverter.marshal(CollectionConverter.java:74) at hudson.util.XStream2$AssociatedConverterImpl.marshal(XStream2.java:461) 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:193) at hudson.model.Run.save(Run.java:1923) at hudson.model.Run.execute(Run.java:1784) at hudson.matrix.MatrixBuild.run(MatrixBuild.java:314) at hudson.model.ResourceController.execute(ResourceController.java:97) at hudson.model.Executor.run(Executor.java:429) Mar 24, 2018 12:20:49 AM hudson.model.Run execute SEVERE: Failed to save build record java.io.IOException: java.lang.RuntimeException: Failed to serialize hudson.matrix.MatrixBuild#axes for class hudson.matrix.MatrixBuild at hudson.XmlFile.write(XmlFile.java:200) at hudson.model.Run.save(Run.java:1923) at hudson.model.Run.execute(Run.java:1784) at hudson.matrix.MatrixBuild.run(MatrixBuild.java:314) at hudson.model.ResourceController.execute(ResourceController.java:97) at hudson.model.Executor.run(Executor.java:429) Caused by: java.lang.RuntimeException: Failed to serialize hudson.matrix.MatrixBuild#axes for class hudson.matrix.MatrixBuild at hudson.util.RobustReflectionConverter$2.writeField(RobustReflectionConverter.java:256) 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:193) ... 5 more Caused by: java.lang.RuntimeException: Failed to serialize hudson.plugins.sauce_ondemand.BrowserAxis#project for class hudson.plugins.sauce_ondemand.WebDriverAxis at hudson.util.RobustReflectionConverter$2.writeField(RobustReflectionConverter.java:256) 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$1.convertAnother(AbstractReferenceMarshaller.java:88) at com.thoughtworks.xstream.converters.collections.AbstractCollectionConverter.writeItem(AbstractCollectionConverter.java:64) at com.thoughtworks.xstream.converters.collections.CollectionConverter.marshal(CollectionConverter.java:74) at hudson.util.XStream2$AssociatedConverterImpl.marshal(XStream2.java:461) 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) ... 18 more Caused by: com.thoughtworks.xstream.converters.reflection.ObjectAccessException: Could not call hudson.matrix.MatrixProject.writeReplace() : no parent set on hudson.matrix.MatrixProject[null] at com.thoughtworks.xstream.converters.reflection.SerializationMethodInvoker.callWriteReplace(SerializationMethodInvoker.java:95) 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$2.writeField(RobustReflectionConverter.java:252) ... 34 more Caused by: java.lang.IllegalStateException: no parent set on hudson.matrix.MatrixProject[null] at hudson.model.AbstractItem.getParent(AbstractItem.java:201) at hudson.model.AbstractItem.getFullName(AbstractItem.java:351) at hudson.model.AbstractItem$Replacer.(AbstractItem.java:497) at hudson.model.AbstractItem.lambda$writeReplace$0(AbstractItem.java:492) at hudson.XmlFile.replaceIfNotAtTopLevel(XmlFile.java:223) at hudson.model.AbstractItem.writeReplace(AbstractItem.java:492) 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) ... 40 more