javax.servlet.ServletException

java.lang.RuntimeException: Failed to instantiate class hudson.slaves.DumbSlave from {"name":"Perm-Parallel Build Node (i-414661ff)","nodeDescription":"","numExecutors":"1","remoteFS":"/opt/jenkins","labelString":"","mode":"NORMAL","":["hudson.plugins.sshslaves.SSHLauncher","hudson.slaves.RetentionStrategy$Always"],"launcher":{"stapler-class":"hudson.plugins.sshslaves.SSHLauncher","$class":"hudson.plugins.sshslaves.SSHLauncher","host":"10.103.130.125","credentialsId":"716c03d8-744d-41ad-b2ed-06b62ef3f125","port":"22","javaPath":"","jvmOptions":"","prefixStartSlaveCmd":"","suffixStartSlaveCmd":"","launchTimeoutSeconds":"","maxNumRetries":"","retryWaitTime":""},"retentionStrategy":{"stapler-class":"hudson.slaves.RetentionStrategy$Always","$class":"hudson.slaves.RetentionStrategy$Always"},"nodeProperties":{"stapler-class-bag":"true"},"type":"hudson.slaves.DumbSlave"}

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Solutions on the web3706

  • via Jenkins JIRA by Charese Williams, 1 year ago
    java.lang.RuntimeException: Failed to instantiate class hudson.slaves.DumbSlave from {"name":"Perm-Parallel Build Node (i-414661ff)","nodeDescription":"","numExecutors":"1","remoteFS":"/opt/jenkins","labelString":"","mode":"NORMAL
  • via Jenkins JIRA by Charese Williams, 11 months ago
    java.lang.RuntimeException: Failed to instantiate class hudson.slaves.DumbSlave from {"name":"Perm-Parallel Build Node (i-414661ff)","nodeDescription":"","numExecutors":"1","remoteFS":"/opt/jenkins","labelString":"","mode":"NORMAL
  • ","javaPath":"","jvmOptions":"","prefixStartSlaveCmd":"","suffixStartSlaveCmd":"","launchTimeoutSeconds":"","maxNumRetries":"","retryWaitTime":""},"retentionStrategy":{"stapler-class":"hudson.slaves.RetentionStrategy$Always","$class":"hudson.slaves.RetentionStrategy$Always"},"nodeProperties":{"stapler-class-bag":"true"},"type":"hudson.slaves.DumbSlave"}
  • Stack trace

    • javax.servlet.ServletException: java.lang.RuntimeException: Failed to instantiate class hudson.slaves.DumbSlave from {"name":"Perm-Parallel Build Node (i-414661ff)","nodeDescription":"","numExecutors":"1","remoteFS":"/opt/jenkins","labelString":"","mode":"NORMAL","":["hudson.plugins.sshslaves.SSHLauncher","hudson.slaves.RetentionStrategy$Always"],"launcher":{"stapler-class":"hudson.plugins.sshslaves.SSHLauncher","$class":"hudson.plugins.sshslaves.SSHLauncher","host":"10.103.130.125","credentialsId":"716c03d8-744d-41ad-b2ed-06b62ef3f125","port":"22","javaPath":"","jvmOptions":"","prefixStartSlaveCmd":"","suffixStartSlaveCmd":"","launchTimeoutSeconds":"","maxNumRetries":"","retryWaitTime":""},"retentionStrategy":{"stapler-class":"hudson.slaves.RetentionStrategy$Always","$class":"hudson.slaves.RetentionStrategy$Always"},"nodeProperties":{"stapler-class-bag":"true"},"type":"hudson.slaves.DumbSlave"} at org.kohsuke.stapler.Stapler.tryInvoke(Stapler.java:796) at org.kohsuke.stapler.Stapler.invoke(Stapler.java:876) at org.kohsuke.stapler.MetaClass$4.doDispatch(MetaClass.java:211) at org.kohsuke.stapler.NameBasedDispatcher.dispatch(NameBasedDispatcher.java:53) at org.kohsuke.stapler.Stapler.tryInvoke(Stapler.java:746) at org.kohsuke.stapler.Stapler.invoke(Stapler.java:876) at org.kohsuke.stapler.Stapler.invoke(Stapler.java:649) at org.kohsuke.stapler.Stapler.service(Stapler.java:238) at javax.servlet.http.HttpServlet.service(HttpServlet.java:722) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:305) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210) at hudson.util.PluginServletFilter$1.doFilter(PluginServletFilter.java:132) at com.smartcodeltd.jenkinsci.plugin.assetbundler.filters.LessCSS.doFilter(LessCSS.java:46) at hudson.util.PluginServletFilter$1.doFilter(PluginServletFilter.java:129) at hudson.plugins.audit_trail.AuditTrailFilter.doFilter(AuditTrailFilter.java:95) at hudson.util.PluginServletFilter$1.doFilter(PluginServletFilter.java:129) at net.bull.javamelody.MonitoringFilter.doFilter(MonitoringFilter.java:198) at net.bull.javamelody.MonitoringFilter.doFilter(MonitoringFilter.java:176) at net.bull.javamelody.PluginMonitoringFilter.doFilter(PluginMonitoringFilter.java:85) at org.jvnet.hudson.plugins.monitoring.HudsonMonitoringFilter.doFilter(HudsonMonitoringFilter.java:99) at hudson.util.PluginServletFilter$1.doFilter(PluginServletFilter.java:129) at hudson.util.PluginServletFilter.doFilter(PluginServletFilter.java:123) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210) at hudson.security.csrf.CrumbFilter.doFilter(CrumbFilter.java:49) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210) at hudson.security.ChainedServletFilter$1.doFilter(ChainedServletFilter.java:84) at hudson.security.UnwrapSecurityExceptionFilter.doFilter(UnwrapSecurityExceptionFilter.java:51) at hudson.security.ChainedServletFilter$1.doFilter(ChainedServletFilter.java:87) at jenkins.security.ExceptionTranslationFilter.doFilter(ExceptionTranslationFilter.java:117) at hudson.security.ChainedServletFilter$1.doFilter(ChainedServletFilter.java:87) at org.acegisecurity.providers.anonymous.AnonymousProcessingFilter.doFilter(AnonymousProcessingFilter.java:125) at hudson.security.ChainedServletFilter$1.doFilter(ChainedServletFilter.java:87) at org.acegisecurity.ui.rememberme.RememberMeProcessingFilter.doFilter(RememberMeProcessingFilter.java:142) at hudson.security.ChainedServletFilter$1.doFilter(ChainedServletFilter.java:87) at org.acegisecurity.ui.AbstractProcessingFilter.doFilter(AbstractProcessingFilter.java:271) at hudson.security.ChainedServletFilter$1.doFilter(ChainedServletFilter.java:87) at jenkins.security.BasicHeaderProcessor.doFilter(BasicHeaderProcessor.java:93) at hudson.security.ChainedServletFilter$1.doFilter(ChainedServletFilter.java:87) at org.acegisecurity.context.HttpSessionContextIntegrationFilter.doFilter(HttpSessionContextIntegrationFilter.java:249) at hudson.security.HttpSessionContextIntegrationFilter2.doFilter(HttpSessionContextIntegrationFilter2.java:67) at hudson.security.ChainedServletFilter$1.doFilter(ChainedServletFilter.java:87) at hudson.security.ChainedServletFilter.doFilter(ChainedServletFilter.java:76) at hudson.security.HudsonFilter.doFilter(HudsonFilter.java:171) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210) at org.kohsuke.stapler.compression.CompressionFilter.doFilter(CompressionFilter.java:49) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210) at hudson.util.CharacterEncodingFilter.doFilter(CharacterEncodingFilter.java:81) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210) at org.kohsuke.stapler.DiagnosticThreadNameFilter.doFilter(DiagnosticThreadNameFilter.java:30) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210) at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:222) at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:123) at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:581) at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:168) at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:99) at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:929) at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:118) at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:407) at org.apache.coyote.ajp.AjpProcessor.process(AjpProcessor.java:200) at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:585) at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:310) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615) at java.lang.Thread.run(Thread.java:745) Caused by: java.lang.RuntimeException: Failed to instantiate class hudson.slaves.DumbSlave from {"name":"Perm-Parallel Build Node (i-414661ff)","nodeDescription":"","numExecutors":"1","remoteFS":"/opt/jenkins","labelString":"","mode":"NORMAL","":["hudson.plugins.sshslaves.SSHLauncher","hudson.slaves.RetentionStrategy$Always"],"launcher":{"stapler-class":"hudson.plugins.sshslaves.SSHLauncher","$class":"hudson.plugins.sshslaves.SSHLauncher","host":"10.103.130.125","credentialsId":"716c03d8-744d-41ad-b2ed-06b62ef3f125","port":"22","javaPath":"","jvmOptions":"","prefixStartSlaveCmd":"","suffixStartSlaveCmd":"","launchTimeoutSeconds":"","maxNumRetries":"","retryWaitTime":""},"retentionStrategy":{"stapler-class":"hudson.slaves.RetentionStrategy$Always","$class":"hudson.slaves.RetentionStrategy$Always"},"nodeProperties":{"stapler-class-bag":"true"},"type":"hudson.slaves.DumbSlave"} at hudson.model.Descriptor.newInstance(Descriptor.java:579) at hudson.model.ComputerSet.doDoCreateItem(ComputerSet.java:295) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:606) at org.kohsuke.stapler.Function$InstanceFunction.invoke(Function.java:298) at org.kohsuke.stapler.Function.bindAndInvoke(Function.java:161) at org.kohsuke.stapler.Function.bindAndInvokeAndServeResponse(Function.java:96) at org.kohsuke.stapler.MetaClass$1.doDispatch(MetaClass.java:121) at org.kohsuke.stapler.NameBasedDispatcher.dispatch(NameBasedDispatcher.java:53) at org.kohsuke.stapler.Stapler.tryInvoke(Stapler.java:746) ... 69 more Caused by: java.lang.RuntimeException: Failed to serialize hudson.model.Node#temporaryOfflineCause for class hudson.slaves.DumbSlave at hudson.util.RobustReflectionConverter$2.writeField(RobustReflectionConverter.java:215) at hudson.util.RobustReflectionConverter$2.visit(RobustReflectionConverter.java:183) at com.thoughtworks.xstream.converters.reflection.PureJavaReflectionProvider.visitSerializableFields(PureJavaReflectionProvider.java:138) at hudson.util.RobustReflectionConverter.doMarshal(RobustReflectionConverter.java:168) at hudson.util.RobustReflectionConverter.marshal(RobustReflectionConverter.java:109) at com.thoughtworks.xstream.core.AbstractReferenceMarshaller.convert(AbstractReferenceMarshaller.java:69) at com.thoughtworks.xstream.core.TreeMarshaller.convertAnother(TreeMarshaller.java:58) at com.thoughtworks.xstream.core.TreeMarshaller.convertAnother(TreeMarshaller.java:43) at com.thoughtworks.xstream.core.TreeMarshaller.start(TreeMarshaller.java:82) at com.thoughtworks.xstream.core.AbstractTreeMarshallingStrategy.marshal(AbstractTreeMarshallingStrategy.java:37) at com.thoughtworks.xstream.XStream.marshal(XStream.java:1026) at com.thoughtworks.xstream.XStream.marshal(XStream.java:1015) at com.thoughtworks.xstream.XStream.toXML(XStream.java:988) at hudson.XmlFile.write(XmlFile.java:178) at jenkins.model.Nodes.save(Nodes.java:195) at hudson.util.PersistedList.onModified(PersistedList.java:173) at hudson.util.PersistedList.replaceBy(PersistedList.java:85) at hudson.model.Slave.<init>(Slave.java:172) at hudson.model.Slave.<init>(Slave.java:148) at hudson.slaves.DumbSlave.<init>(DumbSlave.java:54) at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method) at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:57) at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45) at java.lang.reflect.Constructor.newInstance(Constructor.java:526) at org.kohsuke.stapler.RequestImpl.invokeConstructor(RequestImpl.java:451) at org.kohsuke.stapler.RequestImpl.instantiate(RequestImpl.java:703) at org.kohsuke.stapler.RequestImpl.access$200(RequestImpl.java:81) at org.kohsuke.stapler.RequestImpl$TypePair.convertJSON(RequestImpl.java:600) at org.kohsuke.stapler.RequestImpl.bindJSON(RequestImpl.java:404) at org.kohsuke.stapler.RequestImpl.bindJSON(RequestImpl.java:400) at hudson.model.Descriptor.newInstance(Descriptor.java:570) ... 80 more Caused by: java.lang.RuntimeException: Failed to serialize OfflineCause_groovyProxy#closureMap for class OfflineCause_groovyProxy at hudson.util.RobustReflectionConverter$2.writeField(RobustReflectionConverter.java:215) at hudson.util.RobustReflectionConverter$2.visit(RobustReflectionConverter.java:183) at com.thoughtworks.xstream.converters.reflection.PureJavaReflectionProvider.visitSerializableFields(PureJavaReflectionProvider.java:138) at hudson.util.RobustReflectionConverter.doMarshal(RobustReflectionConverter.java:168) at hudson.util.RobustReflectionConverter.marshal(RobustReflectionConverter.java:109) at com.thoughtworks.xstream.core.AbstractReferenceMarshaller.convert(AbstractReferenceMarshaller.java:69) at com.thoughtworks.xstream.core.TreeMarshaller.convertAnother(TreeMarshaller.java:58) at com.thoughtworks.xstream.core.AbstractReferenceMarshaller$1.convertAnother(AbstractReferenceMarshaller.java:84) at hudson.util.RobustReflectionConverter.marshallField(RobustReflectionConverter.java:224) at hudson.util.RobustReflectionConverter$2.writeField(RobustReflectionConverter.java:211) ... 110 more Caused by: java.lang.RuntimeException: Failed to serialize groovy.lang.Closure#delegate for class Script1$_run_closure9 at hudson.util.RobustReflectionConverter$2.writeField(RobustReflectionConverter.java:215) at hudson.util.RobustReflectionConverter$2.visit(RobustReflectionConverter.java:183) at com.thoughtworks.xstream.converters.reflection.PureJavaReflectionProvider.visitSerializableFields(PureJavaReflectionProvider.java:138) at hudson.util.RobustReflectionConverter.doMarshal(RobustReflectionConverter.java:168) at hudson.util.RobustReflectionConverter.marshal(RobustReflectionConverter.java:109) at com.thoughtworks.xstream.core.AbstractReferenceMarshaller.convert(AbstractReferenceMarshaller.java:69) at com.thoughtworks.xstream.core.TreeMarshaller.convertAnother(TreeMarshaller.java:58) at com.thoughtworks.xstream.core.TreeMarshaller.convertAnother(TreeMarshaller.java:43) at com.thoughtworks.xstream.core.AbstractReferenceMarshaller$1.convertAnother(AbstractReferenceMarshaller.java:88) at com.thoughtworks.xstream.converters.collections.AbstractCollectionConverter.writeItem(AbstractCollectionConverter.java:64) at com.thoughtworks.xstream.converters.collections.MapConverter.marshal(MapConverter.java:79) at com.thoughtworks.xstream.core.AbstractReferenceMarshaller.convert(AbstractReferenceMarshaller.java:69) at com.thoughtworks.xstream.core.TreeMarshaller.convertAnother(TreeMarshaller.java:58) at com.thoughtworks.xstream.core.AbstractReferenceMarshaller$1.convertAnother(AbstractReferenceMarshaller.java:84) at hudson.util.RobustReflectionConverter.marshallField(RobustReflectionConverter.java:224) at hudson.util.RobustReflectionConverter$2.writeField(RobustReflectionConverter.java:211) ... 119 more Caused by: java.lang.RuntimeException: Failed to serialize groovy.lang.Script#binding for class Script1 at hudson.util.RobustReflectionConverter$2.writeField(RobustReflectionConverter.java:215) at hudson.util.RobustReflectionConverter$2.visit(RobustReflectionConverter.java:183) at com.thoughtworks.xstream.converters.reflection.PureJavaReflectionProvider.visitSerializableFields(PureJavaReflectionProvider.java:138) at hudson.util.RobustReflectionConverter.doMarshal(RobustReflectionConverter.java:168) at hudson.util.RobustReflectionConverter.marshal(RobustReflectionConverter.java:109) at com.thoughtworks.xstream.core.AbstractReferenceMarshaller.convert(AbstractReferenceMarshaller.java:69) at com.thoughtworks.xstream.core.TreeMarshaller.convertAnother(TreeMarshaller.java:58) at com.thoughtworks.xstream.core.AbstractReferenceMarshaller$1.convertAnother(AbstractReferenceMarshaller.java:84) at hudson.util.RobustReflectionConverter.marshallField(RobustReflectionConverter.java:224) at hudson.util.RobustReflectionConverter$2.writeField(RobustReflectionConverter.java:211) ... 134 more Caused by: java.lang.RuntimeException: Failed to serialize groovy.lang.Binding#variables for class groovy.lang.Binding at hudson.util.RobustReflectionConverter$2.writeField(RobustReflectionConverter.java:215) at hudson.util.RobustReflectionConverter$2.visit(RobustReflectionConverter.java:183) at com.thoughtworks.xstream.converters.reflection.PureJavaReflectionProvider.visitSerializableFields(PureJavaReflectionProvider.java:138) at hudson.util.RobustReflectionConverter.doMarshal(RobustReflectionConverter.java:168) at hudson.util.RobustReflectionConverter.marshal(RobustReflectionConverter.java:109) at com.thoughtworks.xstream.core.AbstractReferenceMarshaller.convert(AbstractReferenceMarshaller.java:69) at com.thoughtworks.xstream.core.TreeMarshaller.convertAnother(TreeMarshaller.java:58) at com.thoughtworks.xstream.core.AbstractReferenceMarshaller$1.convertAnother(AbstractReferenceMarshaller.java:84) at hudson.util.RobustReflectionConverter.marshallField(RobustReflectionConverter.java:224) at hudson.util.RobustReflectionConverter$2.writeField(RobustReflectionConverter.java:211) ... 143 more Caused by: java.lang.RuntimeException: Failed to serialize hudson.Launcher#listener for class hudson.Launcher$LocalLauncher at hudson.util.RobustReflectionConverter$2.writeField(RobustReflectionConverter.java:215) at hudson.util.RobustReflectionConverter$2.visit(RobustReflectionConverter.java:183) at com.thoughtworks.xstream.converters.reflection.PureJavaReflectionProvider.visitSerializableFields(PureJavaReflectionProvider.java:138) at hudson.util.RobustReflectionConverter.doMarshal(RobustReflectionConverter.java:168) at hudson.util.RobustReflectionConverter.marshal(RobustReflectionConverter.java:109) at com.thoughtworks.xstream.core.AbstractReferenceMarshaller.convert(AbstractReferenceMarshaller.java:69) at com.thoughtworks.xstream.core.TreeMarshaller.convertAnother(TreeMarshaller.java:58) at com.thoughtworks.xstream.core.TreeMarshaller.convertAnother(TreeMarshaller.java:43) at com.thoughtworks.xstream.core.AbstractReferenceMarshaller$1.convertAnother(AbstractReferenceMarshaller.java:88) at com.thoughtworks.xstream.converters.collections.AbstractCollectionConverter.writeItem(AbstractCollectionConverter.java:64) at com.thoughtworks.xstream.converters.collections.MapConverter.marshal(MapConverter.java:79) at com.thoughtworks.xstream.core.AbstractReferenceMarshaller.convert(AbstractReferenceMarshaller.java:69) at com.thoughtworks.xstream.core.TreeMarshaller.convertAnother(TreeMarshaller.java:58) at com.thoughtworks.xstream.core.AbstractReferenceMarshaller$1.convertAnother(AbstractReferenceMarshaller.java:84) at hudson.util.RobustReflectionConverter.marshallField(RobustReflectionConverter.java:224) at hudson.util.RobustReflectionConverter$2.writeField(RobustReflectionConverter.java:211) ... 152 more Caused by: com.thoughtworks.xstream.converters.ConversionException: Could not call hudson.model.StreamBuildListener.writeObject() : Could not call hudson.remoting.RemoteOutputStream.writeObject() : null ---- Debugging information ---- message : Could not call hudson.remoting.RemoteOutputStream.writeObject() cause-exception : java.lang.NullPointerException cause-message : null ------------------------------- message : Could not call hudson.model.StreamBuildListener.writeObject() cause-exception : com.thoughtworks.xstream.converters.ConversionException cause-message : Could not call hudson.remoting.RemoteOutputStream.writeObject() : null ------------------------------- at com.thoughtworks.xstream.converters.reflection.SerializationMethodInvoker.callWriteObject(SerializationMethodInvoker.java:141) at com.thoughtworks.xstream.converters.reflection.SerializableConverter.doMarshal(SerializableConverter.java:259) at com.thoughtworks.xstream.converters.reflection.AbstractReflectionConverter.marshal(AbstractReflectionConverter.java:83) at com.thoughtworks.xstream.core.AbstractReferenceMarshaller.convert(AbstractReferenceMarshaller.java:69) at com.thoughtworks.xstream.core.TreeMarshaller.convertAnother(TreeMarshaller.java:58) at com.thoughtworks.xstream.core.AbstractReferenceMarshaller$1.convertAnother(AbstractReferenceMarshaller.java:84) at hudson.util.RobustReflectionConverter.marshallField(RobustReflectionConverter.java:224) at hudson.util.RobustReflectionConverter$2.writeField(RobustReflectionConverter.java:211) ... 167 more Caused by: com.thoughtworks.xstream.converters.ConversionException: Could not call hudson.remoting.RemoteOutputStream.writeObject() : null ---- Debugging information ---- message : Could not call hudson.remoting.RemoteOutputStream.writeObject() cause-exception : java.lang.NullPointerException cause-message : null ------------------------------- at com.thoughtworks.xstream.converters.reflection.SerializationMethodInvoker.callWriteObject(SerializationMethodInvoker.java:141) at com.thoughtworks.xstream.converters.reflection.SerializableConverter.doMarshal(SerializableConverter.java:259) at com.thoughtworks.xstream.converters.reflection.AbstractReflectionConverter.marshal(AbstractReflectionConverter.java:83) at com.thoughtworks.xstream.core.AbstractReferenceMarshaller.convert(AbstractReferenceMarshaller.java:69) at com.thoughtworks.xstream.core.TreeMarshaller.convertAnother(TreeMarshaller.java:58) at com.thoughtworks.xstream.core.TreeMarshaller.convertAnother(TreeMarshaller.java:43) at com.thoughtworks.xstream.core.AbstractReferenceMarshaller$1.convertAnother(AbstractReferenceMarshaller.java:88) at com.thoughtworks.xstream.converters.reflection.SerializableConverter$1.writeToStream(SerializableConverter.java:140) at com.thoughtworks.xstream.core.util.CustomObjectOutputStream.writeObjectOverride(CustomObjectOutputStream.java:84) at java.io.ObjectOutputStream.writeObject(ObjectOutputStream.java:343) at hudson.util.StreamTaskListener.writeObject(StreamTaskListener.java:163) at sun.reflect.GeneratedMethodAccessor1241.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:606) at com.thoughtworks.xstream.converters.reflection.SerializationMethodInvoker.callWriteObject(SerializationMethodInvoker.java:135) ... 174 more Caused by: java.lang.NullPointerException at hudson.remoting.RemoteOutputStream.writeObject(RemoteOutputStream.java:82) at sun.reflect.GeneratedMethodAccessor1242.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:606) at com.thoughtworks.xstream.converters.reflection.SerializationMethodInvoker.callWriteObject(SerializationMethodInvoker.java:135) ... 188 more

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