it would be helpful to know the version

-igor


On 2/14/07, Aaron HIniker <[EMAIL PROTECTED]> wrote:

When doing an ajax update on a MarkupContainer containing a listview.. I
am replacing the listview model before the update:

java.lang.NullPointerException
        at wicket.Page.componentStateChanging(Page.java:327)
        at wicket.Component.addStateChange(Component.java:2551)
        at wicket.MarkupContainer.removeAll(MarkupContainer.java:510)
        at wicket.markup.html.list.ListView.setModel(ListView.java:514)
        at
com.edicorp.erp.web.pages.admin.search.SpecEditPage$2.onNodeLinkClicked(
SpecEditPage.java:79)
        at
wicket.markup.html.tree.DefaultAbstractTree$9.onClick(
DefaultAbstractTree.java:533)
        at
wicket.markup.html.tree.DefaultAbstractTree$6.onClick(
DefaultAbstractTree.java:467)
        at wicket.ajax.markup.html.AjaxLink$1.onEvent(AjaxLink.java:77)
        at wicket.ajax.AjaxEventBehavior.respond(AjaxEventBehavior.java
:164)
        at
wicket.ajax.AbstractDefaultAjaxBehavior.onRequest(
AbstractDefaultAjaxBehavior.java:216)
        at

wicket.request.target.component.listener.BehaviorRequestTarget.processEvents
(BehaviorRequestTarget.java:97)
        at
wicket.request.compound.DefaultEventProcessorStrategy.processEvents(
DefaultEventProcessorStrategy.java:68)
        at

wicket.request.compound.AbstractCompoundRequestCycleProcessor.processEvents
(AbstractCompoundRequestCycleProcessor.java:56)
        at
wicket.RequestCycle.doProcessEventsAndRespond(RequestCycle.java:938)
        at
wicket.RequestCycle.processEventsAndRespond(RequestCycle.java:978)
        at wicket.RequestCycle.step(RequestCycle.java:1054)
        at wicket.RequestCycle.steps(RequestCycle.java:1125)
        at wicket.RequestCycle.request(RequestCycle.java:470)
        at wicket.protocol.http.WicketFilter.doGet(WicketFilter.java:232)
        at wicket.protocol.http.WicketFilter.doFilter(WicketFilter.java
:122)
        at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(
ApplicationFilterChain.java:202)
        at
org.apache.catalina.core.ApplicationFilterChain.doFilter(
ApplicationFilterChain.java:173)
        at
org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(
ReplyHeaderFilter.java:96)
        at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(
ApplicationFilterChain.java:202)
        at
org.apache.catalina.core.ApplicationFilterChain.doFilter(
ApplicationFilterChain.java:173)
        at
org.apache.catalina.core.StandardWrapperValve.invoke(
StandardWrapperValve.java:213)
        at
org.apache.catalina.core.StandardContextValve.invoke(
StandardContextValve.java:178)
        at
org.jboss.web.tomcat.security.SecurityAssociationValve.invoke(
SecurityAssociationValve.java:175)
        at
org.jboss.web.tomcat.security.JaccContextValve.invoke(
JaccContextValve.java:74)
        at
org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java
:126)
        at
org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java
:105)
        at
org.jboss.web.tomcat.tc5.jca.CachedConnectionValve.invoke(
CachedConnectionValve.java:156)
        at
org.apache.catalina.core.StandardEngineValve.invoke(
StandardEngineValve.java:107)
        at
org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java
:148)
        at
org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:869)
        at

org.apache.coyote.http11.Http11BaseProtocol$Http11ConnectionHandler.processConnection
(Http11BaseProtocol.java:664)
        at
org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(
PoolTcpEndpoint.java:527)
        at
org.apache.tomcat.util.net.MasterSlaveWorkerThread.run(
MasterSlaveWorkerThread.java:112)
        at java.lang.Thread.run(Thread.java:595)



Aaron

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