Major Description
Currently when I navigate to org.apache.nutch.webui.pages.settings.SettingsPage I get the following in my log tail
hadoop.log
2014-09-22 16:39:12,537 ERROR java.JavaSerializer - Error serializing object class org.apache.nutch.webui.pages.settings.SettingsPage [object=[Page class = org.apache.nutch.webui.pages.settings.SettingsPage, id = 21, render count = 1]] org.apache.wicket.core.util.objects.checker.CheckingObjectOutputStream$ObjectCheckException: The object type is not Serializable! A problem occurred while checking object with type: org.apache.nutch.webui.model.NutchConfig Field hierarchy is: 21 [class=org.apache.nutch.webui.pages.settings.SettingsPage, path=21] private java.lang.Object org.apache.wicket.MarkupContainer.children [class=[Ljava.lang.Object;] private org.apache.wicket.util.time.Duration de.agilecoders.wicket.core.markup.html.bootstrap.common.NotificationPanel.duration[2] [class=org.apache.wicket.markup.html.WebMarkupContainer, path=21:settingsTable] private java.lang.Object org.apache.wicket.MarkupContainer.children [class=org.apache.wicket.markup.repeater.RefreshingView, path=21:settingsTable:settings] private java.lang.Object org.apache.wicket.MarkupContainer.children [class=[Ljava.lang.Object;] private java.lang.Object org.apache.wicket.MarkupContainer.children[0] [class=org.apache.wicket.markup.repeater.Item, path=21:settingsTable:settings:1] java.lang.Object org.apache.wicket.Component.data [class=org.apache.wicket.model.CompoundPropertyModel] private java.lang.Object org.apache.wicket.model.ChainingModel.target [class=org.apache.nutch.webui.model.NutchConfig] <----- field that is causing the problem at org.apache.wicket.core.util.objects.checker.CheckingObjectOutputStream.internalCheck(CheckingObjectOutputStream.java:387) at org.apache.wicket.core.util.objects.checker.CheckingObjectOutputStream.check(CheckingObjectOutputStream.java:361) at org.apache.wicket.core.util.objects.checker.CheckingObjectOutputStream.checkFields(CheckingObjectOutputStream.java:645) at org.apache.wicket.core.util.objects.checker.CheckingObjectOutputStream.internalCheck(CheckingObjectOutputStream.java:569) at org.apache.wicket.core.util.objects.checker.CheckingObjectOutputStream.check(CheckingObjectOutputStream.java:361) at org.apache.wicket.core.util.objects.checker.CheckingObjectOutputStream.checkFields(CheckingObjectOutputStream.java:645) at org.apache.wicket.core.util.objects.checker.CheckingObjectOutputStream.internalCheck(CheckingObjectOutputStream.java:569) at org.apache.wicket.core.util.objects.checker.CheckingObjectOutputStream.check(CheckingObjectOutputStream.java:361) at org.apache.wicket.core.util.objects.checker.CheckingObjectOutputStream.internalCheck(CheckingObjectOutputStream.java:432) at org.apache.wicket.core.util.objects.checker.CheckingObjectOutputStream.check(CheckingObjectOutputStream.java:361) at org.apache.wicket.core.util.objects.checker.CheckingObjectOutputStream.checkFields(CheckingObjectOutputStream.java:645) at org.apache.wicket.core.util.objects.checker.CheckingObjectOutputStream.internalCheck(CheckingObjectOutputStream.java:569) at org.apache.wicket.core.util.objects.checker.CheckingObjectOutputStream.check(CheckingObjectOutputStream.java:361) at org.apache.wicket.core.util.objects.checker.CheckingObjectOutputStream.checkFields(CheckingObjectOutputStream.java:645) at org.apache.wicket.core.util.objects.checker.CheckingObjectOutputStream.internalCheck(CheckingObjectOutputStream.java:569) at org.apache.wicket.core.util.objects.checker.CheckingObjectOutputStream.check(CheckingObjectOutputStream.java:361) at org.apache.wicket.core.util.objects.checker.CheckingObjectOutputStream.internalCheck(CheckingObjectOutputStream.java:432) at org.apache.wicket.core.util.objects.checker.CheckingObjectOutputStream.check(CheckingObjectOutputStream.java:361) at org.apache.wicket.core.util.objects.checker.CheckingObjectOutputStream.checkFields(CheckingObjectOutputStream.java:645) at org.apache.wicket.core.util.objects.checker.CheckingObjectOutputStream.internalCheck(CheckingObjectOutputStream.java:569) at org.apache.wicket.core.util.objects.checker.CheckingObjectOutputStream.check(CheckingObjectOutputStream.java:361) at org.apache.wicket.core.util.objects.checker.CheckingObjectOutputStream.writeObjectOverride(CheckingObjectOutputStream.java:713) at java.io.ObjectOutputStream.writeObject(ObjectOutputStream.java:343) at org.apache.wicket.serialize.java.JavaSerializer$SerializationCheckerObjectOutputStream.writeObjectOverride(JavaSerializer.java:268) at java.io.ObjectOutputStream.writeObject(ObjectOutputStream.java:343) at org.apache.wicket.serialize.java.JavaSerializer.serialize(JavaSerializer.java:78) at org.apache.wicket.pageStore.DefaultPageStore.serializePage(DefaultPageStore.java:376) at org.apache.wicket.pageStore.DefaultPageStore.storePage(DefaultPageStore.java:150) at org.apache.wicket.page.PageStoreManager$PersistentRequestAdapter.storeTouchedPages(PageStoreManager.java:412) at org.apache.wicket.page.RequestAdapter.commitRequest(RequestAdapter.java:181) at org.apache.wicket.page.AbstractPageManager.commitRequest(AbstractPageManager.java:98) at org.apache.wicket.page.PageManagerDecorator.commitRequest(PageManagerDecorator.java:73) at org.apache.wicket.page.PageAccessSynchronizer$2.commitRequest(PageAccessSynchronizer.java:258) at org.apache.wicket.Application$2.onDetach(Application.java:1666) at org.apache.wicket.request.cycle.RequestCycleListenerCollection$3.notify(RequestCycleListenerCollection.java:105) at org.apache.wicket.request.cycle.RequestCycleListenerCollection$3.notify(RequestCycleListenerCollection.java:101) at org.apache.wicket.util.listener.ListenerCollection$1.notify(ListenerCollection.java:120) at org.apache.wicket.util.listener.ListenerCollection.reversedNotify(ListenerCollection.java:144) at org.apache.wicket.util.listener.ListenerCollection.reversedNotifyIgnoringExceptions(ListenerCollection.java:113) at org.apache.wicket.request.cycle.RequestCycleListenerCollection.onDetach(RequestCycleListenerCollection.java:100) at org.apache.wicket.request.cycle.RequestCycle.onDetach(RequestCycle.java:640) at org.apache.wicket.request.cycle.RequestCycle.detach(RequestCycle.java:589) at org.apache.wicket.request.cycle.RequestCycle.processRequestAndDetach(RequestCycle.java:293) at org.apache.wicket.protocol.http.WicketFilter.processRequestCycle(WicketFilter.java:259) at org.apache.wicket.protocol.http.WicketFilter.processRequest(WicketFilter.java:201) at org.apache.wicket.protocol.http.WicketFilter.doFilter(WicketFilter.java:282) at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1212) at org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:399) at org.mortbay.jetty.servlet.SessionHandler.handle(SessionHandler.java:182) at org.mortbay.jetty.handler.ContextHandler.handle(ContextHandler.java:766) at org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java:152) at org.mortbay.jetty.Server.handle(Server.java:326) at org.mortbay.jetty.HttpConnection.handleRequest(HttpConnection.java:542) at org.mortbay.jetty.HttpConnection$RequestHandler.headerComplete(HttpConnection.java:928) at org.mortbay.jetty.HttpParser.parseNext(HttpParser.java:549) at org.mortbay.jetty.HttpParser.parseAvailable(HttpParser.java:212) at org.mortbay.jetty.HttpConnection.handle(HttpConnection.java:404) at org.mortbay.jetty.bio.SocketConnector$Connection.run(SocketConnector.java:228) at org.mortbay.thread.QueuedThreadPool$PoolThread.run(QueuedThreadPool.java:582) Caused by: java.io.NotSerializableException: org.apache.nutch.webui.model.NutchConfig at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1183) at java.io.ObjectOutputStream.defaultWriteFields(ObjectOutputStream.java:1547) at java.io.ObjectOutputStream.writeSerialData(ObjectOutputStream.java:1508) at java.io.ObjectOutputStream.writeOrdinaryObject(ObjectOutputStream.java:1431) at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1177) at java.io.ObjectOutputStream.defaultWriteFields(ObjectOutputStream.java:1547) at java.io.ObjectOutputStream.writeSerialData(ObjectOutputStream.java:1508) at java.io.ObjectOutputStream.writeOrdinaryObject(ObjectOutputStream.java:1431) at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1177) at java.io.ObjectOutputStream.writeArray(ObjectOutputStream.java:1377) at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1173) at java.io.ObjectOutputStream.defaultWriteFields(ObjectOutputStream.java:1547) at java.io.ObjectOutputStream.writeSerialData(ObjectOutputStream.java:1508) at java.io.ObjectOutputStream.writeOrdinaryObject(ObjectOutputStream.java:1431) at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1177) at java.io.ObjectOutputStream.defaultWriteFields(ObjectOutputStream.java:1547) at java.io.ObjectOutputStream.writeSerialData(ObjectOutputStream.java:1508) at java.io.ObjectOutputStream.writeOrdinaryObject(ObjectOutputStream.java:1431) at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1177) at java.io.ObjectOutputStream.writeArray(ObjectOutputStream.java:1377) at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1173) at java.io.ObjectOutputStream.defaultWriteFields(ObjectOutputStream.java:1547) at java.io.ObjectOutputStream.writeSerialData(ObjectOutputStream.java:1508) at java.io.ObjectOutputStream.writeOrdinaryObject(ObjectOutputStream.java:1431) at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1177) at java.io.ObjectOutputStream.writeObject(ObjectOutputStream.java:347) at org.apache.wicket.serialize.java.JavaSerializer$SerializationCheckerObjectOutputStream.writeObjectOverride(JavaSerializer.java:260) ... 35 more 2014-09-22 16:39:12,538 WARN pageStore.DefaultPageStore - Page [Page class = org.apache.nutch.webui.pages.settings.SettingsPage, id = 21, render count = 1] cannot be serialized. See previous logs for possible reasons.