[
https://issues.apache.org/jira/browse/WICKET-6040?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Sven Meier resolved WICKET-6040.
--------------------------------
Resolution: Fixed
Fix Version/s: 6.22.0
Same as in WICKET-6011 : DebugBar serializes the page before the Ajax header
container is removed, thus keep reference to AbstractAjaxResponse in transient
member only.
> DebugBar not serializable exception
> -----------------------------------
>
> Key: WICKET-6040
> URL: https://issues.apache.org/jira/browse/WICKET-6040
> Project: Wicket
> Issue Type: Bug
> Components: wicket-devutils
> Affects Versions: 6.21.0
> Environment: jdk 7, ubuntu
> Reporter: Elvis Ciocoiu
> Assignee: Sven Meier
> Fix For: 6.22.0
>
>
> After upgrading to 6.21.0 I encountered NotSerializableException when
> refreshing DebugBar in an ajax event. Martin Grigorov suspects this is
> related to
> https://github.com/apache/wicket/commit/562d43ccdd7f305f8ca641817f4b63a07ee8b6a6.
> To reproduce this:
> 1. start the application in development mode
> 2. override onEvent in Application to refresh the DebugBar
> public void onEvent(IEvent<?> event) {
> if(event.getPayload() instanceof AjaxRequestTarget) {
> AjaxRequestTarget target = (AjaxRequestTarget)
> event.getPayload();
> // if we are in development refresh the debugbar (if exists)
> if(getConfigurationType() ==
> RuntimeConfigurationType.DEVELOPMENT) {
> Component debugBar =
> page.get("debugBar");
> if(debugBar != null) target.add(debugBar);
> }
> }
> From stacktrace it seems this is related to
> org.apache.wicket.ajax.AbstractAjaxResponse$AjaxHtmlHeaderContainer:
> Caused by: java.lang.RuntimeException: An error occurred while getting the
> model object for Component: [Component id = data, page =
> ro.emp.wicket.StandaloneHomePage, path =
> 2:debugBar:content:contributors:3:contrib:link:data.Label, isVisible = true,
> isVersioned = true, markup = [markup =
> jar:file:/home/fanfy/.m2/repository/org/apache/wicket/wicket-devutils/6.21.0/wicket-devutils-6.21.0.jar!/org/apache/wicket/devutils/debugbar/StandardDebugPanel.html
> <span wicket:id="data"></span>, index = 0, current = '<span
> wicket:id="data">' (line 0, column 0)]]
> at
> org.apache.wicket.Component.getDefaultModelObject(Component.java:1617)
> ~[wicket-core-6.21.0.jar:6.21.0]
> at
> org.apache.wicket.Component.getDefaultModelObjectAsString(Component.java:1640)
> ~[wicket-core-6.21.0.jar:6.21.0]
> at
> org.apache.wicket.markup.html.basic.Label.onComponentTagBody(Label.java:131)
> ~[wicket-core-6.21.0.jar:6.21.0]
> at
> org.apache.wicket.markup.html.panel.DefaultMarkupSourcingStrategy.onComponentTagBody(DefaultMarkupSourcingStrategy.java:71)
> ~[wicket-core-6.21.0.jar:6.21.0]
> at
> org.apache.wicket.Component.internalRenderComponent(Component.java:2536)
> ~[wicket-core-6.21.0.jar:6.21.0]
> ... 132 common frames omitted
> Caused by: org.apache.wicket.WicketRuntimeException: Internal error cloning
> object
> at
> org.apache.wicket.core.util.lang.WicketObjects.cloneObject(WicketObjects.java:361)
> ~[wicket-core-6.21.0.jar:6.21.0]
> at
> org.apache.wicket.core.util.lang.WicketObjects.sizeof(WicketObjects.java:425)
> ~[wicket-core-6.21.0.jar:6.21.0]
> at
> org.apache.wicket.devutils.debugbar.PageSizeDebugPanel$2.getObject(PageSizeDebugPanel.java:96)
> ~[wicket-devutils-6.21.0.jar:6.21.0]
> at
> org.apache.wicket.devutils.debugbar.PageSizeDebugPanel$2.getObject(PageSizeDebugPanel.java:89)
> ~[wicket-devutils-6.21.0.jar:6.21.0]
> at
> org.apache.wicket.Component.getDefaultModelObject(Component.java:1612)
> ~[wicket-core-6.21.0.jar:6.21.0]
> ... 136 common frames omitted
> Caused by: java.io.NotSerializableException:
> org.apache.wicket.ajax.AjaxRequestHandler$1
> - field (class
> "org.apache.wicket.ajax.AbstractAjaxResponse$AjaxHtmlHeaderContainer", name:
> "this$0", type: "class org.apache.wicket.ajax.AbstractAjaxResponse")
> - object (class
> "org.apache.wicket.ajax.AbstractAjaxResponse$AjaxHtmlHeaderContainer",
> [AjaxHtmlHeaderContainer [Component id = _header_]])
> - element of array (index: 9)
> - array (class "[Ljava.lang.Object;", size: 18)
> - field (class "org.apache.wicket.MarkupContainer$ChildList", name:
> "childs", type: "class [Ljava.lang.Object;")
> - object (class "org.apache.wicket.MarkupContainer$ChildList",
> [[Component id = applicationTitle], [FocusComponentFeedbackPanel [Component
> id = feedbackPanel]], [DebugBar [Component id = debugBar]],
> [StackComponentContainerImpl [Component id = contentContainer]],
> [GlobalMenuPanel [Component id = menu]], [Fragment [Component id =
> customHeader]], [Fragment [Component id = customFooter]], [WebMarkupContainer
> [Component id = localeContainer]], [WebMarkupContainer [Component id =
> userInformations]], [AjaxHtmlHeaderContainer [Component id = _header_]]])
> - field (class "org.apache.wicket.MarkupContainer", name: "children",
> type: "class java.lang.Object")
> - root object (class "ro.emp.wicket.StandaloneHomePage", [Page class =
> ro.emp.wicket.StandaloneHomePage, id = 2, render count = 3])
> at
> java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1180)
> ~[na:1.7.0_80]
> at
> java.io.ObjectOutputStream.defaultWriteFields(ObjectOutputStream.java:1547)
> ~[na:1.7.0_80]
> at
> java.io.ObjectOutputStream.writeSerialData(ObjectOutputStream.java:1508)
> ~[na:1.7.0_80]
> at
> java.io.ObjectOutputStream.writeOrdinaryObject(ObjectOutputStream.java:1431)
> ~[na:1.7.0_80]
> at
> java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1177)
> ~[na:1.7.0_80]
> at java.io.ObjectOutputStream.writeArray(ObjectOutputStream.java:1377)
> ~[na:1.7.0_80]
> at
> java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1173)
> ~[na:1.7.0_80]
> at
> java.io.ObjectOutputStream.defaultWriteFields(ObjectOutputStream.java:1547)
> ~[na:1.7.0_80]
> at
> java.io.ObjectOutputStream.writeSerialData(ObjectOutputStream.java:1508)
> ~[na:1.7.0_80]
> at
> java.io.ObjectOutputStream.writeOrdinaryObject(ObjectOutputStream.java:1431)
> ~[na:1.7.0_80]
> at
> java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1177)
> ~[na:1.7.0_80]
> at
> java.io.ObjectOutputStream.defaultWriteFields(ObjectOutputStream.java:1547)
> ~[na:1.7.0_80]
> at
> java.io.ObjectOutputStream.writeSerialData(ObjectOutputStream.java:1508)
> ~[na:1.7.0_80]
> at
> java.io.ObjectOutputStream.writeOrdinaryObject(ObjectOutputStream.java:1431)
> ~[na:1.7.0_80]
> at
> java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1177)
> ~[na:1.7.0_80]
> at java.io.ObjectOutputStream.writeObject(ObjectOutputStream.java:347)
> ~[na:1.7.0_80]
> at
> org.apache.wicket.core.util.lang.WicketObjects.cloneObject(WicketObjects.java:306)
> ~[wicket-core-6.21.0.jar:6.21.0]
> ... 140 common frames omitted
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