I created a one page app trying to isolate this problem. Here are the stack
traces from new Exception().printStackTrace(). This is one Ajax request from
a AjaxFormSubmitBehavior("onkeypress"). The code for the class Load is at
the bottom.
java.lang.Exception
at load.Load$LoadForm$1.isVisible(Load.java:46)
at org.apache.wicket.Component.internalBeforeRender(Component.java:990)
at org.apache.wicket.Component.beforeRender(Component.java:1027)
at
org.apache.wicket.MarkupContainer.onBeforeRenderChildren(MarkupContainer.jav
a:1513)
at org.apache.wicket.Component.onBeforeRender(Component.java:3657)
at org.apache.wicket.Component.internalBeforeRender(Component.java:995)
at org.apache.wicket.Component.beforeRender(Component.java:1027)
at org.apache.wicket.Component.prepareForRender(Component.java:2139)
at
org.apache.wicket.ajax.AjaxRequestTarget.respondComponent(AjaxRequestTarget.
java:698)
at
org.apache.wicket.ajax.AjaxRequestTarget.respondComponents(AjaxRequestTarget
.java:605)
at
org.apache.wicket.ajax.AjaxRequestTarget.respond(AjaxRequestTarget.java:520)
at
org.apache.wicket.request.AbstractRequestCycleProcessor.respond(AbstractRequ
estCycleProcessor.java:103)
at
org.apache.wicket.RequestCycle.processEventsAndRespond(RequestCycle.java:117
2)
at org.apache.wicket.RequestCycle.step(RequestCycle.java:1241)
at org.apache.wicket.RequestCycle.steps(RequestCycle.java:1316)
at org.apache.wicket.RequestCycle.request(RequestCycle.java:493)
at
org.apache.wicket.protocol.http.WicketFilter.doGet(WicketFilter.java:354)
at
org.apache.wicket.protocol.http.WicketFilter.doFilter(WicketFilter.java:194)
at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Application
FilterChain.java:186)
at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterCh
ain.java:157)
at
org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.ja
va:214)
at
org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.ja
va:178)
at
org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:126
)
at
org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:105
)
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:825)
at
org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.processConne
ction(Http11Protocol.java:731)
at
org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.jav
a:524)
at
org.apache.tomcat.util.net.LeaderFollowerWorkerThread.runIt(LeaderFollowerWo
rkerThread.java:80)
at
org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.jav
a:684)
at java.lang.Thread.run(Thread.java:595)
##### load() was first called here
java.lang.Exception
at load.Load$LoadForm$1.isVisible(Load.java:46)
at
org.apache.wicket.ajax.AjaxRequestTarget$3.component(AjaxRequestTarget.java:
937)
at
org.apache.wicket.MarkupContainer.visitChildren(MarkupContainer.java:821)
at
org.apache.wicket.MarkupContainer.visitChildren(MarkupContainer.java:861)
at
org.apache.wicket.ajax.AjaxRequestTarget.respondHeaderContribution(AjaxReque
stTarget.java:933)
at
org.apache.wicket.ajax.AjaxRequestTarget.respondComponent(AjaxRequestTarget.
java:701)
at
org.apache.wicket.ajax.AjaxRequestTarget.respondComponents(AjaxRequestTarget
.java:605)
at
org.apache.wicket.ajax.AjaxRequestTarget.respond(AjaxRequestTarget.java:520)
at
org.apache.wicket.request.AbstractRequestCycleProcessor.respond(AbstractRequ
estCycleProcessor.java:103)
at
org.apache.wicket.RequestCycle.processEventsAndRespond(RequestCycle.java:117
2)
at org.apache.wicket.RequestCycle.step(RequestCycle.java:1241)
at org.apache.wicket.RequestCycle.steps(RequestCycle.java:1316)
at org.apache.wicket.RequestCycle.request(RequestCycle.java:493)
at
org.apache.wicket.protocol.http.WicketFilter.doGet(WicketFilter.java:354)
at
org.apache.wicket.protocol.http.WicketFilter.doFilter(WicketFilter.java:194)
at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Application
FilterChain.java:186)
at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterCh
ain.java:157)
at
org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.ja
va:214)
at
org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.ja
va:178)
at
org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:126
)
at
org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:105
)
at
org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java
:107)
at
org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:148)
at
org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:825)
at
org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.processConne
ction(Http11Protocol.java:731)
at
org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.jav
a:524)
at
org.apache.tomcat.util.net.LeaderFollowerWorkerThread.runIt(LeaderFollowerWo
rkerThread.java:80)
at
org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.jav
a:684)
at java.lang.Thread.run(Thread.java:595)
java.lang.Exception
at load.Load$LoadForm$1.isVisible(Load.java:46)
at org.apache.wicket.Component.renderHead(Component.java:2528)
at
org.apache.wicket.ajax.AjaxRequestTarget$3.component(AjaxRequestTarget.java:
939)
at
org.apache.wicket.MarkupContainer.visitChildren(MarkupContainer.java:821)
at
org.apache.wicket.MarkupContainer.visitChildren(MarkupContainer.java:861)
at
org.apache.wicket.ajax.AjaxRequestTarget.respondHeaderContribution(AjaxReque
stTarget.java:933)
at
org.apache.wicket.ajax.AjaxRequestTarget.respondComponent(AjaxRequestTarget.
java:701)
at
org.apache.wicket.ajax.AjaxRequestTarget.respondComponents(AjaxRequestTarget
.java:605)
at
org.apache.wicket.ajax.AjaxRequestTarget.respond(AjaxRequestTarget.java:520)
at
org.apache.wicket.request.AbstractRequestCycleProcessor.respond(AbstractRequ
estCycleProcessor.java:103)
at
org.apache.wicket.RequestCycle.processEventsAndRespond(RequestCycle.java:117
2)
at org.apache.wicket.RequestCycle.step(RequestCycle.java:1241)
at org.apache.wicket.RequestCycle.steps(RequestCycle.java:1316)
at org.apache.wicket.RequestCycle.request(RequestCycle.java:493)
at
org.apache.wicket.protocol.http.WicketFilter.doGet(WicketFilter.java:354)
at
org.apache.wicket.protocol.http.WicketFilter.doFilter(WicketFilter.java:194)
at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Application
FilterChain.java:186)
at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterCh
ain.java:157)
at
org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.ja
va:214)
at
org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.ja
va:178)
at
org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:126
)
at
org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:105
)
at
org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java
:107)
at
org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:148)
at
org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:825)
at
org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.processConne
ction(Http11Protocol.java:731)
at
org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.jav
a:524)
at
org.apache.tomcat.util.net.LeaderFollowerWorkerThread.runIt(LeaderFollowerWo
rkerThread.java:80)
at
org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.jav
a:684)
at java.lang.Thread.run(Thread.java:595)
java.lang.Exception
at load.Load$LoadForm$1.isVisible(Load.java:46)
at org.apache.wicket.Component.render(Component.java:2277)
at
org.apache.wicket.MarkupContainer.renderNext(MarkupContainer.java:1240)
at
org.apache.wicket.MarkupContainer.renderComponentTagBody(MarkupContainer.jav
a:1407)
at
org.apache.wicket.MarkupContainer.onComponentTagBody(MarkupContainer.java:13
44)
at
org.apache.wicket.markup.html.form.Form.onComponentTagBody(Form.java:1648)
at org.apache.wicket.Component.renderComponent(Component.java:2459)
at org.apache.wicket.MarkupContainer.onRender(MarkupContainer.java:1354)
at org.apache.wicket.markup.html.form.Form.onRender(Form.java:1687)
at org.apache.wicket.Component.render(Component.java:2296)
at org.apache.wicket.Component.renderComponent(Component.java:2399)
at
org.apache.wicket.ajax.AjaxRequestTarget.respondComponent(AjaxRequestTarget.
java:703)
at
org.apache.wicket.ajax.AjaxRequestTarget.respondComponents(AjaxRequestTarget
.java:605)
at
org.apache.wicket.ajax.AjaxRequestTarget.respond(AjaxRequestTarget.java:520)
at
org.apache.wicket.request.AbstractRequestCycleProcessor.respond(AbstractRequ
estCycleProcessor.java:103)
at
org.apache.wicket.RequestCycle.processEventsAndRespond(RequestCycle.java:117
2)
at org.apache.wicket.RequestCycle.step(RequestCycle.java:1241)
at org.apache.wicket.RequestCycle.steps(RequestCycle.java:1316)
at org.apache.wicket.RequestCycle.request(RequestCycle.java:493)
at
org.apache.wicket.protocol.http.WicketFilter.doGet(WicketFilter.java:354)
at
org.apache.wicket.protocol.http.WicketFilter.doFilter(WicketFilter.java:194)
at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Application
FilterChain.java:186)
at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterCh
ain.java:157)
at
org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.ja
va:214)
at
org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.ja
va:178)
at
org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:126
)
at
org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:105
)
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:825)
at
org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.processConne
ction(Http11Protocol.java:731)
at
org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.jav
a:524)
at
org.apache.tomcat.util.net.LeaderFollowerWorkerThread.runIt(LeaderFollowerWo
rkerThread.java:80)
at
org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.jav
a:684)
at java.lang.Thread.run(Thread.java:595)
java.lang.Exception
at load.Load$LoadForm$1.isVisible(Load.java:46)
at org.apache.wicket.Component.toString(Component.java:3048)
at org.apache.wicket.Component.toString(Component.java:3027)
at java.lang.String.valueOf(String.java:2577)
at java.lang.StringBuffer.append(StringBuffer.java:220)
at org.apache.wicket.Component.render(Component.java:2284)
at
org.apache.wicket.MarkupContainer.renderNext(MarkupContainer.java:1240)
at
org.apache.wicket.MarkupContainer.renderComponentTagBody(MarkupContainer.jav
a:1407)
at
org.apache.wicket.MarkupContainer.onComponentTagBody(MarkupContainer.java:13
44)
at
org.apache.wicket.markup.html.form.Form.onComponentTagBody(Form.java:1648)
at org.apache.wicket.Component.renderComponent(Component.java:2459)
at org.apache.wicket.MarkupContainer.onRender(MarkupContainer.java:1354)
at org.apache.wicket.markup.html.form.Form.onRender(Form.java:1687)
at org.apache.wicket.Component.render(Component.java:2296)
at org.apache.wicket.Component.renderComponent(Component.java:2399)
at
org.apache.wicket.ajax.AjaxRequestTarget.respondComponent(AjaxRequestTarget.
java:703)
at
org.apache.wicket.ajax.AjaxRequestTarget.respondComponents(AjaxRequestTarget
.java:605)
at
org.apache.wicket.ajax.AjaxRequestTarget.respond(AjaxRequestTarget.java:520)
at
org.apache.wicket.request.AbstractRequestCycleProcessor.respond(AbstractRequ
estCycleProcessor.java:103)
at
org.apache.wicket.RequestCycle.processEventsAndRespond(RequestCycle.java:117
2)
at org.apache.wicket.RequestCycle.step(RequestCycle.java:1241)
at org.apache.wicket.RequestCycle.steps(RequestCycle.java:1316)
at org.apache.wicket.RequestCycle.request(RequestCycle.java:493)
at
org.apache.wicket.protocol.http.WicketFilter.doGet(WicketFilter.java:354)
at
org.apache.wicket.protocol.http.WicketFilter.doFilter(WicketFilter.java:194)
at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Application
FilterChain.java:186)
at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterCh
ain.java:157)
at
org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.ja
va:214)
at
org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.ja
va:178)
at
org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:126
)
at
org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:105
)
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:825)
at
org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.processConne
ction(Http11Protocol.java:731)
at
org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.jav
a:524)
at
org.apache.tomcat.util.net.LeaderFollowerWorkerThread.runIt(LeaderFollowerWo
rkerThread.java:80)
at
org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.jav
a:684)
at java.lang.Thread.run(Thread.java:595)
java.lang.Exception
at load.Load$LoadForm$1.isVisible(Load.java:46)
at org.apache.wicket.Component.toString(Component.java:3048)
at org.apache.wicket.Component.toString(Component.java:3027)
at java.lang.String.valueOf(String.java:2577)
at java.lang.StringBuffer.append(StringBuffer.java:220)
at org.apache.wicket.Page.componentRendered(Page.java:387)
at org.apache.wicket.Component.rendered(Component.java:2512)
at org.apache.wicket.Component.render(Component.java:2302)
at
org.apache.wicket.MarkupContainer.renderNext(MarkupContainer.java:1240)
at
org.apache.wicket.MarkupContainer.renderComponentTagBody(MarkupContainer.jav
a:1407)
at
org.apache.wicket.MarkupContainer.onComponentTagBody(MarkupContainer.java:13
44)
at
org.apache.wicket.markup.html.form.Form.onComponentTagBody(Form.java:1648)
at org.apache.wicket.Component.renderComponent(Component.java:2459)
at org.apache.wicket.MarkupContainer.onRender(MarkupContainer.java:1354)
at org.apache.wicket.markup.html.form.Form.onRender(Form.java:1687)
at org.apache.wicket.Component.render(Component.java:2296)
at org.apache.wicket.Component.renderComponent(Component.java:2399)
at
org.apache.wicket.ajax.AjaxRequestTarget.respondComponent(AjaxRequestTarget.
java:703)
at
org.apache.wicket.ajax.AjaxRequestTarget.respondComponents(AjaxRequestTarget
.java:605)
at
org.apache.wicket.ajax.AjaxRequestTarget.respond(AjaxRequestTarget.java:520)
at
org.apache.wicket.request.AbstractRequestCycleProcessor.respond(AbstractRequ
estCycleProcessor.java:103)
at
org.apache.wicket.RequestCycle.processEventsAndRespond(RequestCycle.java:117
2)
at org.apache.wicket.RequestCycle.step(RequestCycle.java:1241)
at org.apache.wicket.RequestCycle.steps(RequestCycle.java:1316)
at org.apache.wicket.RequestCycle.request(RequestCycle.java:493)
at
org.apache.wicket.protocol.http.WicketFilter.doGet(WicketFilter.java:354)
at
org.apache.wicket.protocol.http.WicketFilter.doFilter(WicketFilter.java:194)
at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Application
FilterChain.java:186)
at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterCh
ain.java:157)
at
org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.ja
va:214)
at
org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.ja
va:178)
at
org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:126
)
at
org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:105
)
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:825)
at
org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.processConne
ction(Http11Protocol.java:731)
at
org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.jav
a:524)
at
org.apache.tomcat.util.net.LeaderFollowerWorkerThread.runIt(LeaderFollowerWo
rkerThread.java:80)
at
org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.jav
a:684)
at java.lang.Thread.run(Thread.java:595)
java.lang.Exception
at load.Load$LoadForm$1.isVisible(Load.java:46)
at org.apache.wicket.Component.toString(Component.java:3048)
at org.apache.wicket.Component.toString(Component.java:3027)
at java.lang.String.valueOf(String.java:2577)
at java.lang.StringBuffer.append(StringBuffer.java:220)
at org.apache.wicket.Component.render(Component.java:2334)
at
org.apache.wicket.MarkupContainer.renderNext(MarkupContainer.java:1240)
at
org.apache.wicket.MarkupContainer.renderComponentTagBody(MarkupContainer.jav
a:1407)
at
org.apache.wicket.MarkupContainer.onComponentTagBody(MarkupContainer.java:13
44)
at
org.apache.wicket.markup.html.form.Form.onComponentTagBody(Form.java:1648)
at org.apache.wicket.Component.renderComponent(Component.java:2459)
at org.apache.wicket.MarkupContainer.onRender(MarkupContainer.java:1354)
at org.apache.wicket.markup.html.form.Form.onRender(Form.java:1687)
at org.apache.wicket.Component.render(Component.java:2296)
at org.apache.wicket.Component.renderComponent(Component.java:2399)
at
org.apache.wicket.ajax.AjaxRequestTarget.respondComponent(AjaxRequestTarget.
java:703)
at
org.apache.wicket.ajax.AjaxRequestTarget.respondComponents(AjaxRequestTarget
.java:605)
at
org.apache.wicket.ajax.AjaxRequestTarget.respond(AjaxRequestTarget.java:520)
at
org.apache.wicket.request.AbstractRequestCycleProcessor.respond(AbstractRequ
estCycleProcessor.java:103)
at
org.apache.wicket.RequestCycle.processEventsAndRespond(RequestCycle.java:117
2)
at org.apache.wicket.RequestCycle.step(RequestCycle.java:1241)
at org.apache.wicket.RequestCycle.steps(RequestCycle.java:1316)
at org.apache.wicket.RequestCycle.request(RequestCycle.java:493)
at
org.apache.wicket.protocol.http.WicketFilter.doGet(WicketFilter.java:354)
at
org.apache.wicket.protocol.http.WicketFilter.doFilter(WicketFilter.java:194)
at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Application
FilterChain.java:186)
at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterCh
ain.java:157)
at
org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.ja
va:214)
at
org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.ja
va:178)
at
org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:126
)
at
org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:105
)
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:825)
at
org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.processConne
ction(Http11Protocol.java:731)
at
org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.jav
a:524)
at
org.apache.tomcat.util.net.LeaderFollowerWorkerThread.runIt(LeaderFollowerWo
rkerThread.java:80)
at
org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.jav
a:684)
at java.lang.Thread.run(Thread.java:595)
java.lang.Exception
at load.Load$LoadForm$1.isVisible(Load.java:46)
at org.apache.wicket.Component.renderHead(Component.java:2528)
at org.apache.wicket.markup.html.WebPage$1.component(WebPage.java:432)
at
org.apache.wicket.MarkupContainer.visitChildren(MarkupContainer.java:821)
at
org.apache.wicket.MarkupContainer.visitChildren(MarkupContainer.java:836)
at
org.apache.wicket.MarkupContainer.visitChildren(MarkupContainer.java:861)
at org.apache.wicket.markup.html.WebPage.onDetach(WebPage.java:425)
at org.apache.wicket.Component.detach(Component.java:1075)
at
org.apache.wicket.ajax.AjaxRequestTarget.detach(AjaxRequestTarget.java:437)
at org.apache.wicket.RequestCycle.detach(RequestCycle.java:1046)
at org.apache.wicket.RequestCycle.steps(RequestCycle.java:1334)
at org.apache.wicket.RequestCycle.request(RequestCycle.java:493)
at
org.apache.wicket.protocol.http.WicketFilter.doGet(WicketFilter.java:354)
at
org.apache.wicket.protocol.http.WicketFilter.doFilter(WicketFilter.java:194)
at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Application
FilterChain.java:186)
at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterCh
ain.java:157)
at
org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.ja
va:214)
at
org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.ja
va:178)
at
org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:126
)
at
org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:105
)
at
org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java
:107)
at
org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:148)
at
org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:825)
at
org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.processConne
ction(Http11Protocol.java:731)
at
org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.jav
a:524)
at
org.apache.tomcat.util.net.LeaderFollowerWorkerThread.runIt(LeaderFollowerWo
rkerThread.java:80)
at
org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.jav
a:684)
at java.lang.Thread.run(Thread.java:595)
##### load() was called the second time here
public class Load extends WebPage
{
public Load()
{
super();
IModel receiveModel = new LoadableDetachableModel()
{
private int load = 1;
protected Object load()
{
load++;
System.out.println("##### load() called=" +
load);
return new Dummy();
}
};
add(new LoadForm("loadForm", new
CompoundPropertyModel(receiveModel)));
}
public final class LoadForm extends Form
{
public LoadForm(final String id, final IModel model)
{
super(id, model);
setOutputMarkupId(true);
Label firstName = new Label("firstName")
{
@Override
public boolean isVisible()
{
new Exception().printStackTrace();
return
!super.getModelObjectAsString().equals("");
}
};
firstName.setOutputMarkupId(true);
firstName.setOutputMarkupPlaceholderTag(true);
add(firstName);
Label lastName = new Label("lastName");
lastName.setOutputMarkupId(true);
add(lastName);
TextField testTextField = new TextField("textTest", new
Model());
testTextField.setOutputMarkupId(true);
testTextField.add(new
AjaxFormSubmitBehavior("onkeypress")
{
protected void onSubmit(AjaxRequestTarget
target)
{
target.addComponent(LoadForm.this);
}
protected void onError(AjaxRequestTarget target)
{
}
protected IAjaxCallDecorator
getAjaxCallDecorator()
{
return new AjaxCallDecorator()
{
public CharSequence
decorateScript(CharSequence script)
{
return
"if(window.event.keyCode == 13){" + script + "};return
false;";
}
};
}
});
add(testTextField);
}
}
public final class Dummy
{
private String firstName = "First Name";
private String lastName = "Last Name";
public String getFirstName()
{
return firstName;
}
public void setFirstName(String firstName)
{
this.firstName = firstName;
}
public String getLastName()
{
return lastName;
}
public void setLastName(String lastName)
{
this.lastName = lastName;
}
}
}
> -----Original Message-----
> From: Igor Vaynberg [mailto:[EMAIL PROTECTED]
> Sent: Monday, April 21, 2008 8:09 PM
> To: [email protected]
> Subject: Re: isVisible() with surrounding Markup and
> LoadableDetachableModel
>
>
> are you sure it is the same request and there is no redirect in
> between? do new Exception().printStackTrace() inside your isvisible to
> see where it is being called from
>
> -igor
>
>
> On Mon, Apr 21, 2008 at 7:15 PM, Warren
> <[EMAIL PROTECTED]> wrote:
> > I did this in isVisible() and load was called twice.
> >
> > public boolean isVisible()
> > {
> > return !super.getModelObjectAsString().equals("");
> >
> >
> > }
> >
> > > -----Original Message-----
> > > From: Igor Vaynberg [mailto:[EMAIL PROTECTED]
> > > Sent: Monday, April 21, 2008 7:08 PM
> > > To: [email protected]
> > > Subject: Re: isVisible() with surrounding Markup and
> > > LoadableDetachableModel
> > >
> > >
> > > loadable detachable model caches the value for the request, so even
> > > though getobject() is called multiple times, load() is only called
> > > once.
> > >
> > > -igor
> > >
> > >
> > > On Mon, Apr 21, 2008 at 6:59 PM, Warren
> > > <[EMAIL PROTECTED]> wrote:
> > > > I have a form that has a lot of labels with surrounding markup
> > > that needs to
> > > > be visible based on whether their is a value or empty string.
> > > The form uses
> > > > a CompoundPropertyModel based on a LoadableDetachableModel.
> > > How do I check
> > > > the model value of a Label in isVisible() without having load() of
> > > > LoadableDetachableModel being called twice.
> > > >
> > > >
> > > > <wicket:enclosure child="lineItem.item.department.departmentName">
> > > > <br>Dept: <span
> > > >
> wicket:id="lineItem.item.department.departmentName">Supplements</span>
> > > > </wicket:enclosure>
> > > >
> > > >
> > > > Label departmentName = new
> > > Label("lineItem.item.department.departmentName")
> > > > {
> > > > public boolean isVisible()
> > > > {
> > > > // How do I check value without load() being
> > > called again
> > > > }
> > > > };
> > > >
> > > >
> > > > Thanks,
> > > >
> > > > Warren Bell
> > > >
> > > >
> > > >
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> > > >
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> >
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