HTTP Status 500 - ------------------------------------------------------------------------ *type* Exception report *message* __ *description* _The server encountered an internal error () that prevented it from fulfilling this request._ *exception* javax.servlet.ServletException: Failed to serialize hudson.model.Hudson#views for class hudson.model.Hudson org.kohsuke.stapler.Stapler.invoke(Stapler.java:535) org.kohsuke.stapler.Stapler.invoke(Stapler.java:416) org.kohsuke.stapler.Stapler.service(Stapler.java:122) javax.servlet.http.HttpServlet.service(HttpServlet.java:803) hudson.util.PluginServletFilter$1.doFilter(PluginServletFilter.java:94) hudson.util.PluginServletFilter.doFilter(PluginServletFilter.java:86) hudson.security.csrf.CrumbFilter.doFilter(CrumbFilter.java:47) hudson.security.ChainedServletFilter$1.doFilter(ChainedServletFilter.java:84) hudson.security.UnwrapSecurityExceptionFilter.doFilter(UnwrapSecurityExceptionFilter.java:51) hudson.security.ChainedServletFilter$1.doFilter(ChainedServletFilter.java:87) org.acegisecurity.ui.ExceptionTranslationFilter.doFilter(ExceptionTranslationFilter.java:166) hudson.security.ChainedServletFilter$1.doFilter(ChainedServletFilter.java:87) org.acegisecurity.providers.anonymous.AnonymousProcessingFilter.doFilter(AnonymousProcessingFilter.java:125) hudson.security.ChainedServletFilter$1.doFilter(ChainedServletFilter.java:87) org.acegisecurity.ui.rememberme.RememberMeProcessingFilter.doFilter(RememberMeProcessingFilter.java:142) hudson.security.ChainedServletFilter$1.doFilter(ChainedServletFilter.java:87) org.acegisecurity.ui.AbstractProcessingFilter.doFilter(AbstractProcessingFilter.java:271) hudson.security.ChainedServletFilter$1.doFilter(ChainedServletFilter.java:87) org.acegisecurity.ui.basicauth.BasicProcessingFilter.doFilter(BasicProcessingFilter.java:173) hudson.security.ChainedServletFilter$1.doFilter(ChainedServletFilter.java:87) org.acegisecurity.context.HttpSessionContextIntegrationFilter.doFilter(HttpSessionContextIntegrationFilter.java:249) hudson.security.HttpSessionContextIntegrationFilter2.doFilter(HttpSessionContextIntegrationFilter2.java:66) hudson.security.ChainedServletFilter$1.doFilter(ChainedServletFilter.java:87) hudson.security.ChainedServletFilter.doFilter(ChainedServletFilter.java:76) hudson.security.HudsonFilter.doFilter(HudsonFilter.java:164) *root cause* java.lang.RuntimeException: Failed to serialize hudson.model.Hudson#views for class hudson.model.Hudson hudson.util.RobustReflectionConverter$2.writeField(RobustReflectionConverter.java:159) hudson.util.RobustReflectionConverter$2.visit(RobustReflectionConverter.java:130) com.thoughtworks.xstream.converters.reflection.PureJavaReflectionProvider.visitSerializableFields(PureJavaReflectionProvider.java:130) hudson.util.RobustReflectionConverter.doMarshal(RobustReflectionConverter.java:115) hudson.util.RobustReflectionConverter.marshal(RobustReflectionConverter.java:89) com.thoughtworks.xstream.core.AbstractReferenceMarshaller.convert(AbstractReferenceMarshaller.java:68) com.thoughtworks.xstream.core.TreeMarshaller.convertAnother(TreeMarshaller.java:78) com.thoughtworks.xstream.core.TreeMarshaller.convertAnother(TreeMarshaller.java:63) com.thoughtworks.xstream.core.TreeMarshaller.start(TreeMarshaller.java:98) com.thoughtworks.xstream.core.AbstractTreeMarshallingStrategy.marshal(AbstractTreeMarshallingStrategy.java:38) com.thoughtworks.xstream.XStream.marshal(XStream.java:837) com.thoughtworks.xstream.XStream.marshal(XStream.java:826) com.thoughtworks.xstream.XStream.toXML(XStream.java:801) hudson.XmlFile.write(XmlFile.java:165) hudson.model.Hudson.save(Hudson.java:2175) hudson.BulkChange.commit(BulkChange.java:113) hudson.model.Hudson.doConfigSubmit(Hudson.java:2377) sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) java.lang.reflect.Method.invoke(Method.java:597) org.kohsuke.stapler.Function$InstanceFunction.invoke(Function.java:185) org.kohsuke.stapler.Function.bindAndInvoke(Function.java:101) org.kohsuke.stapler.Function.bindAndInvokeAndServeResponse(Function.java:54) org.kohsuke.stapler.MetaClass$1.doDispatch(MetaClass.java:74) org.kohsuke.stapler.NameBasedDispatcher.dispatch(NameBasedDispatcher.java:30) org.kohsuke.stapler.Stapler.invoke(Stapler.java:500) org.kohsuke.stapler.Stapler.invoke(Stapler.java:416) org.kohsuke.stapler.Stapler.service(Stapler.java:122) javax.servlet.http.HttpServlet.service(HttpServlet.java:803) hudson.util.PluginServletFilter$1.doFilter(PluginServletFilter.java:94) hudson.util.PluginServletFilter.doFilter(PluginServletFilter.java:86) hudson.security.csrf.CrumbFilter.doFilter(CrumbFilter.java:47) hudson.security.ChainedServletFilter$1.doFilter(ChainedServletFilter.java:84) hudson.security.UnwrapSecurityExceptionFilter.doFilter(UnwrapSecurityExceptionFilter.java:51) hudson.security.ChainedServletFilter$1.doFilter(ChainedServletFilter.java:87) org.acegisecurity.ui.ExceptionTranslationFilter.doFilter(ExceptionTranslationFilter.java:166) hudson.security.ChainedServletFilter$1.doFilter(ChainedServletFilter.java:87) org.acegisecurity.providers.anonymous.AnonymousProcessingFilter.doFilter(AnonymousProcessingFilter.java:125) hudson.security.ChainedServletFilter$1.doFilter(ChainedServletFilter.java:87) org.acegisecurity.ui.rememberme.RememberMeProcessingFilter.doFilter(RememberMeProcessingFilter.java:142) hudson.security.ChainedServletFilter$1.doFilter(ChainedServletFilter.java:87) org.acegisecurity.ui.AbstractProcessingFilter.doFilter(AbstractProcessingFilter.java:271) hudson.security.ChainedServletFilter$1.doFilter(ChainedServletFilter.java:87) org.acegisecurity.ui.basicauth.BasicProcessingFilter.doFilter(BasicProcessingFilter.java:173) hudson.security.ChainedServletFilter$1.doFilter(ChainedServletFilter.java:87) org.acegisecurity.context.HttpSessionContextIntegrationFilter.doFilter(HttpSessionContextIntegrationFilter.java:249) hudson.security.HttpSessionContextIntegrationFilter2.doFilter(HttpSessionContextIntegrationFilter2.java:66) hudson.security.ChainedServletFilter$1.doFilter(ChainedServletFilter.java:87) hudson.security.ChainedServletFilter.doFilter(ChainedServletFilter.java:76) hudson.security.HudsonFilter.doFilter(HudsonFilter.java:164) *root cause* java.lang.RuntimeException: Failed to serialize maps.hudson.plugin.xfpanel.XFPanelView#placeInQueue for class maps.hudson.plugin.xfpanel.XFPanelView hudson.util.RobustReflectionConverter$2.writeField(RobustReflectionConverter.java:159) hudson.util.RobustReflectionConverter$2.visit(RobustReflectionConverter.java:130) com.thoughtworks.xstream.converters.reflection.PureJavaReflectionProvider.visitSerializableFields(PureJavaReflectionProvider.java:130) hudson.util.RobustReflectionConverter.doMarshal(RobustReflectionConverter.java:115) hudson.util.RobustReflectionConverter.marshal(RobustReflectionConverter.java:89) com.thoughtworks.xstream.core.AbstractReferenceMarshaller.convert(AbstractReferenceMarshaller.java:68) com.thoughtworks.xstream.core.TreeMarshaller.convertAnother(TreeMarshaller.java:78) com.thoughtworks.xstream.core.TreeMarshaller.convertAnother(TreeMarshaller.java:63) com.thoughtworks.xstream.converters.collections.AbstractCollectionConverter.writeItem(AbstractCollectionConverter.java:64) com.thoughtworks.xstream.converters.collections.CollectionConverter.marshal(CollectionConverter.java:55) com.thoughtworks.xstream.core.AbstractReferenceMarshaller.convert(AbstractReferenceMarshaller.java:68) com.thoughtworks.xstream.core.TreeMarshaller.convertAnother(TreeMarshaller.java:78) com.thoughtworks.xstream.core.TreeMarshaller.convertAnother(TreeMarshaller.java:63) hudson.util.RobustReflectionConverter.marshallField(RobustReflectionConverter.java:167) hudson.util.RobustReflectionConverter$2.writeField(RobustReflectionConverter.java:155) hudson.util.RobustReflectionConverter$2.visit(RobustReflectionConverter.java:130) com.thoughtworks.xstream.converters.reflection.PureJavaReflectionProvider.visitSerializableFields(PureJavaReflectionProvider.java:130) hudson.util.RobustReflectionConverter.doMarshal(RobustReflectionConverter.java:115) hudson.util.RobustReflectionConverter.marshal(RobustReflectionConverter.java:89) com.thoughtworks.xstream.core.AbstractReferenceMarshaller.convert(AbstractReferenceMarshaller.java:68) com.thoughtworks.xstream.core.TreeMarshaller.convertAnother(TreeMarshaller.java:78) com.thoughtworks.xstream.core.TreeMarshaller.convertAnother(TreeMarshaller.java:63) com.thoughtworks.xstream.core.TreeMarshaller.start(TreeMarshaller.java:98) com.thoughtworks.xstream.core.AbstractTreeMarshallingStrategy.marshal(AbstractTreeMarshallingStrategy.java:38) com.thoughtworks.xstream.XStream.marshal(XStream.java:837) com.thoughtworks.xstream.XStream.marshal(XStream.java:826) com.thoughtworks.xstream.XStream.toXML(XStream.java:801) hudson.XmlFile.write(XmlFile.java:165) hudson.model.Hudson.save(Hudson.java:2175) hudson.BulkChange.commit(BulkChange.java:113) hudson.model.Hudson.doConfigSubmit(Hudson.java:2377) sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) java.lang.reflect.Method.invoke(Method.java:597) org.kohsuke.stapler.Function$InstanceFunction.invoke(Function.java:185) org.kohsuke.stapler.Function.bindAndInvoke(Function.java:101) org.kohsuke.stapler.Function.bindAndInvokeAndServeResponse(Function.java:54) org.kohsuke.stapler.MetaClass$1.doDispatch(MetaClass.java:74) org.kohsuke.stapler.NameBasedDispatcher.dispatch(NameBasedDispatcher.java:30) org.kohsuke.stapler.Stapler.invoke(Stapler.java:500) org.kohsuke.stapler.Stapler.invoke(Stapler.java:416) org.kohsuke.stapler.Stapler.service(Stapler.java:122) javax.servlet.http.HttpServlet.service(HttpServlet.java:803) hudson.util.PluginServletFilter$1.doFilter(PluginServletFilter.java:94) hudson.util.PluginServletFilter.doFilter(PluginServletFilter.java:86) hudson.security.csrf.CrumbFilter.doFilter(CrumbFilter.java:47) hudson.security.ChainedServletFilter$1.doFilter(ChainedServletFilter.java:84) hudson.security.UnwrapSecurityExceptionFilter.doFilter(UnwrapSecurityExceptionFilter.java:51) hudson.security.ChainedServletFilter$1.doFilter(ChainedServletFilter.java:87) org.acegisecurity.ui.ExceptionTranslationFilter.doFilter(ExceptionTranslationFilter.java:166) hudson.security.ChainedServletFilter$1.doFilter(ChainedServletFilter.java:87) org.acegisecurity.providers.anonymous.AnonymousProcessingFilter.doFilter(AnonymousProcessingFilter.java:125) hudson.security.ChainedServletFilter$1.doFilter(ChainedServletFilter.java:87) org.acegisecurity.ui.rememberme.RememberMeProcessingFilter.doFilter(RememberMeProcessingFilter.java:142) hudson.security.ChainedServletFilter$1.doFilter(ChainedServletFilter.java:87) org.acegisecurity.ui.AbstractProcessingFilter.doFilter(AbstractProcessingFilter.java:271) hudson.security.ChainedServletFilter$1.doFilter(ChainedServletFilter.java:87) org.acegisecurity.ui.basicauth.BasicProcessingFilter.doFilter(BasicProcessingFilter.java:173) hudson.security.ChainedServletFilter$1.doFilter(ChainedServletFilter.java:87) org.acegisecurity.context.HttpSessionContextIntegrationFilter.doFilter(HttpSessionContextIntegrationFilter.java:249) hudson.security.HttpSessionContextIntegrationFilter2.doFilter(HttpSessionContextIntegrationFilter2.java:66) hudson.security.ChainedServletFilter$1.doFilter(ChainedServletFilter.java:87) hudson.security.ChainedServletFilter.doFilter(ChainedServletFilter.java:76) hudson.security.HudsonFilter.doFilter(HudsonFilter.java:164) *root cause* java.lang.RuntimeException: Failed to serialize hudson.model.Queue$BlockedItem#this$0 for class hudson.model.Queue$BlockedItem hudson.util.RobustReflectionConverter$2.writeField(RobustReflectionConverter.java:159) hudson.util.RobustReflectionConverter$2.visit(RobustReflectionConverter.java:130) com.thoughtworks.xstream.converters.reflection.PureJavaReflectionProvider.visitSerializableFields(PureJavaReflectionProvider.java:130) hudson.util.RobustReflectionConverter.doMarshal(RobustReflectionConverter.java:115) hudson.util.RobustReflectionConverter.marshal(RobustReflectionConverter.java:89) com.thoughtworks.xstream.core.AbstractReferenceMarshaller.convert(AbstractReferenceMarshaller.java:68) com.thoughtworks.xstream.core.TreeMarshaller.convertAnother(TreeMarshaller.java:78) com.thoughtworks.xstream.core.TreeMarshaller.convertAnother(TreeMarshaller.java:63) com.thoughtworks.xstream.converters.collections.AbstractCollectionConverter.writeItem(AbstractCollectionConverter.java:64) com.thoughtworks.xstream.converters.collections.MapConverter.marshal(MapConverter.java:57) com.thoughtworks.xstream.core.AbstractReferenceMarshaller.convert(AbstractReferenceMarshaller.java:68) com.thoughtworks.xstream.core.TreeMarshaller.convertAnother(TreeMarshaller.java:78) com.thoughtworks.xstream.core.TreeMarshaller.convertAnother(TreeMarshaller.java:63) hudson.util.RobustReflectionConverter.marshallField(RobustReflectionConverter.java:167) hudson.util.RobustReflectionConverter$2.writeField(RobustReflectionConverter.java:155) hudson.util.RobustReflectionConverter$2.visit(RobustReflectionConverter.java:130) com.thoughtworks.xstream.converters.reflection.PureJavaReflectionProvider.visitSerializableFields(PureJavaReflectionProvider.java:130) hudson.util.RobustReflectionConverter.doMarshal(RobustReflectionConverter.java:115) hudson.util.RobustReflectionConverter.marshal(RobustReflectionConverter.java:89) com.thoughtworks.xstream.core.AbstractReferenceMarshaller.convert(AbstractReferenceMarshaller.java:68) com.thoughtworks.xstream.core.TreeMarshaller.convertAnother(TreeMarshaller.java:78) com.thoughtworks.xstream.core.TreeMarshaller.convertAnother(TreeMarshaller.java:63) com.thoughtworks.xstream.converters.collections.AbstractCollectionConverter.writeItem(AbstractCollectionConverter.java:64) com.thoughtworks.xstream.converters.collections.CollectionConverter.marshal(CollectionConverter.java:55) com.thoughtworks.xstream.core.AbstractReferenceMarshaller.convert(AbstractReferenceMarshaller.java:68) com.thoughtworks.xstream.core.TreeMarshaller.convertAnother(TreeMarshaller.java:78) com.thoughtworks.xstream.core.TreeMarshaller.convertAnother(TreeMarshaller.java:63) hudson.util.RobustReflectionConverter.marshallField(RobustReflectionConverter.java:167) hudson.util.RobustReflectionConverter$2.writeField(RobustReflectionConverter.java:155) hudson.util.RobustReflectionConverter$2.visit(RobustReflectionConverter.java:130) com.thoughtworks.xstream.converters.reflection.PureJavaReflectionProvider.visitSerializableFields(PureJavaReflectionProvider.java:130) hudson.util.RobustReflectionConverter.doMarshal(RobustReflectionConverter.java:115) hudson.util.RobustReflectionConverter.marshal(RobustReflectionConverter.java:89) com.thoughtworks.xstream.core.AbstractReferenceMarshaller.convert(AbstractReferenceMarshaller.java:68) com.thoughtworks.xstream.core.TreeMarshaller.convertAnother(TreeMarshaller.java:78) com.thoughtworks.xstream.core.TreeMarshaller.convertAnother(TreeMarshaller.java:63) com.thoughtworks.xstream.core.TreeMarshaller.start(TreeMarshaller.java:98) com.thoughtworks.xstream.core.AbstractTreeMarshallingStrategy.marshal(AbstractTreeMarshallingStrategy.java:38) com.thoughtworks.xstream.XStream.marshal(XStream.java:837) com.thoughtworks.xstream.XStream.marshal(XStream.java:826) com.thoughtworks.xstream.XStream.toXML(XStream.java:801) hudson.XmlFile.write(XmlFile.java:165) hudson.model.Hudson.save(Hudson.java:2175) hudson.BulkChange.commit(BulkChange.java:113) hudson.model.Hudson.doConfigSubmit(Hudson.java:2377) sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) java.lang.reflect.Method.invoke(Method.java:597) org.kohsuke.stapler.Function$InstanceFunction.invoke(Function.java:185) org.kohsuke.stapler.Function.bindAndInvoke(Function.java:101) org.kohsuke.stapler.Function.bindAndInvokeAndServeResponse(Function.java:54) org.kohsuke.stapler.MetaClass$1.doDispatch(MetaClass.java:74) org.kohsuke.stapler.NameBasedDispatcher.dispatch(NameBasedDispatcher.java:30) org.kohsuke.stapler.Stapler.invoke(Stapler.java:500) org.kohsuke.stapler.Stapler.invoke(Stapler.java:416) org.kohsuke.stapler.Stapler.service(Stapler.java:122) javax.servlet.http.HttpServlet.service(HttpServlet.java:803) hudson.util.PluginServletFilter$1.doFilter(PluginServletFilter.java:94) hudson.util.PluginServletFilter.doFilter(PluginServletFilter.java:86) hudson.security.csrf.CrumbFilter.doFilter(CrumbFilter.java:47) hudson.security.ChainedServletFilter$1.doFilter(ChainedServletFilter.java:84) hudson.security.UnwrapSecurityExceptionFilter.doFilter(UnwrapSecurityExceptionFilter.java:51) hudson.security.ChainedServletFilter$1.doFilter(ChainedServletFilter.java:87) org.acegisecurity.ui.ExceptionTranslationFilter.doFilter(ExceptionTranslationFilter.java:166) hudson.security.ChainedServletFilter$1.doFilter(ChainedServletFilter.java:87) org.acegisecurity.providers.anonymous.AnonymousProcessingFilter.doFilter(AnonymousProcessingFilter.java:125) hudson.security.ChainedServletFilter$1.doFilter(ChainedServletFilter.java:87) org.acegisecurity.ui.rememberme.RememberMeProcessingFilter.doFilter(RememberMeProcessingFilter.java:142) hudson.security.ChainedServletFilter$1.doFilter(ChainedServletFilter.java:87) org.acegisecurity.ui.AbstractProcessingFilter.doFilter(AbstractProcessingFilter.java:271) hudson.security.ChainedServletFilter$1.doFilter(ChainedServletFilter.java:87) org.acegisecurity.ui.basicauth.BasicProcessingFilter.doFilter(BasicProcessingFilter.java:173) hudson.security.ChainedServletFilter$1.doFilter(ChainedServletFilter.java:87) org.acegisecurity.context.HttpSessionContextIntegrationFilter.doFilter(HttpSessionContextIntegrationFilter.java:249) hudson.security.HttpSessionContextIntegrationFilter2.doFilter(HttpSessionContextIntegrationFilter2.java:66) hudson.security.ChainedServletFilter$1.doFilter(ChainedServletFilter.java:87) hudson.security.ChainedServletFilter.doFilter(ChainedServletFilter.java:76) hudson.security.HudsonFilter.doFilter(HudsonFilter.java:164) *root cause* java.lang.RuntimeException: Failed to serialize hudson.model.Queue#parked for class hudson.model.Queue hudson.util.RobustReflectionConverter$2.writeField(RobustReflectionConverter.java:159) hudson.util.RobustReflectionConverter$2.visit(RobustReflectionConverter.java:130) com.thoughtworks.xstream.converters.reflection.PureJavaReflectionProvider.visitSerializableFields(PureJavaReflectionProvider.java:130) hudson.util.RobustReflectionConverter.doMarshal(RobustReflectionConverter.java:115) hudson.util.RobustReflectionConverter.marshal(RobustReflectionConverter.java:89) com.thoughtworks.xstream.core.AbstractReferenceMarshaller.convert(AbstractReferenceMarshaller.java:68) com.thoughtworks.xstream.core.TreeMarshaller.convertAnother(TreeMarshaller.java:78) com.thoughtworks.xstream.core.TreeMarshaller.convertAnother(TreeMarshaller.java:63) hudson.util.RobustReflectionConverter.marshallField(RobustReflectionConverter.java:167) hudson.util.RobustReflectionConverter$2.writeField(RobustReflectionConverter.java:155) hudson.util.RobustReflectionConverter$2.visit(RobustReflectionConverter.java:130) com.thoughtworks.xstream.converters.reflection.PureJavaReflectionProvider.visitSerializableFields(PureJavaReflectionProvider.java:130) hudson.util.RobustReflectionConverter.doMarshal(RobustReflectionConverter.java:115) hudson.util.RobustReflectionConverter.marshal(RobustReflectionConverter.java:89) com.thoughtworks.xstream.core.AbstractReferenceMarshaller.convert(AbstractReferenceMarshaller.java:68) com.thoughtworks.xstream.core.TreeMarshaller.convertAnother(TreeMarshaller.java:78) com.thoughtworks.xstream.core.TreeMarshaller.convertAnother(TreeMarshaller.java:63) com.thoughtworks.xstream.converters.collections.AbstractCollectionConverter.writeItem(AbstractCollectionConverter.java:64) com.thoughtworks.xstream.converters.collections.MapConverter.marshal(MapConverter.java:57) com.thoughtworks.xstream.core.AbstractReferenceMarshaller.convert(AbstractReferenceMarshaller.java:68) com.thoughtworks.xstream.core.TreeMarshaller.convertAnother(TreeMarshaller.java:78) com.thoughtworks.xstream.core.TreeMarshaller.convertAnother(TreeMarshaller.java:63) hudson.util.RobustReflectionConverter.marshallField(RobustReflectionConverter.java:167) hudson.util.RobustReflectionConverter$2.writeField(RobustReflectionConverter.java:155) hudson.util.RobustReflectionConverter$2.visit(RobustReflectionConverter.java:130) com.thoughtworks.xstream.converters.reflection.PureJavaReflectionProvider.visitSerializableFields(PureJavaReflectionProvider.java:130) hudson.util.RobustReflectionConverter.doMarshal(RobustReflectionConverter.java:115) hudson.util.RobustReflectionConverter.marshal(RobustReflectionConverter.java:89) com.thoughtworks.xstream.core.AbstractReferenceMarshaller.convert(AbstractReferenceMarshaller.java:68) com.thoughtworks.xstream.core.TreeMarshaller.convertAnother(TreeMarshaller.java:78) com.thoughtworks.xstream.core.TreeMarshaller.convertAnother(TreeMarshaller.java:63) com.thoughtworks.xstream.converters.collections.AbstractCollectionConverter.writeItem(AbstractCollectionConverter.java:64) com.thoughtworks.xstream.converters.collections.CollectionConverter.marshal(CollectionConverter.java:55) com.thoughtworks.xstream.core.AbstractReferenceMarshaller.convert(AbstractReferenceMarshaller.java:68) com.thoughtworks.xstream.core.TreeMarshaller.convertAnother(TreeMarshaller.java:78) com.thoughtworks.xstream.core.TreeMarshaller.convertAnother(TreeMarshaller.java:63) hudson.util.RobustReflectionConverter.marshallField(RobustReflectionConverter.java:167) hudson.util.RobustReflectionConverter$2.writeField(RobustReflectionConverter.java:155) hudson.util.RobustReflectionConverter$2.visit(RobustReflectionConverter.java:130) com.thoughtworks.xstream.converters.reflection.PureJavaReflectionProvider.visitSerializableFields(PureJavaReflectionProvider.java:130) hudson.util.RobustReflectionConverter.doMarshal(RobustReflectionConverter.java:115) hudson.util.RobustReflectionConverter.marshal(RobustReflectionConverter.java:89) com.thoughtworks.xstream.core.AbstractReferenceMarshaller.convert(AbstractReferenceMarshaller.java:68) com.thoughtworks.xstream.core.TreeMarshaller.convertAnother(TreeMarshaller.java:78) com.thoughtworks.xstream.core.TreeMarshaller.convertAnother(TreeMarshaller.java:63) com.thoughtworks.xstream.core.TreeMarshaller.start(TreeMarshaller.java:98) com.thoughtworks.xstream.core.AbstractTreeMarshallingStrategy.marshal(AbstractTreeMarshallingStrategy.java:38) com.thoughtworks.xstream.XStream.marshal(XStream.java:837) com.thoughtworks.xstream.XStream.marshal(XStream.java:826) com.thoughtworks.xstream.XStream.toXML(XStream.java:801) hudson.XmlFile.write(XmlFile.java:165) hudson.model.Hudson.save(Hudson.java:2175) hudson.BulkChange.commit(BulkChange.java:113) hudson.model.Hudson.doConfigSubmit(Hudson.java:2377) sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) java.lang.reflect.Method.invoke(Method.java:597) org.kohsuke.stapler.Function$InstanceFunction.invoke(Function.java:185) org.kohsuke.stapler.Function.bindAndInvoke(Function.java:101) org.kohsuke.stapler.Function.bindAndInvokeAndServeResponse(Function.java:54) org.kohsuke.stapler.MetaClass$1.doDispatch(MetaClass.java:74) org.kohsuke.stapler.NameBasedDispatcher.dispatch(NameBasedDispatcher.java:30) org.kohsuke.stapler.Stapler.invoke(Stapler.java:500) org.kohsuke.stapler.Stapler.invoke(Stapler.java:416) org.kohsuke.stapler.Stapler.service(Stapler.java:122) javax.servlet.http.HttpServlet.service(HttpServlet.java:803) hudson.util.PluginServletFilter$1.doFilter(PluginServletFilter.java:94) hudson.util.PluginServletFilter.doFilter(PluginServletFilter.java:86) hudson.security.csrf.CrumbFilter.doFilter(CrumbFilter.java:47) hudson.security.ChainedServletFilter$1.doFilter(ChainedServletFilter.java:84) hudson.security.UnwrapSecurityExceptionFilter.doFilter(UnwrapSecurityExceptionFilter.java:51) hudson.security.ChainedServletFilter$1.doFilter(ChainedServletFilter.java:87) org.acegisecurity.ui.ExceptionTranslationFilter.doFilter(ExceptionTranslationFilter.java:166) hudson.security.ChainedServletFilter$1.doFilter(ChainedServletFilter.java:87) org.acegisecurity.providers.anonymous.AnonymousProcessingFilter.doFilter(AnonymousProcessingFilter.java:125) hudson.security.ChainedServletFilter$1.doFilter(ChainedServletFilter.java:87) org.acegisecurity.ui.rememberme.RememberMeProcessingFilter.doFilter(RememberMeProcessingFilter.java:142) hudson.security.ChainedServletFilter$1.doFilter(ChainedServletFilter.java:87) org.acegisecurity.ui.AbstractProcessingFilter.doFilter(AbstractProcessingFilter.java:271) hudson.security.ChainedServletFilter$1.doFilter(ChainedServletFilter.java:87) org.acegisecurity.ui.basicauth.BasicProcessingFilter.doFilter(BasicProcessingFilter.java:173) hudson.security.ChainedServletFilter$1.doFilter(ChainedServletFilter.java:87) org.acegisecurity.context.HttpSessionContextIntegrationFilter.doFilter(HttpSessionContextIntegrationFilter.java:249) hudson.security.HttpSessionContextIntegrationFilter2.doFilter(HttpSessionContextIntegrationFilter2.java:66) hudson.security.ChainedServletFilter$1.doFilter(ChainedServletFilter.java:87) hudson.security.ChainedServletFilter.doFilter(ChainedServletFilter.java:76) hudson.security.HudsonFilter.doFilter(HudsonFilter.java:164) *root cause* java.lang.RuntimeException: Failed to serialize java.lang.Thread#group for class hudson.model.Executor hudson.util.RobustReflectionConverter$2.writeField(RobustReflectionConverter.java:159) hudson.util.RobustReflectionConverter$2.visit(RobustReflectionConverter.java:130) com.thoughtworks.xstream.converters.reflection.PureJavaReflectionProvider.visitSerializableFields(PureJavaReflectionProvider.java:130) hudson.util.RobustReflectionConverter.doMarshal(RobustReflectionConverter.java:115) hudson.util.RobustReflectionConverter.marshal(RobustReflectionConverter.java:89) com.thoughtworks.xstream.core.AbstractReferenceMarshaller.convert(AbstractReferenceMarshaller.java:68) com.thoughtworks.xstream.core.TreeMarshaller.convertAnother(TreeMarshaller.java:78) com.thoughtworks.xstream.core.TreeMarshaller.convertAnother(TreeMarshaller.java:63) com.thoughtworks.xstream.converters.collections.AbstractCollectionConverter.writeItem(AbstractCollectionConverter.java:64) com.thoughtworks.xstream.converters.collections.MapConverter.marshal(MapConverter.java:57) com.thoughtworks.xstream.core.AbstractReferenceMarshaller.convert(AbstractReferenceMarshaller.java:68) com.thoughtworks.xstream.core.TreeMarshaller.convertAnother(TreeMarshaller.java:78) com.thoughtworks.xstream.core.TreeMarshaller.convertAnother(TreeMarshaller.java:63) hudson.util.RobustReflectionConverter.marshallField(RobustReflectionConverter.java:167) hudson.util.RobustReflectionConverter$2.writeField(RobustReflectionConverter.java:155) hudson.util.RobustReflectionConverter$2.visit(RobustReflectionConverter.java:130) com.thoughtworks.xstream.converters.reflection.PureJavaReflectionProvider.visitSerializableFields(PureJavaReflectionProvider.java:130) hudson.util.RobustReflectionConverter.doMarshal(RobustReflectionConverter.java:115) hudson.util.RobustReflectionConverter.marshal(RobustReflectionConverter.java:89) com.thoughtworks.xstream.core.AbstractReferenceMarshaller.convert(AbstractReferenceMarshaller.java:68) com.thoughtworks.xstream.core.TreeMarshaller.convertAnother(TreeMarshaller.java:78) com.thoughtworks.xstream.core.TreeMarshaller.convertAnother(TreeMarshaller.java:63) hudson.util.RobustReflectionConverter.marshallField(RobustReflectionConverter.java:167) hudson.util.RobustReflectionConverter$2.writeField(RobustReflectionConverter.java:155) hudson.util.RobustReflectionConverter$2.visit(RobustReflectionConverter.java:130) com.thoughtworks.xstream.converters.reflection.PureJavaReflectionProvider.visitSerializableFields(PureJavaReflectionProvider.java:130) hudson.util.RobustReflectionConverter.doMarshal(RobustReflectionConverter.java:115) hudson.util.RobustReflectionConverter.marshal(RobustReflectionConverter.java:89) com.thoughtworks.xstream.core.AbstractReferenceMarshaller.convert(AbstractReferenceMarshaller.java:68) com.thoughtworks.xstream.core.TreeMarshaller.convertAnother(TreeMarshaller.java:78) com.thoughtworks.xstream.core.TreeMarshaller.convertAnother(TreeMarshaller.java:63) com.thoughtworks.xstream.converters.collections.AbstractCollectionConverter.writeItem(AbstractCollectionConverter.java:64) com.thoughtworks.xstream.converters.collections.MapConverter.marshal(MapConverter.java:57) com.thoughtworks.xstream.core.AbstractReferenceMarshaller.convert(AbstractReferenceMarshaller.java:68) com.thoughtworks.xstream.core.TreeMarshaller.convertAnother(TreeMarshaller.java:78) com.thoughtworks.xstream.core.TreeMarshaller.convertAnother(TreeMarshaller.java:63) hudson.util.RobustReflectionConverter.marshallField(RobustReflectionConverter.java:167) hudson.util.RobustReflectionConverter$2.writeField(RobustReflectionConverter.java:155) hudson.util.RobustReflectionConverter$2.visit(RobustReflectionConverter.java:130) com.thoughtworks.xstream.converters.reflection.PureJavaReflectionProvider.visitSerializableFields(PureJavaReflectionProvider.java:130) hudson.util.RobustReflectionConverter.doMarshal(RobustReflectionConverter.java:115) hudson.util.RobustReflectionConverter.marshal(RobustReflectionConverter.java:89) com.thoughtworks.xstream.core.AbstractReferenceMarshaller.convert(AbstractReferenceMarshaller.java:68) com.thoughtworks.xstream.core.TreeMarshaller.convertAnother(TreeMarshaller.java:78) com.thoughtworks.xstream.core.TreeMarshaller.convertAnother(TreeMarshaller.java:63) com.thoughtworks.xstream.converters.collections.AbstractCollectionConverter.writeItem(AbstractCollectionConverter.java:64) com.thoughtworks.xstream.converters.collections.CollectionConverter.marshal(CollectionConverter.java:55) com.thoughtworks.xstream.core.AbstractReferenceMarshaller.convert(AbstractReferenceMarshaller.java:68) com.thoughtworks.xstream.core.TreeMarshaller.convertAnother(TreeMarshaller.java:78) com.thoughtworks.xstream.core.TreeMarshaller.convertAnother(TreeMarshaller.java:63) hudson.util.RobustReflectionConverter.marshallField(RobustReflectionConverter.java:167) hudson.util.RobustReflectionConverter$2.writeField(RobustReflectionConverter.java:155) hudson.util.RobustReflectionConverter$2.visit(RobustReflectionConverter.java:130) com.thoughtworks.xstream.converters.reflection.PureJavaReflectionProvider.visitSerializableFields(PureJavaReflectionProvider.java:130) hudson.util.RobustReflectionConverter.doMarshal(RobustReflectionConverter.java:115) hudson.util.RobustReflectionConverter.marshal(RobustReflectionConverter.java:89) com.thoughtworks.xstream.core.AbstractReferenceMarshaller.convert(AbstractReferenceMarshaller.java:68) com.thoughtworks.xstream.core.TreeMarshaller.convertAnother(TreeMarshaller.java:78) com.thoughtworks.xstream.core.TreeMarshaller.convertAnother(TreeMarshaller.java:63) com.thoughtworks.xstream.core.TreeMarshaller.start(TreeMarshaller.java:98) com.thoughtworks.xstream.core.AbstractTreeMarshallingStrategy.marshal(AbstractTreeMarshallingStrategy.java:38) com.thoughtworks.xstream.XStream.marshal(XStream.java:837) com.thoughtworks.xstream.XStream.marshal(XStream.java:826) com.thoughtworks.xstream.XStream.toXML(XStream.java:801) hudson.XmlFile.write(XmlFile.java:165) hudson.model.Hudson.save(Hudson.java:2175) hudson.BulkChange.commit(BulkChange.java:113) hudson.model.Hudson.doConfigSubmit(Hudson.java:2377) sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) java.lang.reflect.Method.invoke(Method.java:597) org.kohsuke.stapler.Function$InstanceFunction.invoke(Function.java:185) org.kohsuke.stapler.Function.bindAndInvoke(Function.java:101) org.kohsuke.stapler.Function.bindAndInvokeAndServeResponse(Function.java:54) org.kohsuke.stapler.MetaClass$1.doDispatch(MetaClass.java:74) org.kohsuke.stapler.NameBasedDispatcher.dispatch(NameBasedDispatcher.java:30) org.kohsuke.stapler.Stapler.invoke(Stapler.java:500) org.kohsuke.stapler.Stapler.invoke(Stapler.java:416) org.kohsuke.stapler.Stapler.service(Stapler.java:122) javax.servlet.http.HttpServlet.service(HttpServlet.java:803) hudson.util.PluginServletFilter$1.doFilter(PluginServletFilter.java:94) hudson.util.PluginServletFilter.doFilter(PluginServletFilter.java:86) hudson.security.csrf.CrumbFilter.doFilter(CrumbFilter.java:47) hudson.security.ChainedServletFilter$1.doFilter(ChainedServletFilter.java:84) hudson.security.UnwrapSecurityExceptionFilter.doFilter(UnwrapSecurityExceptionFilter.java:51) hudson.security.ChainedServletFilter$1.doFilter(ChainedServletFilter.java:87) org.acegisecurity.ui.ExceptionTranslationFilter.doFilter(ExceptionTranslationFilter.java:166) hudson.security.ChainedServletFilter$1.doFilter(ChainedServletFilter.java:87) org.acegisecurity.providers.anonymous.AnonymousProcessingFilter.doFilter(AnonymousProcessingFilter.java:125) hudson.security.ChainedServletFilter$1.doFilter(ChainedServletFilter.java:87) org.acegisecurity.ui.rememberme.RememberMeProcessingFilter.doFilter(RememberMeProcessingFilter.java:142) hudson.security.ChainedServletFilter$1.doFilter(ChainedServletFilter.java:87) org.acegisecurity.ui.AbstractProcessingFilter.doFilter(AbstractProcessingFilter.java:271) hudson.security.ChainedServletFilter$1.doFilter(ChainedServletFilter.java:87) org.acegisecurity.ui.basicauth.BasicProcessingFilter.doFilter(BasicProcessingFilter.java:173) hudson.security.ChainedServletFilter$1.doFilter(ChainedServletFilter.java:87) org.acegisecurity.context.HttpSessionContextIntegrationFilter.doFilter(HttpSessionContextIntegrationFilter.java:249) hudson.security.HttpSessionContextIntegrationFilter2.doFilter(HttpSessionContextIntegrationFilter2.java:66) hudson.security.ChainedServletFilter$1.doFilter(ChainedServletFilter.java:87) hudson.security.ChainedServletFilter.doFilter(ChainedServletFilter.java:76) hudson.security.HudsonFilter.doFilter(HudsonFilter.java:164) *root cause* java.lang.RuntimeException: Failed to serialize java.lang.ThreadGroup#parent for class java.lang.ThreadGroup hudson.util.RobustReflectionConverter$2.writeField(RobustReflectionConverter.java:159) hudson.util.RobustReflectionConverter$2.visit(RobustReflectionConverter.java:130) com.thoughtworks.xstream.converters.reflection.PureJavaReflectionProvider.visitSerializableFields(PureJavaReflectionProvider.java:130) hudson.util.RobustReflectionConverter.doMarshal(RobustReflectionConverter.java:115) hudson.util.RobustReflectionConverter.marshal(RobustReflectionConverter.java:89) com.thoughtworks.xstream.core.AbstractReferenceMarshaller.convert(AbstractReferenceMarshaller.java:68) com.thoughtworks.xstream.core.TreeMarshaller.convertAnother(TreeMarshaller.java:78) com.thoughtworks.xstream.core.TreeMarshaller.convertAnother(TreeMarshaller.java:63) hudson.util.RobustReflectionConverter.marshallField(RobustReflectionConverter.java:167) hudson.util.RobustReflectionConverter$2.writeField(RobustReflectionConverter.java:155) hudson.util.RobustReflectionConverter$2.visit(RobustReflectionConverter.java:130) com.thoughtworks.xstream.converters.reflection.PureJavaReflectionProvider.visitSerializableFields(PureJavaReflectionProvider.java:130) hudson.util.RobustReflectionConverter.doMarshal(RobustReflectionConverter.java:115) hudson.util.RobustReflectionConverter.marshal(RobustReflectionConverter.java:89) com.thoughtworks.xstream.core.AbstractReferenceMarshaller.convert(AbstractReferenceMarshaller.java:68) com.thoughtworks.xstream.core.TreeMarshaller.convertAnother(TreeMarshaller.java:78) com.thoughtworks.xstream.core.TreeMarshaller.convertAnother(TreeMarshaller.java:63) com.thoughtworks.xstream.converters.collections.AbstractCollectionConverter.writeItem(AbstractCollectionConverter.java:64) com.thoughtworks.xstream.converters.collections.MapConverter.marshal(MapConverter.java:57) com.thoughtworks.xstream.core.AbstractReferenceMarshaller.convert(AbstractReferenceMarshaller.java:68) com.thoughtworks.xstream.core.TreeMarshaller.convertAnother(TreeMarshaller.java:78) com.thoughtworks.xstream.core.TreeMarshaller.convertAnother(TreeMarshaller.java:63) hudson.util.RobustReflectionConverter.marshallField(RobustReflectionConverter.java:167) hudson.util.RobustReflectionConverter$2.writeField(RobustReflectionConverter.java:155) hudson.util.RobustReflectionConverter$2.visit(RobustReflectionConverter.java:130) com.thoughtworks.xstream.converters.reflection.PureJavaReflectionProvider.visitSerializableFields(PureJavaReflectionProvider.java:130) hudson.util.RobustReflectionConverter.doMarshal(RobustReflectionConverter.java:115) hudson.util.RobustReflectionConverter.marshal(RobustReflectionConverter.java:89) com.thoughtworks.xstream.core.AbstractReferenceMarshaller.convert(AbstractReferenceMarshaller.java:68) com.thoughtworks.xstream.core.TreeMarshaller.convertAnother(TreeMarshaller.java:78) com.thoughtworks.xstream.core.TreeMarshaller.convertAnother(TreeMarshaller.java:63) hudson.util.RobustReflectionConverter.marshallField(RobustReflectionConverter.java:167) hudson.util.RobustReflectionConverter$2.writeField(RobustReflectionConverter.java:155) hudson.util.RobustReflectionConverter$2.visit(RobustReflectionConverter.java:130) com.thoughtworks.xstream.converters.reflection.PureJavaReflectionProvider.visitSerializableFields(PureJavaReflectionProvider.java:130) hudson.util.RobustReflectionConverter.doMarshal(RobustReflectionConverter.java:115) hudson.util.RobustReflectionConverter.marshal(RobustReflectionConverter.java:89) com.thoughtworks.xstream.core.AbstractReferenceMarshaller.convert(AbstractReferenceMarshaller.java:68) com.thoughtworks.xstream.core.TreeMarshaller.convertAnother(TreeMarshaller.java:78) com.thoughtworks.xstream.core.TreeMarshaller.convertAnother(TreeMarshaller.java:63) com.thoughtworks.xstream.converters.collections.AbstractCollectionConverter.writeItem(AbstractCollectionConverter.java:64) com.thoughtworks.xstream.converters.collections.MapConverter.marshal(MapConverter.java:57) com.thoughtworks.xstream.core.AbstractReferenceMarshaller.convert(AbstractReferenceMarshaller.java:68) com.thoughtworks.xstream.core.TreeMarshaller.convertAnother(TreeMarshaller.java:78) com.thoughtworks.xstream.core.TreeMarshaller.convertAnother(TreeMarshaller.java:63) hudson.util.RobustReflectionConverter.marshallField(RobustReflectionConverter.java:167) hudson.util.RobustReflectionConverter$2.writeField(RobustReflectionConverter.java:155) hudson.util.RobustReflectionConverter$2.visit(RobustReflectionConverter.java:130) com.thoughtworks.xstream.converters.reflection.PureJavaReflectionProvider.visitSerializableFields(PureJavaReflectionProvider.java:130) hudson.util.RobustReflectionConverter.doMarshal(RobustReflectionConverter.java:115) hudson.util.RobustReflectionConverter.marshal(RobustReflectionConverter.java:89) com.thoughtworks.xstream.core.AbstractReferenceMarshaller.convert(AbstractReferenceMarshaller.java:68) com.thoughtworks.xstream.core.TreeMarshaller.convertAnother(TreeMarshaller.java:78) com.thoughtworks.xstream.core.TreeMarshaller.convertAnother(TreeMarshaller.java:63) com.thoughtworks.xstream.converters.collections.AbstractCollectionConverter.writeItem(AbstractCollectionConverter.java:64) com.thoughtworks.xstream.converters.collections.CollectionConverter.marshal(CollectionConverter.java:55) com.thoughtworks.xstream.core.AbstractReferenceMarshaller.convert(AbstractReferenceMarshaller.java:68) com.thoughtworks.xstream.core.TreeMarshaller.convertAnother(TreeMarshaller.java:78) com.thoughtworks.xstream.core.TreeMarshaller.convertAnother(TreeMarshaller.java:63) hudson.util.RobustReflectionConverter.marshallField(RobustReflectionConverter.java:167) hudson.util.RobustReflectionConverter$2.writeField(RobustReflectionConverter.java:155) hudson.util.RobustReflectionConverter$2.visit(RobustReflectionConverter.java:130) com.thoughtworks.xstream.converters.reflection.PureJavaReflectionProvider.visitSerializableFields(PureJavaReflectionProvider.java:130) hudson.util.RobustReflectionConverter.doMarshal(RobustReflectionConverter.java:115) hudson.util.RobustReflectionConverter.marshal(RobustReflectionConverter.java:89) com.thoughtworks.xstream.core.AbstractReferenceMarshaller.convert(AbstractReferenceMarshaller.java:68) com.thoughtworks.xstream.core.TreeMarshaller.convertAnother(TreeMarshaller.java:78) com.thoughtworks.xstream.core.TreeMarshaller.convertAnother(TreeMarshaller.java:63) com.thoughtworks.xstream.core.TreeMarshaller.start(TreeMarshaller.java:98) com.thoughtworks.xstream.core.AbstractTreeMarshallingStrategy.marshal(AbstractTreeMarshallingStrategy.java:38) com.thoughtworks.xstream.XStream.marshal(XStream.java:837) com.thoughtworks.xstream.XStream.marshal(XStream.java:826) com.thoughtworks.xstream.XStream.toXML(XStream.java:801) hudson.XmlFile.write(XmlFile.java:165) hudson.model.Hudson.save(Hudson.java:2175) hudson.BulkChange.commit(BulkChange.java:113) hudson.model.Hudson.doConfigSubmit(Hudson.java:2377) sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) java.lang.reflect.Method.invoke(Method.java:597) org.kohsuke.stapler.Function$InstanceFunction.invoke(Function.java:185) org.kohsuke.stapler.Function.bindAndInvoke(Function.java:101) org.kohsuke.stapler.Function.bindAndInvokeAndServeResponse(Function.java:54) org.kohsuke.stapler.MetaClass$1.doDispatch(MetaClass.java:74) org.kohsuke.stapler.NameBasedDispatcher.dispatch(NameBasedDispatcher.java:30) org.kohsuke.stapler.Stapler.invoke(Stapler.java:500) org.kohsuke.stapler.Stapler.invoke(Stapler.java:416) org.kohsuke.stapler.Stapler.service(Stapler.java:122) javax.servlet.http.HttpServlet.service(HttpServlet.java:803) hudson.util.PluginServletFilter$1.doFilter(PluginServletFilter.java:94) hudson.util.PluginServletFilter.doFilter(PluginServletFilter.java:86) hudson.security.csrf.CrumbFilter.doFilter(CrumbFilter.java:47) hudson.security.ChainedServletFilter$1.doFilter(ChainedServletFilter.java:84) hudson.security.UnwrapSecurityExceptionFilter.doFilter(UnwrapSecurityExceptionFilter.java:51) hudson.security.ChainedServletFilter$1.doFilter(ChainedServletFilter.java:87) org.acegisecurity.ui.ExceptionTranslationFilter.doFilter(ExceptionTranslationFilter.java:166) hudson.security.ChainedServletFilter$1.doFilter(ChainedServletFilter.java:87) org.acegisecurity.providers.anonymous.AnonymousProcessingFilter.doFilter(AnonymousProcessingFilter.java:125) hudson.security.ChainedServletFilter$1.doFilter(ChainedServletFilter.java:87) org.acegisecurity.ui.rememberme.RememberMeProcessingFilter.doFilter(RememberMeProcessingFilter.java:142) hudson.security.ChainedServletFilter$1.doFilter(ChainedServletFilter.java:87) org.acegisecurity.ui.AbstractProcessingFilter.doFilter(AbstractProcessingFilter.java:271) hudson.security.ChainedServletFilter$1.doFilter(ChainedServletFilter.java:87) org.acegisecurity.ui.basicauth.BasicProcessingFilter.doFilter(BasicProcessingFilter.java:173) hudson.security.ChainedServletFilter$1.doFilter(ChainedServletFilter.java:87) org.acegisecurity.context.HttpSessionContextIntegrationFilter.doFilter(HttpSessionContextIntegrationFilter.java:249) hudson.security.HttpSessionContextIntegrationFilter2.doFilter(HttpSessionContextIntegrationFilter2.java:66) hudson.security.ChainedServletFilter$1.doFilter(ChainedServletFilter.java:87) hudson.security.ChainedServletFilter.doFilter(ChainedServletFilter.java:76) hudson.security.HudsonFilter.doFilter(HudsonFilter.java:164) *root cause* java.lang.RuntimeException: Failed to serialize java.lang.ThreadGroup#threads for class java.lang.ThreadGroup hudson.util.RobustReflectionConverter$2.writeField(RobustReflectionConverter.java:159) hudson.util.RobustReflectionConverter$2.visit(RobustReflectionConverter.java:130) com.thoughtworks.xstream.converters.reflection.PureJavaReflectionProvider.visitSerializableFields(PureJavaReflectionProvider.java:130) hudson.util.RobustReflectionConverter.doMarshal(RobustReflectionConverter.java:115) hudson.util.RobustReflectionConverter.marshal(RobustReflectionConverter.java:89) com.thoughtworks.xstream.core.AbstractReferenceMarshaller.convert(AbstractReferenceMarshaller.java:68) com.thoughtworks.xstream.core.TreeMarshaller.convertAnother(TreeMarshaller.java:78) com.thoughtworks.xstream.core.TreeMarshaller.convertAnother(TreeMarshaller.java:63) hudson.util.RobustReflectionConverter.marshallField(RobustReflectionConverter.java:167) hudson.util.RobustReflectionConverter$2.writeField(RobustReflectionConverter.java:155) hudson.util.RobustReflectionConverter$2.visit(RobustReflectionConverter.java:130) com.thoughtworks.xstream.converters.reflection.PureJavaReflectionProvider.visitSerializableFields(PureJavaReflectionProvider.java:130) hudson.util.RobustReflectionConverter.doMarshal(RobustReflectionConverter.java:115) hudson.util.RobustReflectionConverter.marshal(RobustReflectionConverter.java:89) com.thoughtworks.xstream.core.AbstractReferenceMarshaller.convert(AbstractReferenceMarshaller.java:68) com.thoughtworks.xstream.core.TreeMarshaller.convertAnother(TreeMarshaller.java:78) com.thoughtworks.xstream.core.TreeMarshaller.convertAnother(TreeMarshaller.java:63) hudson.util.RobustReflectionConverter.marshallField(RobustReflectionConverter.java:167) hudson.util.RobustReflectionConverter$2.writeField(RobustReflectionConverter.java:155) hudson.util.RobustReflectionConverter$2.visit(RobustReflectionConverter.java:130) com.thoughtworks.xstream.converters.reflection.PureJavaReflectionProvider.visitSerializableFields(PureJavaReflectionProvider.java:130) hudson.util.RobustReflectionConverter.doMarshal(RobustReflectionConverter.java:115) hudson.util.RobustReflectionConverter.marshal(RobustReflectionConverter.java:89) com.thoughtworks.xstream.core.AbstractReferenceMarshaller.convert(AbstractReferenceMarshaller.java:68) com.thoughtworks.xstream.core.TreeMarshaller.convertAnother(TreeMarshaller.java:78) com.thoughtworks.xstream.core.TreeMarshaller.convertAnother(TreeMarshaller.java:63) com.thoughtworks.xstream.converters.collections.AbstractCollectionConverter.writeItem(AbstractCollectionConverter.java:64) com.thoughtworks.xstream.converters.collections.MapConverter.marshal(MapConverter.java:57) com.thoughtworks.xstream.core.AbstractReferenceMarshaller.convert(AbstractReferenceMarshaller.java:68) com.thoughtworks.xstream.core.TreeMarshaller.convertAnother(TreeMarshaller.java:78) com.thoughtworks.xstream.core.TreeMarshaller.convertAnother(TreeMarshaller.java:63) hudson.util.RobustReflectionConverter.marshallField(RobustReflectionConverter.java:167) hudson.util.RobustReflectionConverter$2.writeField(RobustReflectionConverter.java:155) hudson.util.RobustReflectionConverter$2.visit(RobustReflectionConverter.java:130) com.thoughtworks.xstream.converters.reflection.PureJavaReflectionProvider.visitSerializableFields(PureJavaReflectionProvider.java:130) hudson.util.RobustReflectionConverter.doMarshal(RobustReflectionConverter.java:115) hudson.util.RobustReflectionConverter.marshal(RobustReflectionConverter.java:89) com.thoughtworks.xstream.core.AbstractReferenceMarshaller.convert(AbstractReferenceMarshaller.java:68) com.thoughtworks.xstream.core.TreeMarshaller.convertAnother(TreeMarshaller.java:78) com.thoughtworks.xstream.core.TreeMarshaller.convertAnother(TreeMarshaller.java:63) hudson.util.RobustReflectionConverter.marshallField(RobustReflectionConverter.java:167) hudson.util.RobustReflectionConverter$2.writeField(RobustReflectionConverter.java:155) hudson.util.RobustReflectionConverter$2.visit(RobustReflectionConverter.java:130) com.thoughtworks.xstream.converters.reflection.PureJavaReflectionProvider.visitSerializableFields(PureJavaReflectionProvider.java:130) hudson.util.RobustReflectionConverter.doMarshal(RobustReflectionConverter.java:115) hudson.util.RobustReflectionConverter.marshal(RobustReflectionConverter.java:89) com.thoughtworks.xstream.core.AbstractReferenceMarshaller.convert(AbstractReferenceMarshaller.java:68) com.thoughtworks.xstream.core.TreeMarshaller.convertAnother(TreeMarshaller.java:78) com.thoughtworks.xstream.core.TreeMarshaller.convertAnother(TreeMarshaller.java:63) com.thoughtworks.xstream.converters.collections.AbstractCollectionConverter.writeItem(AbstractCollectionConverter.java:64) com.thoughtworks.xstream.converters.collections.MapConverter.marshal(MapConverter.java:57) com.thoughtworks.xstream.core.AbstractReferenceMarshaller.convert(AbstractReferenceMarshaller.java:68) com.thoughtworks.xstream.core.TreeMarshaller.convertAnother(TreeMarshaller.java:78) com.thoughtworks.xstream.core.TreeMarshaller.convertAnother(TreeMarshaller.java:63) hudson.util.RobustReflectionConverter.marshallField(RobustReflectionConverter.java:167) hudson.util.RobustReflectionConverter$2.writeField(RobustReflectionConverter.java:155) hudson.util.RobustReflectionConverter$2.visit(RobustReflectionConverter.java:130) com.thoughtworks.xstream.converters.reflection.PureJavaReflectionProvider.visitSerializableFields(PureJavaReflectionProvider.java:130) hudson.util.RobustReflectionConverter.doMarshal(RobustReflectionConverter.java:115) hudson.util.RobustReflectionConverter.marshal(RobustReflectionConverter.java:89) com.thoughtworks.xstream.core.AbstractReferenceMarshaller.convert(AbstractReferenceMarshaller.java:68) com.thoughtworks.xstream.core.TreeMarshaller.convertAnother(TreeMarshaller.java:78) com.thoughtworks.xstream.core.TreeMarshaller.convertAnother(TreeMarshaller.java:63) com.thoughtworks.xstream.converters.collections.AbstractCollectionConverter.writeItem(AbstractCollectionConverter.java:64) com.thoughtworks.xstream.converters.collections.CollectionConverter.marshal(CollectionConverter.java:55) com.thoughtworks.xstream.core.AbstractReferenceMarshaller.convert(AbstractReferenceMarshaller.java:68) com.thoughtworks.xstream.core.TreeMarshaller.convertAnother(TreeMarshaller.java:78) com.thoughtworks.xstream.core.TreeMarshaller.convertAnother(TreeMarshaller.java:63) hudson.util.RobustReflectionConverter.marshallField(RobustReflectionConverter.java:167) hudson.util.RobustReflectionConverter$2.writeField(RobustReflectionConverter.java:155) hudson.util.RobustReflectionConverter$2.visit(RobustReflectionConverter.java:130) com.thoughtworks.xstream.converters.reflection.PureJavaReflectionProvider.visitSerializableFields(PureJavaReflectionProvider.java:130) hudson.util.RobustReflectionConverter.doMarshal(RobustReflectionConverter.java:115) hudson.util.RobustReflectionConverter.marshal(RobustReflectionConverter.java:89) com.thoughtworks.xstream.core.AbstractReferenceMarshaller.convert(AbstractReferenceMarshaller.java:68) com.thoughtworks.xstream.core.TreeMarshaller.convertAnother(TreeMarshaller.java:78) com.thoughtworks.xstream.core.TreeMarshaller.convertAnother(TreeMarshaller.java:63) com.thoughtworks.xstream.core.TreeMarshaller.start(TreeMarshaller.java:98) com.thoughtworks.xstream.core.AbstractTreeMarshallingStrategy.marshal(AbstractTreeMarshallingStrategy.java:38) com.thoughtworks.xstream.XStream.marshal(XStream.java:837) com.thoughtworks.xstream.XStream.marshal(XStream.java:826) com.thoughtworks.xstream.XStream.toXML(XStream.java:801) hudson.XmlFile.write(XmlFile.java:165) hudson.model.Hudson.save(Hudson.java:2175) hudson.BulkChange.commit(BulkChange.java:113) hudson.model.Hudson.doConfigSubmit(Hudson.java:2377) sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) java.lang.reflect.Method.invoke(Method.java:597) org.kohsuke.stapler.Function$InstanceFunction.invoke(Function.java:185) org.kohsuke.stapler.Function.bindAndInvoke(Function.java:101) org.kohsuke.stapler.Function.bindAndInvokeAndServeResponse(Function.java:54) org.kohsuke.stapler.MetaClass$1.doDispatch(MetaClass.java:74) org.kohsuke.stapler.NameBasedDispatcher.dispatch(NameBasedDispatcher.java:30) org.kohsuke.stapler.Stapler.invoke(Stapler.java:500) org.kohsuke.stapler.Stapler.invoke(Stapler.java:416) org.kohsuke.stapler.Stapler.service(Stapler.java:122) javax.servlet.http.HttpServlet.service(HttpServlet.java:803) hudson.util.PluginServletFilter$1.doFilter(PluginServletFilter.java:94) hudson.util.PluginServletFilter.doFilter(PluginServletFilter.java:86) hudson.security.csrf.CrumbFilter.doFilter(CrumbFilter.java:47) hudson.security.ChainedServletFilter$1.doFilter(ChainedServletFilter.java:84) hudson.security.UnwrapSecurityExceptionFilter.doFilter(UnwrapSecurityExceptionFilter.java:51) hudson.security.ChainedServletFilter$1.doFilter(ChainedServletFilter.java:87) org.acegisecurity.ui.ExceptionTranslationFilter.doFilter(ExceptionTranslationFilter.java:166) hudson.security.ChainedServletFilter$1.doFilter(ChainedServletFilter.java:87) org.acegisecurity.providers.anonymous.AnonymousProcessingFilter.doFilter(AnonymousProcessingFilter.java:125) hudson.security.ChainedServletFilter$1.doFilter(ChainedServletFilter.java:87) org.acegisecurity.ui.rememberme.RememberMeProcessingFilter.doFilter(RememberMeProcessingFilter.java:142) hudson.security.ChainedServletFilter$1.doFilter(ChainedServletFilter.java:87) org.acegisecurity.ui.AbstractProcessingFilter.doFilter(AbstractProcessingFilter.java:271) hudson.security.ChainedServletFilter$1.doFilter(ChainedServletFilter.java:87) org.acegisecurity.ui.basicauth.BasicProcessingFilter.doFilter(BasicProcessingFilter.java:173) hudson.security.ChainedServletFilter$1.doFilter(ChainedServletFilter.java:87) org.acegisecurity.context.HttpSessionContextIntegrationFilter.doFilter(HttpSessionContextIntegrationFilter.java:249) hudson.security.HttpSessionContextIntegrationFilter2.doFilter(HttpSessionContextIntegrationFilter2.java:66) hudson.security.ChainedServletFilter$1.doFilter(ChainedServletFilter.java:87) hudson.security.ChainedServletFilter.doFilter(ChainedServletFilter.java:76) hudson.security.HudsonFilter.doFilter(HudsonFilter.java:164) *root cause* java.lang.RuntimeException: Failed to serialize java.lang.Thread#target for class java.lang.Thread hudson.util.RobustReflectionConverter$2.writeField(RobustReflectionConverter.java:159) hudson.util.RobustReflectionConverter$2.visit(RobustReflectionConverter.java:130) com.thoughtworks.xstream.converters.reflection.PureJavaReflectionProvider.visitSerializableFields(PureJavaReflectionProvider.java:130) hudson.util.RobustReflectionConverter.doMarshal(RobustReflectionConverter.java:115) hudson.util.RobustReflectionConverter.marshal(RobustReflectionConverter.java:89) com.thoughtworks.xstream.core.AbstractReferenceMarshaller.convert(AbstractReferenceMarshaller.java:68) com.thoughtworks.xstream.core.TreeMarshaller.convertAnother(TreeMarshaller.java:78) com.thoughtworks.xstream.core.TreeMarshaller.convertAnother(TreeMarshaller.java:63) com.thoughtworks.xstream.converters.collections.AbstractCollectionConverter.writeItem(AbstractCollectionConverter.java:64) com.thoughtworks.xstream.converters.collections.ArrayConverter.marshal(ArrayConverter.java:45) com.thoughtworks.xstream.core.AbstractReferenceMarshaller.convert(AbstractReferenceMarshaller.java:68) com.thoughtworks.xstream.core.TreeMarshaller.convertAnother(TreeMarshaller.java:78) com.thoughtworks.xstream.core.TreeMarshaller.convertAnother(TreeMarshaller.java:63) hudson.util.RobustReflectionConverter.marshallField(RobustReflectionConverter.java:167) hudson.util.RobustReflectionConverter$2.writeField(RobustReflectionConverter.java:155) hudson.util.RobustReflectionConverter$2.visit(RobustReflectionConverter.java:130) com.thoughtworks.xstream.converters.reflection.PureJavaReflectionProvider.visitSerializableFields(PureJavaReflectionProvider.java:130) hudson.util.RobustReflectionConverter.doMarshal(RobustReflectionConverter.java:115) hudson.util.RobustReflectionConverter.marshal(RobustReflectionConverter.java:89) com.thoughtworks.xstream.core.AbstractReferenceMarshaller.convert(AbstractReferenceMarshaller.java:68) com.thoughtworks.xstream.core.TreeMarshaller.convertAnother(TreeMarshaller.java:78) com.thoughtworks.xstream.core.TreeMarshaller.convertAnother(TreeMarshaller.java:63) hudson.util.RobustReflectionConverter.marshallField(RobustReflectionConverter.java:167) hudson.util.RobustReflectionConverter$2.writeField(RobustReflectionConverter.java:155) hudson.util.RobustReflectionConverter$2.visit(RobustReflectionConverter.java:130) com.thoughtworks.xstream.converters.reflection.PureJavaReflectionProvider.visitSerializableFields(PureJavaReflectionProvider.java:130) hudson.util.RobustReflectionConverter.doMarshal(RobustReflectionConverter.java:115) hudson.util.RobustReflectionConverter.marshal(RobustReflectionConverter.java:89) com.thoughtworks.xstream.core.AbstractReferenceMarshaller.convert(AbstractReferenceMarshaller.java:68) com.thoughtworks.xstream.core.TreeMarshaller.convertAnother(TreeMarshaller.java:78) com.thoughtworks.xstream.core.TreeMarshaller.convertAnother(TreeMarshaller.java:63) hudson.util.RobustReflectionConverter.marshallField(RobustReflectionConverter.java:167) hudson.util.RobustReflectionConverter$2.writeField(RobustReflectionConverter.java:155) hudson.util.RobustReflectionConverter$2.visit(RobustReflectionConverter.java:130) com.thoughtworks.xstream.converters.reflection.PureJavaReflectionProvider.visitSerializableFields(PureJavaReflectionProvider.java:130) hudson.util.RobustReflectionConverter.doMarshal(RobustReflectionConverter.java:115) hudson.util.RobustReflectionConverter.marshal(RobustReflectionConverter.java:89) com.thoughtworks.xstream.core.AbstractReferenceMarshaller.convert(AbstractReferenceMarshaller.java:68) com.thoughtworks.xstream.core.TreeMarshaller.convertAnother(TreeMarshaller.java:78) com.thoughtworks.xstream.core.TreeMarshaller.convertAnother(TreeMarshaller.java:63) com.thoughtworks.xstream.converters.collections.AbstractCollectionConverter.writeItem(AbstractCollectionConverter.java:64) com.thoughtworks.xstream.converters.collections.MapConverter.marshal(MapConverter.java:57) com.thoughtworks.xstream.core.AbstractReferenceMarshaller.convert(AbstractReferenceMarshaller.java:68) com.thoughtworks.xstream.core.TreeMarshaller.convertAnother(TreeMarshaller.java:78) com.thoughtworks.xstream.core.TreeMarshaller.convertAnother(TreeMarshaller.java:63) hudson.util.RobustReflectionConverter.marshallField(RobustReflectionConverter.java:167) hudson.util.RobustReflectionConverter$2.writeField(RobustReflectionConverter.java:155) hudson.util.RobustReflectionConverter$2.visit(RobustReflectionConverter.java:130) com.thoughtworks.xstream.converters.reflection.PureJavaReflectionProvider.visitSerializableFields(PureJavaReflectionProvider.java:130) hudson.util.RobustReflectionConverter.doMarshal(RobustReflectionConverter.java:115) hudson.util.RobustReflectionConverter.marshal(RobustReflectionConverter.java:89) com.thoughtworks.xstream.core.AbstractReferenceMarshaller.convert(AbstractReferenceMarshaller.java:68) com.thoughtworks.xstream.core.TreeMarshaller.convertAnother(TreeMarshaller.java:78) com.thoughtworks.xstream.core.TreeMarshaller.convertAnother(TreeMarshaller.java:63) hudson.util.RobustReflectionConverter.marshallField(RobustReflectionConverter.java:167) hudson.util.RobustReflectionConverter$2.writeField(RobustReflectionConverter.java:155) hudson.util.RobustReflectionConverter$2.visit(RobustReflectionConverter.java:130) com.thoughtworks.xstream.converters.reflection.PureJavaReflectionProvider.visitSerializableFields(PureJavaReflectionProvider.java:130) hudson.util.RobustReflectionConverter.doMarshal(RobustReflectionConverter.java:115) hudson.util.RobustReflectionConverter.marshal(RobustReflectionConverter.java:89) com.thoughtworks.xstream.core.AbstractReferenceMarshaller.convert(AbstractReferenceMarshaller.java:68) com.thoughtworks.xstream.core.TreeMarshaller.convertAnother(TreeMarshaller.java:78) com.thoughtworks.xstream.core.TreeMarshaller.convertAnother(TreeMarshaller.java:63) com.thoughtworks.xstream.converters.collections.AbstractCollectionConverter.writeItem(AbstractCollectionConverter.java:64) com.thoughtworks.xstream.converters.collections.MapConverter.marshal(MapConverter.java:57) com.thoughtworks.xstream.core.AbstractReferenceMarshaller.convert(AbstractReferenceMarshaller.java:68) com.thoughtworks.xstream.core.TreeMarshaller.convertAnother(TreeMarshaller.java:78) com.thoughtworks.xstream.core.TreeMarshaller.convertAnother(TreeMarshaller.java:63) hudson.util.RobustReflectionConverter.marshallField(RobustReflectionConverter.java:167) hudson.util.RobustReflectionConverter$2.writeField(RobustReflectionConverter.java:155) hudson.util.RobustReflectionConverter$2.visit(RobustReflectionConverter.java:130) com.thoughtworks.xstream.converters.reflection.PureJavaReflectionProvider.visitSerializableFields(PureJavaReflectionProvider.java:130) hudson.util.RobustReflectionConverter.doMarshal(RobustReflectionConverter.java:115) hudson.util.RobustReflectionConverter.marshal(RobustReflectionConverter.java:89) com.thoughtworks.xstream.core.AbstractReferenceMarshaller.convert(AbstractReferenceMarshaller.java:68) com.thoughtworks.xstream.core.TreeMarshaller.convertAnother(TreeMarshaller.java:78) com.thoughtworks.xstream.core.TreeMarshaller.convertAnother(TreeMarshaller.java:63) com.thoughtworks.xstream.converters.collections.AbstractCollectionConverter.writeItem(AbstractCollectionConverter.java:64) com.thoughtworks.xstream.converters.collections.CollectionConverter.marshal(CollectionConverter.java:55) com.thoughtworks.xstream.core.AbstractReferenceMarshaller.convert(AbstractReferenceMarshaller.java:68) com.thoughtworks.xstream.core.TreeMarshaller.convertAnother(TreeMarshaller.java:78) com.thoughtworks.xstream.core.TreeMarshaller.convertAnother(TreeMarshaller.java:63) hudson.util.RobustReflectionConverter.marshallField(RobustReflectionConverter.java:167) hudson.util.RobustReflectionConverter$2.writeField(RobustReflectionConverter.java:155) hudson.util.RobustReflectionConverter$2.visit(RobustReflectionConverter.java:130) com.thoughtworks.xstream.converters.reflection.PureJavaReflectionProvider.visitSerializableFields(PureJavaReflectionProvider.java:130) hudson.util.RobustReflectionConverter.doMarshal(RobustReflectionConverter.java:115) hudson.util.RobustReflectionConverter.marshal(RobustReflectionConverter.java:89) com.thoughtworks.xstream.core.AbstractReferenceMarshaller.convert(AbstractReferenceMarshaller.java:68) com.thoughtworks.xstream.core.TreeMarshaller.convertAnother(TreeMarshaller.java:78) com.thoughtworks.xstream.core.TreeMarshaller.convertAnother(TreeMarshaller.java:63) com.thoughtworks.xstream.core.TreeMarshaller.start(TreeMarshaller.java:98) com.thoughtworks.xstream.core.AbstractTreeMarshallingStrategy.marshal(AbstractTreeMarshallingStrategy.java:38) com.thoughtworks.xstream.XStream.marshal(XStream.java:837) com.thoughtworks.xstream.XStream.marshal(XStream.java:826) com.thoughtworks.xstream.XStream.toXML(XStream.java:801) hudson.XmlFile.write(XmlFile.java:165) hudson.model.Hudson.save(Hudson.java:2175) hudson.BulkChange.commit(BulkChange.java:113) hudson.model.Hudson.doConfigSubmit(Hudson.java:2377) sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) java.lang.reflect.Method.invoke(Method.java:597) org.kohsuke.stapler.Function$InstanceFunction.invoke(Function.java:185) org.kohsuke.stapler.Function.bindAndInvoke(Function.java:101) org.kohsuke.stapler.Function.bindAndInvokeAndServeResponse(Function.java:54) org.kohsuke.stapler.MetaClass$1.doDispatch(MetaClass.java:74) org.kohsuke.stapler.NameBasedDispatcher.dispatch(NameBasedDispatcher.java:30) org.kohsuke.stapler.Stapler.invoke(Stapler.java:500) org.kohsuke.stapler.Stapler.invoke(Stapler.java:416) org.kohsuke.stapler.Stapler.service(Stapler.java:122) javax.servlet.http.HttpServlet.service(HttpServlet.java:803) hudson.util.PluginServletFilter$1.doFilter(PluginServletFilter.java:94) hudson.util.PluginServletFilter.doFilter(PluginServletFilter.java:86) hudson.security.csrf.CrumbFilter.doFilter(CrumbFilter.java:47) hudson.security.ChainedServletFilter$1.doFilter(ChainedServletFilter.java:84) hudson.security.UnwrapSecurityExceptionFilter.doFilter(UnwrapSecurityExceptionFilter.java:51) hudson.security.ChainedServletFilter$1.doFilter(ChainedServletFilter.java:87) org.acegisecurity.ui.ExceptionTranslationFilter.doFilter(ExceptionTranslationFilter.java:166) hudson.security.ChainedServletFilter$1.doFilter(ChainedServletFilter.java:87) org.acegisecurity.providers.anonymous.AnonymousProcessingFilter.doFilter(AnonymousProcessingFilter.java:125) hudson.security.ChainedServletFilter$1.doFilter(ChainedServletFilter.java:87) org.acegisecurity.ui.rememberme.RememberMeProcessingFilter.doFilter(RememberMeProcessingFilter.java:142) hudson.security.ChainedServletFilter$1.doFilter(ChainedServletFilter.java:87) org.acegisecurity.ui.AbstractProcessingFilter.doFilter(AbstractProcessingFilter.java:271) hudson.security.ChainedServletFilter$1.doFilter(ChainedServletFilter.java:87) org.acegisecurity.ui.basicauth.BasicProcessingFilter.doFilter(BasicProcessingFilter.java:173) hudson.security.ChainedServletFilter$1.doFilter(ChainedServletFilter.java:87) org.acegisecurity.context.HttpSessionContextIntegrationFilter.doFilter(HttpSessionContextIntegrationFilter.java:249) hudson.security.HttpSessionContextIntegrationFilter2.doFilter(HttpSessionContextIntegrationFilter2.java:66) hudson.security.ChainedServletFilter$1.doFilter(ChainedServletFilter.java:87) hudson.security.ChainedServletFilter.doFilter(ChainedServletFilter.java:76) hudson.security.HudsonFilter.doFilter(HudsonFilter.java:164) *root cause* com.thoughtworks.xstream.converters.ConversionException: Could not call sun.net.www.http.KeepAliveCache.writeObject() : Could not call sun.net.www.http.ClientVector.writeObject() : null ---- Debugging information ---- message : Could not call sun.net.www.http.ClientVector.writeObject() cause-exception : java.io.NotSerializableException cause-message : null ------------------------------- message : Could not call sun.net.www.http.KeepAliveCache.writeObject() cause-exception : com.thoughtworks.xstream.converters.ConversionException cause-message : Could not call sun.net.www.http.ClientVector.writeObject() : null ------------------------------- com.thoughtworks.xstream.converters.reflection.SerializationMethodInvoker.callWriteObject(SerializationMethodInvoker.java:104) com.thoughtworks.xstream.converters.reflection.SerializableConverter.doMarshal(SerializableConverter.java:215) com.thoughtworks.xstream.converters.reflection.AbstractReflectionConverter.marshal(AbstractReflectionConverter.java:58) com.thoughtworks.xstream.core.AbstractReferenceMarshaller.convert(AbstractReferenceMarshaller.java:68) com.thoughtworks.xstream.core.TreeMarshaller.convertAnother(TreeMarshaller.java:78) com.thoughtworks.xstream.core.TreeMarshaller.convertAnother(TreeMarshaller.java:63) hudson.util.RobustReflectionConverter.marshallField(RobustReflectionConverter.java:167) hudson.util.RobustReflectionConverter$2.writeField(RobustReflectionConverter.java:155) hudson.util.RobustReflectionConverter$2.visit(RobustReflectionConverter.java:130) com.thoughtworks.xstream.converters.reflection.PureJavaReflectionProvider.visitSerializableFields(PureJavaReflectionProvider.java:130) hudson.util.RobustReflectionConverter.doMarshal(RobustReflectionConverter.java:115) hudson.util.RobustReflectionConverter.marshal(RobustReflectionConverter.java:89) com.thoughtworks.xstream.core.AbstractReferenceMarshaller.convert(AbstractReferenceMarshaller.java:68) com.thoughtworks.xstream.core.TreeMarshaller.convertAnother(TreeMarshaller.java:78) com.thoughtworks.xstream.core.TreeMarshaller.convertAnother(TreeMarshaller.java:63) com.thoughtworks.xstream.converters.collections.AbstractCollectionConverter.writeItem(AbstractCollectionConverter.java:64) com.thoughtworks.xstream.converters.collections.ArrayConverter.marshal(ArrayConverter.java:45) com.thoughtworks.xstream.core.AbstractReferenceMarshaller.convert(AbstractReferenceMarshaller.java:68) com.thoughtworks.xstream.core.TreeMarshaller.convertAnother(TreeMarshaller.java:78) com.thoughtworks.xstream.core.TreeMarshaller.convertAnother(TreeMarshaller.java:63) hudson.util.RobustReflectionConverter.marshallField(RobustReflectionConverter.java:167) hudson.util.RobustReflectionConverter$2.writeField(RobustReflectionConverter.java:155) hudson.util.RobustReflectionConverter$2.visit(RobustReflectionConverter.java:130) com.thoughtworks.xstream.converters.reflection.PureJavaReflectionProvider.visitSerializableFields(PureJavaReflectionProvider.java:130) hudson.util.RobustReflectionConverter.doMarshal(RobustReflectionConverter.java:115) hudson.util.RobustReflectionConverter.marshal(RobustReflectionConverter.java:89) com.thoughtworks.xstream.core.AbstractReferenceMarshaller.convert(AbstractReferenceMarshaller.java:68) com.thoughtworks.xstream.core.TreeMarshaller.convertAnother(TreeMarshaller.java:78) com.thoughtworks.xstream.core.TreeMarshaller.convertAnother(TreeMarshaller.java:63) hudson.util.RobustReflectionConverter.marshallField(RobustReflectionConverter.java:167) hudson.util.RobustReflectionConverter$2.writeField(RobustReflectionConverter.java:155) hudson.util.RobustReflectionConverter$2.visit(RobustReflectionConverter.java:130) com.thoughtworks.xstream.converters.reflection.PureJavaReflectionProvider.visitSerializableFields(PureJavaReflectionProvider.java:130) hudson.util.RobustReflectionConverter.doMarshal(RobustReflectionConverter.java:115) hudson.util.RobustReflectionConverter.marshal(RobustReflectionConverter.java:89) com.thoughtworks.xstream.core.AbstractReferenceMarshaller.convert(AbstractReferenceMarshaller.java:68) com.thoughtworks.xstream.core.TreeMarshaller.convertAnother(TreeMarshaller.java:78) com.thoughtworks.xstream.core.TreeMarshaller.convertAnother(TreeMarshaller.java:63) hudson.util.RobustReflectionConverter.marshallField(RobustReflectionConverter.java:167) hudson.util.RobustReflectionConverter$2.writeField(RobustReflectionConverter.java:155) hudson.util.RobustReflectionConverter$2.visit(RobustReflectionConverter.java:130) com.thoughtworks.xstream.converters.reflection.PureJavaReflectionProvider.visitSerializableFields(PureJavaReflectionProvider.java:130) hudson.util.RobustReflectionConverter.doMarshal(RobustReflectionConverter.java:115) hudson.util.RobustReflectionConverter.marshal(RobustReflectionConverter.java:89) com.thoughtworks.xstream.core.AbstractReferenceMarshaller.convert(AbstractReferenceMarshaller.java:68) com.thoughtworks.xstream.core.TreeMarshaller.convertAnother(TreeMarshaller.java:78) com.thoughtworks.xstream.core.TreeMarshaller.convertAnother(TreeMarshaller.java:63) com.thoughtworks.xstream.converters.collections.AbstractCollectionConverter.writeItem(AbstractCollectionConverter.java:64) com.thoughtworks.xstream.converters.collections.MapConverter.marshal(MapConverter.java:57) com.thoughtworks.xstream.core.AbstractReferenceMarshaller.convert(AbstractReferenceMarshaller.java:68) com.thoughtworks.xstream.core.TreeMarshaller.convertAnother(TreeMarshaller.java:78) com.thoughtworks.xstream.core.TreeMarshaller.convertAnother(TreeMarshaller.java:63) hudson.util.RobustReflectionConverter.marshallField(RobustReflectionConverter.java:167) hudson.util.RobustReflectionConverter$2.writeField(RobustReflectionConverter.java:155) hudson.util.RobustReflectionConverter$2.visit(RobustReflectionConverter.java:130) com.thoughtworks.xstream.converters.reflection.PureJavaReflectionProvider.visitSerializableFields(PureJavaReflectionProvider.java:130) hudson.util.RobustReflectionConverter.doMarshal(RobustReflectionConverter.java:115) hudson.util.RobustReflectionConverter.marshal(RobustReflectionConverter.java:89) com.thoughtworks.xstream.core.AbstractReferenceMarshaller.convert(AbstractReferenceMarshaller.java:68) com.thoughtworks.xstream.core.TreeMarshaller.convertAnother(TreeMarshaller.java:78) com.thoughtworks.xstream.core.TreeMarshaller.convertAnother(TreeMarshaller.java:63) hudson.util.RobustReflectionConverter.marshallField(RobustReflectionConverter.java:167) hudson.util.RobustReflectionConverter$2.writeField(RobustReflectionConverter.java:155) hudson.util.RobustReflectionConverter$2.visit(RobustReflectionConverter.java:130) com.thoughtworks.xstream.converters.reflection.PureJavaReflectionProvider.visitSerializableFields(PureJavaReflectionProvider.java:130) hudson.util.RobustReflectionConverter.doMarshal(RobustReflectionConverter.java:115) hudson.util.RobustReflectionConverter.marshal(RobustReflectionConverter.java:89) com.thoughtworks.xstream.core.AbstractReferenceMarshaller.convert(AbstractReferenceMarshaller.java:68) com.thoughtworks.xstream.core.TreeMarshaller.convertAnother(TreeMarshaller.java:78) com.thoughtworks.xstream.core.TreeMarshaller.convertAnother(TreeMarshaller.java:63) com.thoughtworks.xstream.converters.collections.AbstractCollectionConverter.writeItem(AbstractCollectionConverter.java:64) com.thoughtworks.xstream.converters.collections.MapConverter.marshal(MapConverter.java:57) com.thoughtworks.xstream.core.AbstractReferenceMarshaller.convert(AbstractReferenceMarshaller.java:68) com.thoughtworks.xstream.core.TreeMarshaller.convertAnother(TreeMarshaller.java:78) com.thoughtworks.xstream.core.TreeMarshaller.convertAnother(TreeMarshaller.java:63) hudson.util.RobustReflectionConverter.marshallField(RobustReflectionConverter.java:167) hudson.util.RobustReflectionConverter$2.writeField(RobustReflectionConverter.java:155) hudson.util.RobustReflectionConverter$2.visit(RobustReflectionConverter.java:130) com.thoughtworks.xstream.converters.reflection.PureJavaReflectionProvider.visitSerializableFields(PureJavaReflectionProvider.java:130) hudson.util.RobustReflectionConverter.doMarshal(RobustReflectionConverter.java:115) hudson.util.RobustReflectionConverter.marshal(RobustReflectionConverter.java:89) com.thoughtworks.xstream.core.AbstractReferenceMarshaller.convert(AbstractReferenceMarshaller.java:68) com.thoughtworks.xstream.core.TreeMarshaller.convertAnother(TreeMarshaller.java:78) com.thoughtworks.xstream.core.TreeMarshaller.convertAnother(TreeMarshaller.java:63) com.thoughtworks.xstream.converters.collections.AbstractCollectionConverter.writeItem(AbstractCollectionConverter.java:64) com.thoughtworks.xstream.converters.collections.CollectionConverter.marshal(CollectionConverter.java:55) com.thoughtworks.xstream.core.AbstractReferenceMarshaller.convert(AbstractReferenceMarshaller.java:68) com.thoughtworks.xstream.core.TreeMarshaller.convertAnother(TreeMarshaller.java:78) com.thoughtworks.xstream.core.TreeMarshaller.convertAnother(TreeMarshaller.java:63) hudson.util.RobustReflectionConverter.marshallField(RobustReflectionConverter.java:167) hudson.util.RobustReflectionConverter$2.writeField(RobustReflectionConverter.java:155) hudson.util.RobustReflectionConverter$2.visit(RobustReflectionConverter.java:130) com.thoughtworks.xstream.converters.reflection.PureJavaReflectionProvider.visitSerializableFields(PureJavaReflectionProvider.java:130) hudson.util.RobustReflectionConverter.doMarshal(RobustReflectionConverter.java:115) hudson.util.RobustReflectionConverter.marshal(RobustReflectionConverter.java:89) com.thoughtworks.xstream.core.AbstractReferenceMarshaller.convert(AbstractReferenceMarshaller.java:68) com.thoughtworks.xstream.core.TreeMarshaller.convertAnother(TreeMarshaller.java:78) com.thoughtworks.xstream.core.TreeMarshaller.convertAnother(TreeMarshaller.java:63) com.thoughtworks.xstream.core.TreeMarshaller.start(TreeMarshaller.java:98) com.thoughtworks.xstream.core.AbstractTreeMarshallingStrategy.marshal(AbstractTreeMarshallingStrategy.java:38) com.thoughtworks.xstream.XStream.marshal(XStream.java:837) com.thoughtworks.xstream.XStream.marshal(XStream.java:826) com.thoughtworks.xstream.XStream.toXML(XStream.java:801) hudson.XmlFile.write(XmlFile.java:165) hudson.model.Hudson.save(Hudson.java:2175) hudson.BulkChange.commit(BulkChange.java:113) hudson.model.Hudson.doConfigSubmit(Hudson.java:2377) sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) java.lang.reflect.Method.invoke(Method.java:597) org.kohsuke.stapler.Function$InstanceFunction.invoke(Function.java:185) org.kohsuke.stapler.Function.bindAndInvoke(Function.java:101) org.kohsuke.stapler.Function.bindAndInvokeAndServeResponse(Function.java:54) org.kohsuke.stapler.MetaClass$1.doDispatch(MetaClass.java:74) org.kohsuke.stapler.NameBasedDispatcher.dispatch(NameBasedDispatcher.java:30) org.kohsuke.stapler.Stapler.invoke(Stapler.java:500) org.kohsuke.stapler.Stapler.invoke(Stapler.java:416) org.kohsuke.stapler.Stapler.service(Stapler.java:122) javax.servlet.http.HttpServlet.service(HttpServlet.java:803) hudson.util.PluginServletFilter$1.doFilter(PluginServletFilter.java:94) hudson.util.PluginServletFilter.doFilter(PluginServletFilter.java:86) hudson.security.csrf.CrumbFilter.doFilter(CrumbFilter.java:47) hudson.security.ChainedServletFilter$1.doFilter(ChainedServletFilter.java:84) hudson.security.UnwrapSecurityExceptionFilter.doFilter(UnwrapSecurityExceptionFilter.java:51) hudson.security.ChainedServletFilter$1.doFilter(ChainedServletFilter.java:87) org.acegisecurity.ui.ExceptionTranslationFilter.doFilter(ExceptionTranslationFilter.java:166) hudson.security.ChainedServletFilter$1.doFilter(ChainedServletFilter.java:87) org.acegisecurity.providers.anonymous.AnonymousProcessingFilter.doFilter(AnonymousProcessingFilter.java:125) hudson.security.ChainedServletFilter$1.doFilter(ChainedServletFilter.java:87) org.acegisecurity.ui.rememberme.RememberMeProcessingFilter.doFilter(RememberMeProcessingFilter.java:142) hudson.security.ChainedServletFilter$1.doFilter(ChainedServletFilter.java:87) org.acegisecurity.ui.AbstractProcessingFilter.doFilter(AbstractProcessingFilter.java:271) hudson.security.ChainedServletFilter$1.doFilter(ChainedServletFilter.java:87) org.acegisecurity.ui.basicauth.BasicProcessingFilter.doFilter(BasicProcessingFilter.java:173) hudson.security.ChainedServletFilter$1.doFilter(ChainedServletFilter.java:87) org.acegisecurity.context.HttpSessionContextIntegrationFilter.doFilter(HttpSessionContextIntegrationFilter.java:249) hudson.security.HttpSessionContextIntegrationFilter2.doFilter(HttpSessionContextIntegrationFilter2.java:66) hudson.security.ChainedServletFilter$1.doFilter(ChainedServletFilter.java:87) hudson.security.ChainedServletFilter.doFilter(ChainedServletFilter.java:76) hudson.security.HudsonFilter.doFilter(HudsonFilter.java:164) *root cause* com.thoughtworks.xstream.converters.ConversionException: Could not call sun.net.www.http.ClientVector.writeObject() : null ---- Debugging information ---- message : Could not call sun.net.www.http.ClientVector.writeObject() cause-exception : java.io.NotSerializableException cause-message : null ------------------------------- com.thoughtworks.xstream.converters.reflection.SerializationMethodInvoker.callWriteObject(SerializationMethodInvoker.java:104) com.thoughtworks.xstream.converters.reflection.SerializableConverter.doMarshal(SerializableConverter.java:215) com.thoughtworks.xstream.converters.reflection.AbstractReflectionConverter.marshal(AbstractReflectionConverter.java:58) com.thoughtworks.xstream.core.AbstractReferenceMarshaller.convert(AbstractReferenceMarshaller.java:68) com.thoughtworks.xstream.core.TreeMarshaller.convertAnother(TreeMarshaller.java:78) com.thoughtworks.xstream.core.TreeMarshaller.convertAnother(TreeMarshaller.java:63) com.thoughtworks.xstream.converters.reflection.SerializableConverter$1.writeToStream(SerializableConverter.java:104) com.thoughtworks.xstream.core.util.CustomObjectOutputStream.writeObjectOverride(CustomObjectOutputStream.java:84) java.io.ObjectOutputStream.writeObject(ObjectOutputStream.java:322) java.util.Hashtable.writeObject(Hashtable.java:824) sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) java.lang.reflect.Method.invoke(Method.java:597) com.thoughtworks.xstream.converters.reflection.SerializationMethodInvoker.callWriteObject(SerializationMethodInvoker.java:100) com.thoughtworks.xstream.converters.reflection.SerializableConverter.doMarshal(SerializableConverter.java:215) com.thoughtworks.xstream.converters.reflection.AbstractReflectionConverter.marshal(AbstractReflectionConverter.java:58) com.thoughtworks.xstream.core.AbstractReferenceMarshaller.convert(AbstractReferenceMarshaller.java:68) com.thoughtworks.xstream.core.TreeMarshaller.convertAnother(TreeMarshaller.java:78) com.thoughtworks.xstream.core.TreeMarshaller.convertAnother(TreeMarshaller.java:63) hudson.util.RobustReflectionConverter.marshallField(RobustReflectionConverter.java:167) hudson.util.RobustReflectionConverter$2.writeField(RobustReflectionConverter.java:155) hudson.util.RobustReflectionConverter$2.visit(RobustReflectionConverter.java:130) com.thoughtworks.xstream.converters.reflection.PureJavaReflectionProvider.visitSerializableFields(PureJavaReflectionProvider.java:130) hudson.util.RobustReflectionConverter.doMarshal(RobustReflectionConverter.java:115) hudson.util.RobustReflectionConverter.marshal(RobustReflectionConverter.java:89) com.thoughtworks.xstream.core.AbstractReferenceMarshaller.convert(AbstractReferenceMarshaller.java:68) com.thoughtworks.xstream.core.TreeMarshaller.convertAnother(TreeMarshaller.java:78) com.thoughtworks.xstream.core.TreeMarshaller.convertAnother(TreeMarshaller.java:63) com.thoughtworks.xstream.converters.collections.AbstractCollectionConverter.writeItem(AbstractCollectionConverter.java:64) com.thoughtworks.xstream.converters.collections.ArrayConverter.marshal(ArrayConverter.java:45) com.thoughtworks.xstream.core.AbstractReferenceMarshaller.convert(AbstractReferenceMarshaller.java:68) com.thoughtworks.xstream.core.TreeMarshaller.convertAnother(TreeMarshaller.java:78) com.thoughtworks.xstream.core.TreeMarshaller.convertAnother(TreeMarshaller.java:63) hudson.util.RobustReflectionConverter.marshallField(RobustReflectionConverter.java:167) hudson.util.RobustReflectionConverter$2.writeField(RobustReflectionConverter.java:155) hudson.util.RobustReflectionConverter$2.visit(RobustReflectionConverter.java:130) com.thoughtworks.xstream.converters.reflection.PureJavaReflectionProvider.visitSerializableFields(PureJavaReflectionProvider.java:130) hudson.util.RobustReflectionConverter.doMarshal(RobustReflectionConverter.java:115) hudson.util.RobustReflectionConverter.marshal(RobustReflectionConverter.java:89) com.thoughtworks.xstream.core.AbstractReferenceMarshaller.convert(AbstractReferenceMarshaller.java:68) com.thoughtworks.xstream.core.TreeMarshaller.convertAnother(TreeMarshaller.java:78) com.thoughtworks.xstream.core.TreeMarshaller.convertAnother(TreeMarshaller.java:63) hudson.util.RobustReflectionConverter.marshallField(RobustReflectionConverter.java:167) hudson.util.RobustReflectionConverter$2.writeField(RobustReflectionConverter.java:155) hudson.util.RobustReflectionConverter$2.visit(RobustReflectionConverter.java:130) com.thoughtworks.xstream.converters.reflection.PureJavaReflectionProvider.visitSerializableFields(PureJavaReflectionProvider.java:130) hudson.util.RobustReflectionConverter.doMarshal(RobustReflectionConverter.java:115) hudson.util.RobustReflectionConverter.marshal(RobustReflectionConverter.java:89) com.thoughtworks.xstream.core.AbstractReferenceMarshaller.convert(AbstractReferenceMarshaller.java:68) com.thoughtworks.xstream.core.TreeMarshaller.convertAnother(TreeMarshaller.java:78) com.thoughtworks.xstream.core.TreeMarshaller.convertAnother(TreeMarshaller.java:63) hudson.util.RobustReflectionConverter.marshallField(RobustReflectionConverter.java:167) hudson.util.RobustReflectionConverter$2.writeField(RobustReflectionConverter.java:155) hudson.util.RobustReflectionConverter$2.visit(RobustReflectionConverter.java:130) com.thoughtworks.xstream.converters.reflection.PureJavaReflectionProvider.visitSerializableFields(PureJavaReflectionProvider.java:130) hudson.util.RobustReflectionConverter.doMarshal(RobustReflectionConverter.java:115) hudson.util.RobustReflectionConverter.marshal(RobustReflectionConverter.java:89) com.thoughtworks.xstream.core.AbstractReferenceMarshaller.convert(AbstractReferenceMarshaller.java:68) com.thoughtworks.xstream.core.TreeMarshaller.convertAnother(TreeMarshaller.java:78) com.thoughtworks.xstream.core.TreeMarshaller.convertAnother(TreeMarshaller.java:63) com.thoughtworks.xstream.converters.collections.AbstractCollectionConverter.writeItem(AbstractCollectionConverter.java:64) com.thoughtworks.xstream.converters.collections.MapConverter.marshal(MapConverter.java:57) com.thoughtworks.xstream.core.AbstractReferenceMarshaller.convert(AbstractReferenceMarshaller.java:68) com.thoughtworks.xstream.core.TreeMarshaller.convertAnother(TreeMarshaller.java:78) com.thoughtworks.xstream.core.TreeMarshaller.convertAnother(TreeMarshaller.java:63) hudson.util.RobustReflectionConverter.marshallField(RobustReflectionConverter.java:167) hudson.util.RobustReflectionConverter$2.writeField(RobustReflectionConverter.java:155) hudson.util.RobustReflectionConverter$2.visit(RobustReflectionConverter.java:130) com.thoughtworks.xstream.converters.reflection.PureJavaReflectionProvider.visitSerializableFields(PureJavaReflectionProvider.java:130) hudson.util.RobustReflectionConverter.doMarshal(RobustReflectionConverter.java:115) hudson.util.RobustReflectionConverter.marshal(RobustReflectionConverter.java:89) com.thoughtworks.xstream.core.AbstractReferenceMarshaller.convert(AbstractReferenceMarshaller.java:68) com.thoughtworks.xstream.core.TreeMarshaller.convertAnother(TreeMarshaller.java:78) com.thoughtworks.xstream.core.TreeMarshaller.convertAnother(TreeMarshaller.java:63) hudson.util.RobustReflectionConverter.marshallField(RobustReflectionConverter.java:167) hudson.util.RobustReflectionConverter$2.writeField(RobustReflectionConverter.java:155) hudson.util.RobustReflectionConverter$2.visit(RobustReflectionConverter.java:130) com.thoughtworks.xstream.converters.reflection.PureJavaReflectionProvider.visitSerializableFields(PureJavaReflectionProvider.java:130) hudson.util.RobustReflectionConverter.doMarshal(RobustReflectionConverter.java:115) hudson.util.RobustReflectionConverter.marshal(RobustReflectionConverter.java:89) com.thoughtworks.xstream.core.AbstractReferenceMarshaller.convert(AbstractReferenceMarshaller.java:68) com.thoughtworks.xstream.core.TreeMarshaller.convertAnother(TreeMarshaller.java:78) com.thoughtworks.xstream.core.TreeMarshaller.convertAnother(TreeMarshaller.java:63) com.thoughtworks.xstream.converters.collections.AbstractCollectionConverter.writeItem(AbstractCollectionConverter.java:64) com.thoughtworks.xstream.converters.collections.MapConverter.marshal(MapConverter.java:57) com.thoughtworks.xstream.core.AbstractReferenceMarshaller.convert(AbstractReferenceMarshaller.java:68) com.thoughtworks.xstream.core.TreeMarshaller.convertAnother(TreeMarshaller.java:78) com.thoughtworks.xstream.core.TreeMarshaller.convertAnother(TreeMarshaller.java:63) hudson.util.RobustReflectionConverter.marshallField(RobustReflectionConverter.java:167) hudson.util.RobustReflectionConverter$2.writeField(RobustReflectionConverter.java:155) hudson.util.RobustReflectionConverter$2.visit(RobustReflectionConverter.java:130) com.thoughtworks.xstream.converters.reflection.PureJavaReflectionProvider.visitSerializableFields(PureJavaReflectionProvider.java:130) hudson.util.RobustReflectionConverter.doMarshal(RobustReflectionConverter.java:115) hudson.util.RobustReflectionConverter.marshal(RobustReflectionConverter.java:89) com.thoughtworks.xstream.core.AbstractReferenceMarshaller.convert(AbstractReferenceMarshaller.java:68) com.thoughtworks.xstream.core.TreeMarshaller.convertAnother(TreeMarshaller.java:78) com.thoughtworks.xstream.core.TreeMarshaller.convertAnother(TreeMarshaller.java:63) com.thoughtworks.xstream.converters.collections.AbstractCollectionConverter.writeItem(AbstractCollectionConverter.java:64) com.thoughtworks.xstream.converters.collections.CollectionConverter.marshal(CollectionConverter.java:55) com.thoughtworks.xstream.core.AbstractReferenceMarshaller.convert(AbstractReferenceMarshaller.java:68) com.thoughtworks.xstream.core.TreeMarshaller.convertAnother(TreeMarshaller.java:78) com.thoughtworks.xstream.core.TreeMarshaller.convertAnother(TreeMarshaller.java:63) hudson.util.RobustReflectionConverter.marshallField(RobustReflectionConverter.java:167) hudson.util.RobustReflectionConverter$2.writeField(RobustReflectionConverter.java:155) hudson.util.RobustReflectionConverter$2.visit(RobustReflectionConverter.java:130) com.thoughtworks.xstream.converters.reflection.PureJavaReflectionProvider.visitSerializableFields(PureJavaReflectionProvider.java:130) hudson.util.RobustReflectionConverter.doMarshal(RobustReflectionConverter.java:115) hudson.util.RobustReflectionConverter.marshal(RobustReflectionConverter.java:89) com.thoughtworks.xstream.core.AbstractReferenceMarshaller.convert(AbstractReferenceMarshaller.java:68) com.thoughtworks.xstream.core.TreeMarshaller.convertAnother(TreeMarshaller.java:78) com.thoughtworks.xstream.core.TreeMarshaller.convertAnother(TreeMarshaller.java:63) com.thoughtworks.xstream.core.TreeMarshaller.start(TreeMarshaller.java:98) com.thoughtworks.xstream.core.AbstractTreeMarshallingStrategy.marshal(AbstractTreeMarshallingStrategy.java:38) com.thoughtworks.xstream.XStream.marshal(XStream.java:837) com.thoughtworks.xstream.XStream.marshal(XStream.java:826) com.thoughtworks.xstream.XStream.toXML(XStream.java:801) hudson.XmlFile.write(XmlFile.java:165) hudson.model.Hudson.save(Hudson.java:2175) hudson.BulkChange.commit(BulkChange.java:113) hudson.model.Hudson.doConfigSubmit(Hudson.java:2377) sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) java.lang.reflect.Method.invoke(Method.java:597) org.kohsuke.stapler.Function$InstanceFunction.invoke(Function.java:185) org.kohsuke.stapler.Function.bindAndInvoke(Function.java:101) org.kohsuke.stapler.Function.bindAndInvokeAndServeResponse(Function.java:54) org.kohsuke.stapler.MetaClass$1.doDispatch(MetaClass.java:74) org.kohsuke.stapler.NameBasedDispatcher.dispatch(NameBasedDispatcher.java:30) org.kohsuke.stapler.Stapler.invoke(Stapler.java:500) org.kohsuke.stapler.Stapler.invoke(Stapler.java:416) org.kohsuke.stapler.Stapler.service(Stapler.java:122) javax.servlet.http.HttpServlet.service(HttpServlet.java:803) hudson.util.PluginServletFilter$1.doFilter(PluginServletFilter.java:94) hudson.util.PluginServletFilter.doFilter(PluginServletFilter.java:86) hudson.security.csrf.CrumbFilter.doFilter(CrumbFilter.java:47) hudson.security.ChainedServletFilter$1.doFilter(ChainedServletFilter.java:84) hudson.security.UnwrapSecurityExceptionFilter.doFilter(UnwrapSecurityExceptionFilter.java:51) hudson.security.ChainedServletFilter$1.doFilter(ChainedServletFilter.java:87) org.acegisecurity.ui.ExceptionTranslationFilter.doFilter(ExceptionTranslationFilter.java:166) hudson.security.ChainedServletFilter$1.doFilter(ChainedServletFilter.java:87) org.acegisecurity.providers.anonymous.AnonymousProcessingFilter.doFilter(AnonymousProcessingFilter.java:125) hudson.security.ChainedServletFilter$1.doFilter(ChainedServletFilter.java:87) org.acegisecurity.ui.rememberme.RememberMeProcessingFilter.doFilter(RememberMeProcessingFilter.java:142) hudson.security.ChainedServletFilter$1.doFilter(ChainedServletFilter.java:87) org.acegisecurity.ui.AbstractProcessingFilter.doFilter(AbstractProcessingFilter.java:271) hudson.security.ChainedServletFilter$1.doFilter(ChainedServletFilter.java:87) org.acegisecurity.ui.basicauth.BasicProcessingFilter.doFilter(BasicProcessingFilter.java:173) hudson.security.ChainedServletFilter$1.doFilter(ChainedServletFilter.java:87) org.acegisecurity.context.HttpSessionContextIntegrationFilter.doFilter(HttpSessionContextIntegrationFilter.java:249) hudson.security.HttpSessionContextIntegrationFilter2.doFilter(HttpSessionContextIntegrationFilter2.java:66) hudson.security.ChainedServletFilter$1.doFilter(ChainedServletFilter.java:87) hudson.security.ChainedServletFilter.doFilter(ChainedServletFilter.java:76) hudson.security.HudsonFilter.doFilter(HudsonFilter.java:164) *root cause* java.io.NotSerializableException sun.net.www.http.ClientVector.writeObject(KeepAliveCache.java:263) sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) java.lang.reflect.Method.invoke(Method.java:597) com.thoughtworks.xstream.converters.reflection.SerializationMethodInvoker.callWriteObject(SerializationMethodInvoker.java:100) com.thoughtworks.xstream.converters.reflection.SerializableConverter.doMarshal(SerializableConverter.java:215) com.thoughtworks.xstream.converters.reflection.AbstractReflectionConverter.marshal(AbstractReflectionConverter.java:58) com.thoughtworks.xstream.core.AbstractReferenceMarshaller.convert(AbstractReferenceMarshaller.java:68) com.thoughtworks.xstream.core.TreeMarshaller.convertAnother(TreeMarshaller.java:78) com.thoughtworks.xstream.core.TreeMarshaller.convertAnother(TreeMarshaller.java:63) com.thoughtworks.xstream.converters.reflection.SerializableConverter$1.writeToStream(SerializableConverter.java:104) com.thoughtworks.xstream.core.util.CustomObjectOutputStream.writeObjectOverride(CustomObjectOutputStream.java:84) java.io.ObjectOutputStream.writeObject(ObjectOutputStream.java:322) java.util.Hashtable.writeObject(Hashtable.java:824) sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) java.lang.reflect.Method.invoke(Method.java:597) com.thoughtworks.xstream.converters.reflection.SerializationMethodInvoker.callWriteObject(SerializationMethodInvoker.java:100) com.thoughtworks.xstream.converters.reflection.SerializableConverter.doMarshal(SerializableConverter.java:215) com.thoughtworks.xstream.converters.reflection.AbstractReflectionConverter.marshal(AbstractReflectionConverter.java:58) com.thoughtworks.xstream.core.AbstractReferenceMarshaller.convert(AbstractReferenceMarshaller.java:68) com.thoughtworks.xstream.core.TreeMarshaller.convertAnother(TreeMarshaller.java:78) com.thoughtworks.xstream.core.TreeMarshaller.convertAnother(TreeMarshaller.java:63) hudson.util.RobustReflectionConverter.marshallField(RobustReflectionConverter.java:167) hudson.util.RobustReflectionConverter$2.writeField(RobustReflectionConverter.java:155) hudson.util.RobustReflectionConverter$2.visit(RobustReflectionConverter.java:130) com.thoughtworks.xstream.converters.reflection.PureJavaReflectionProvider.visitSerializableFields(PureJavaReflectionProvider.java:130) hudson.util.RobustReflectionConverter.doMarshal(RobustReflectionConverter.java:115) hudson.util.RobustReflectionConverter.marshal(RobustReflectionConverter.java:89) com.thoughtworks.xstream.core.AbstractReferenceMarshaller.convert(AbstractReferenceMarshaller.java:68) com.thoughtworks.xstream.core.TreeMarshaller.convertAnother(TreeMarshaller.java:78) com.thoughtworks.xstream.core.TreeMarshaller.convertAnother(TreeMarshaller.java:63) com.thoughtworks.xstream.converters.collections.AbstractCollectionConverter.writeItem(AbstractCollectionConverter.java:64) com.thoughtworks.xstream.converters.collections.ArrayConverter.marshal(ArrayConverter.java:45) com.thoughtworks.xstream.core.AbstractReferenceMarshaller.convert(AbstractReferenceMarshaller.java:68) com.thoughtworks.xstream.core.TreeMarshaller.convertAnother(TreeMarshaller.java:78) com.thoughtworks.xstream.core.TreeMarshaller.convertAnother(TreeMarshaller.java:63) hudson.util.RobustReflectionConverter.marshallField(RobustReflectionConverter.java:167) hudson.util.RobustReflectionConverter$2.writeField(RobustReflectionConverter.java:155) hudson.util.RobustReflectionConverter$2.visit(RobustReflectionConverter.java:130) com.thoughtworks.xstream.converters.reflection.PureJavaReflectionProvider.visitSerializableFields(PureJavaReflectionProvider.java:130) hudson.util.RobustReflectionConverter.doMarshal(RobustReflectionConverter.java:115) hudson.util.RobustReflectionConverter.marshal(RobustReflectionConverter.java:89) com.thoughtworks.xstream.core.AbstractReferenceMarshaller.convert(AbstractReferenceMarshaller.java:68) com.thoughtworks.xstream.core.TreeMarshaller.convertAnother(TreeMarshaller.java:78) com.thoughtworks.xstream.core.TreeMarshaller.convertAnother(TreeMarshaller.java:63) hudson.util.RobustReflectionConverter.marshallField(RobustReflectionConverter.java:167) hudson.util.RobustReflectionConverter$2.writeField(RobustReflectionConverter.java:155) hudson.util.RobustReflectionConverter$2.visit(RobustReflectionConverter.java:130) com.thoughtworks.xstream.converters.reflection.PureJavaReflectionProvider.visitSerializableFields(PureJavaReflectionProvider.java:130) hudson.util.RobustReflectionConverter.doMarshal(RobustReflectionConverter.java:115) hudson.util.RobustReflectionConverter.marshal(RobustReflectionConverter.java:89) com.thoughtworks.xstream.core.AbstractReferenceMarshaller.convert(AbstractReferenceMarshaller.java:68) com.thoughtworks.xstream.core.TreeMarshaller.convertAnother(TreeMarshaller.java:78) com.thoughtworks.xstream.core.TreeMarshaller.convertAnother(TreeMarshaller.java:63) hudson.util.RobustReflectionConverter.marshallField(RobustReflectionConverter.java:167) hudson.util.RobustReflectionConverter$2.writeField(RobustReflectionConverter.java:155) hudson.util.RobustReflectionConverter$2.visit(RobustReflectionConverter.java:130) com.thoughtworks.xstream.converters.reflection.PureJavaReflectionProvider.visitSerializableFields(PureJavaReflectionProvider.java:130) hudson.util.RobustReflectionConverter.doMarshal(RobustReflectionConverter.java:115) hudson.util.RobustReflectionConverter.marshal(RobustReflectionConverter.java:89) com.thoughtworks.xstream.core.AbstractReferenceMarshaller.convert(AbstractReferenceMarshaller.java:68) com.thoughtworks.xstream.core.TreeMarshaller.convertAnother(TreeMarshaller.java:78) com.thoughtworks.xstream.core.TreeMarshaller.convertAnother(TreeMarshaller.java:63) com.thoughtworks.xstream.converters.collections.AbstractCollectionConverter.writeItem(AbstractCollectionConverter.java:64) com.thoughtworks.xstream.converters.collections.MapConverter.marshal(MapConverter.java:57) com.thoughtworks.xstream.core.AbstractReferenceMarshaller.convert(AbstractReferenceMarshaller.java:68) com.thoughtworks.xstream.core.TreeMarshaller.convertAnother(TreeMarshaller.java:78) com.thoughtworks.xstream.core.TreeMarshaller.convertAnother(TreeMarshaller.java:63) hudson.util.RobustReflectionConverter.marshallField(RobustReflectionConverter.java:167) hudson.util.RobustReflectionConverter$2.writeField(RobustReflectionConverter.java:155) hudson.util.RobustReflectionConverter$2.visit(RobustReflectionConverter.java:130) com.thoughtworks.xstream.converters.reflection.PureJavaReflectionProvider.visitSerializableFields(PureJavaReflectionProvider.java:130) hudson.util.RobustReflectionConverter.doMarshal(RobustReflectionConverter.java:115) hudson.util.RobustReflectionConverter.marshal(RobustReflectionConverter.java:89) com.thoughtworks.xstream.core.AbstractReferenceMarshaller.convert(AbstractReferenceMarshaller.java:68) com.thoughtworks.xstream.core.TreeMarshaller.convertAnother(TreeMarshaller.java:78) com.thoughtworks.xstream.core.TreeMarshaller.convertAnother(TreeMarshaller.java:63) hudson.util.RobustReflectionConverter.marshallField(RobustReflectionConverter.java:167) hudson.util.RobustReflectionConverter$2.writeField(RobustReflectionConverter.java:155) hudson.util.RobustReflectionConverter$2.visit(RobustReflectionConverter.java:130) com.thoughtworks.xstream.converters.reflection.PureJavaReflectionProvider.visitSerializableFields(PureJavaReflectionProvider.java:130) hudson.util.RobustReflectionConverter.doMarshal(RobustReflectionConverter.java:115) hudson.util.RobustReflectionConverter.marshal(RobustReflectionConverter.java:89) com.thoughtworks.xstream.core.AbstractReferenceMarshaller.convert(AbstractReferenceMarshaller.java:68) com.thoughtworks.xstream.core.TreeMarshaller.convertAnother(TreeMarshaller.java:78) com.thoughtworks.xstream.core.TreeMarshaller.convertAnother(TreeMarshaller.java:63) com.thoughtworks.xstream.converters.collections.AbstractCollectionConverter.writeItem(AbstractCollectionConverter.java:64) com.thoughtworks.xstream.converters.collections.MapConverter.marshal(MapConverter.java:57) com.thoughtworks.xstream.core.AbstractReferenceMarshaller.convert(AbstractReferenceMarshaller.java:68) com.thoughtworks.xstream.core.TreeMarshaller.convertAnother(TreeMarshaller.java:78) com.thoughtworks.xstream.core.TreeMarshaller.convertAnother(TreeMarshaller.java:63) hudson.util.RobustReflectionConverter.marshallField(RobustReflectionConverter.java:167) hudson.util.RobustReflectionConverter$2.writeField(RobustReflectionConverter.java:155) hudson.util.RobustReflectionConverter$2.visit(RobustReflectionConverter.java:130) com.thoughtworks.xstream.converters.reflection.PureJavaReflectionProvider.visitSerializableFields(PureJavaReflectionProvider.java:130) hudson.util.RobustReflectionConverter.doMarshal(RobustReflectionConverter.java:115) hudson.util.RobustReflectionConverter.marshal(RobustReflectionConverter.java:89) com.thoughtworks.xstream.core.AbstractReferenceMarshaller.convert(AbstractReferenceMarshaller.java:68) com.thoughtworks.xstream.core.TreeMarshaller.convertAnother(TreeMarshaller.java:78) com.thoughtworks.xstream.core.TreeMarshaller.convertAnother(TreeMarshaller.java:63) com.thoughtworks.xstream.converters.collections.AbstractCollectionConverter.writeItem(AbstractCollectionConverter.java:64) com.thoughtworks.xstream.converters.collections.CollectionConverter.marshal(CollectionConverter.java:55) com.thoughtworks.xstream.core.AbstractReferenceMarshaller.convert(AbstractReferenceMarshaller.java:68) com.thoughtworks.xstream.core.TreeMarshaller.convertAnother(TreeMarshaller.java:78) com.thoughtworks.xstream.core.TreeMarshaller.convertAnother(TreeMarshaller.java:63) hudson.util.RobustReflectionConverter.marshallField(RobustReflectionConverter.java:167) hudson.util.RobustReflectionConverter$2.writeField(RobustReflectionConverter.java:155) hudson.util.RobustReflectionConverter$2.visit(RobustReflectionConverter.java:130) com.thoughtworks.xstream.converters.reflection.PureJavaReflectionProvider.visitSerializableFields(PureJavaReflectionProvider.java:130) hudson.util.RobustReflectionConverter.doMarshal(RobustReflectionConverter.java:115) hudson.util.RobustReflectionConverter.marshal(RobustReflectionConverter.java:89) com.thoughtworks.xstream.core.AbstractReferenceMarshaller.convert(AbstractReferenceMarshaller.java:68) com.thoughtworks.xstream.core.TreeMarshaller.convertAnother(TreeMarshaller.java:78) com.thoughtworks.xstream.core.TreeMarshaller.convertAnother(TreeMarshaller.java:63) com.thoughtworks.xstream.core.TreeMarshaller.start(TreeMarshaller.java:98) com.thoughtworks.xstream.core.AbstractTreeMarshallingStrategy.marshal(AbstractTreeMarshallingStrategy.java:38) com.thoughtworks.xstream.XStream.marshal(XStream.java:837) com.thoughtworks.xstream.XStream.marshal(XStream.java:826) com.thoughtworks.xstream.XStream.toXML(XStream.java:801) hudson.XmlFile.write(XmlFile.java:165) hudson.model.Hudson.save(Hudson.java:2175) hudson.BulkChange.commit(BulkChange.java:113) hudson.model.Hudson.doConfigSubmit(Hudson.java:2377) sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) java.lang.reflect.Method.invoke(Method.java:597) org.kohsuke.stapler.Function$InstanceFunction.invoke(Function.java:185) org.kohsuke.stapler.Function.bindAndInvoke(Function.java:101) org.kohsuke.stapler.Function.bindAndInvokeAndServeResponse(Function.java:54) org.kohsuke.stapler.MetaClass$1.doDispatch(MetaClass.java:74) org.kohsuke.stapler.NameBasedDispatcher.dispatch(NameBasedDispatcher.java:30) org.kohsuke.stapler.Stapler.invoke(Stapler.java:500) org.kohsuke.stapler.Stapler.invoke(Stapler.java:416) org.kohsuke.stapler.Stapler.service(Stapler.java:122) javax.servlet.http.HttpServlet.service(HttpServlet.java:803) hudson.util.PluginServletFilter$1.doFilter(PluginServletFilter.java:94) hudson.util.PluginServletFilter.doFilter(PluginServletFilter.java:86) hudson.security.csrf.CrumbFilter.doFilter(CrumbFilter.java:47) hudson.security.ChainedServletFilter$1.doFilter(ChainedServletFilter.java:84) hudson.security.UnwrapSecurityExceptionFilter.doFilter(UnwrapSecurityExceptionFilter.java:51) hudson.security.ChainedServletFilter$1.doFilter(ChainedServletFilter.java:87) org.acegisecurity.ui.ExceptionTranslationFilter.doFilter(ExceptionTranslationFilter.java:166) hudson.security.ChainedServletFilter$1.doFilter(ChainedServletFilter.java:87) org.acegisecurity.providers.anonymous.AnonymousProcessingFilter.doFilter(AnonymousProcessingFilter.java:125) hudson.security.ChainedServletFilter$1.doFilter(ChainedServletFilter.java:87) org.acegisecurity.ui.rememberme.RememberMeProcessingFilter.doFilter(RememberMeProcessingFilter.java:142) hudson.security.ChainedServletFilter$1.doFilter(ChainedServletFilter.java:87) org.acegisecurity.ui.AbstractProcessingFilter.doFilter(AbstractProcessingFilter.java:271) hudson.security.ChainedServletFilter$1.doFilter(ChainedServletFilter.java:87) org.acegisecurity.ui.basicauth.BasicProcessingFilter.doFilter(BasicProcessingFilter.java:173) hudson.security.ChainedServletFilter$1.doFilter(ChainedServletFilter.java:87) org.acegisecurity.context.HttpSessionContextIntegrationFilter.doFilter(HttpSessionContextIntegrationFilter.java:249) hudson.security.HttpSessionContextIntegrationFilter2.doFilter(HttpSessionContextIntegrationFilter2.java:66) hudson.security.ChainedServletFilter$1.doFilter(ChainedServletFilter.java:87) hudson.security.ChainedServletFilter.doFilter(ChainedServletFilter.java:76) hudson.security.HudsonFilter.doFilter(HudsonFilter.java:164) *note* _The full stack trace of the root cause is available in the Apache Tomcat/5.5.25 logs._ ------------------------------------------------------------------------ Apache Tomcat/5.5.25