Now it works :))
Thank you very much for your prompt support.
Am 15.11.2012 17:15, schrieb Martin Grigorov:
> Yes. There is no need to add it again and again for each request.
>
>
> On Thu, Nov 15, 2012 at 6:11 PM, Karl-Heinz Golz <
> karl-heinz.g...@t-online.de> wrote:
>
>>
>> Yes, I do it in getHomePage:
>>
>> public class StartApplication extends WebApplication {
>>
>> @Override
>> public void init() {
>> . . .
>> }
>>
>> @Override
>> public Class<? extends Page> getHomePage() {
>>
>> IPackageResourceGuard packageResourceGuard =
>> getResourceSettings().getPackageResourceGuard();
>> if (packageResourceGuard instanceof SecurePackageResourceGuard)
>> {
>> SecurePackageResourceGuard guard = (SecurePackageResourceGuard)
>> packageResourceGuard;
>> guard.addPattern("+*.htm");
>> }
>>
>> return Anmelden.class;
>> }
>> }
>>
>>
>> I have to move it to Init?
>>
>>
>> Am 15.11.2012 17:02, schrieb Martin Grigorov:
>>> Hi,
>>>
>>> Do you add white-list patterns to SecurePackageResourceGuard somewhere
>>> outside of MyApplication#init() ?
>>>
>>> The exception says that SecurePackageResourceGuard's patterns list is
>> being
>>> modified during the request processing.
>>> It should be changed only at application startup.
>>>
>>>
>>> On Thu, Nov 15, 2012 at 5:52 PM, Karl-Heinz Golz <
>>> karl-heinz.g...@t-online.de> wrote:
>>>
>>>>
>>>> hello,
>>>>
>>>> I'm using wicket 1.5.9.
>>>> My application shows some dynamic pictures via fancybox (native without
>>>> e.g. visural wicket).
>>>> That works almost well, i.e. you click the small picture and you get the
>>>> big picture via fancybox. And you can click through the show (up to 3
>>>> pictures) properly.
>>>>
>>>> But sometimes (about 1 of 10) when you click on a picture a
>>>> ConcurrentModificationException is thrown.
>>>>
>>>> Below you find the exception and an extract of my coding.
>>>>
>>>> Maybe someone can give me a hint what's wrong.
>>>> Many thanks in advance
>>>> Karl-Heinz
>>>>
>>>> org.apache.wicket.DefaultExceptionMapper: Unexpected error occurred
>>>> java.util.ConcurrentModificationException
>>>> at
>> java.util.ArrayList$Itr.checkForComodification(ArrayList.java:819)
>>>> at java.util.ArrayList$ListItr.previous(ArrayList.java:846)
>>>> at
>>>>
>>>>
>> org.apache.wicket.util.collections.ReverseListIterator.next(ReverseListIterator.java:51)
>>>> at
>>>>
>>>>
>> org.apache.wicket.markup.html.SecurePackageResourceGuard.acceptAbsolutePath(SecurePackageResourceGuard.java:179)
>>>> at
>>>>
>>>>
>> org.apache.wicket.markup.html.PackageResourceGuard.accept(PackageResourceGuard.java:71)
>>>> at
>>>>
>>>>
>> org.apache.wicket.request.resource.PackageResource.accept(PackageResource.java:468)
>>>> at
>>>>
>>>>
>> org.apache.wicket.request.resource.PackageResource.internalGetResourceStream(PackageResource.java:445)
>>>> at
>>>>
>>>>
>> org.apache.wicket.request.resource.PackageResource.getResourceStream(PackageResource.java:410)
>>>> at
>>>>
>>>>
>> org.apache.wicket.request.resource.PackageResource.newResourceResponse(PackageResource.java:240)
>>>> at
>>>>
>>>>
>> org.apache.wicket.request.resource.AbstractResource.respond(AbstractResource.java:497)
>>>> at
>>>>
>>>>
>> org.apache.wicket.request.handler.resource.ResourceRequestHandler.respond(ResourceRequestHandler.java:74)
>>>> at
>>>>
>>>>
>> org.apache.wicket.request.handler.resource.ResourceReferenceRequestHandler.respond(ResourceReferenceRequestHandler.java:105)
>>>> at
>>>>
>>>>
>> org.apache.wicket.request.cycle.RequestCycle$HandlerExecutor.respond(RequestCycle.java:784)
>>>> at
>>>>
>>>>
>> org.apache.wicket.request.RequestHandlerStack.execute(RequestHandlerStack.java:64)
>>>> at
>>>>
>> org.apache.wicket.request.cycle.RequestCycle.execute(RequestCycle.java:255)
>>>> at
>>>>
>>>>
>> org.apache.wicket.request.cycle.RequestCycle.processRequest(RequestCycle.java:212)
>>>> at
>>>>
>>>>
>> org.apache.wicket.request.cycle.RequestCycle.processRequestAndDetach(RequestCycle.java:283)
>>>> at
>>>>
>>>>
>> org.apache.wicket.protocol.http.WicketFilter.processRequest(WicketFilter.java:188)
>>>> at
>>>>
>>>>
>> org.apache.wicket.protocol.http.WicketFilter.doFilter(WicketFilter.java:244)
>>>> at
>>>>
>>>>
>> org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243)
>>>> at
>>>>
>>>>
>> org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
>>>> at
>>>>
>>>>
>> org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:225)
>>>> at
>>>>
>>>>
>> org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:123)
>>>> at
>>>>
>>>>
>> org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:472)
>>>> at
>>>>
>>>>
>> org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:168)
>>>> at
>>>>
>>>>
>> org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:98)
>>>> at
>>>>
>> org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:927)
>>>> at
>>>>
>>>>
>> org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:118)
>>>> at
>>>>
>> org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:407)
>>>> at
>>>>
>>>>
>> org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1001)
>>>> at
>>>>
>>>>
>> org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:585)
>>>> at
>>>>
>>>>
>> org.apache.tomcat.util.net.AprEndpoint$SocketProcessor.run(AprEndpoint.java:1770)
>>>> at
>>>>
>>>>
>> java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1110)
>>>> at
>>>>
>>>>
>> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:603)
>>>> at java.lang.Thread.run(Thread.java:722)
>>>>
>>>>
>>>>
>>>> <a wicket:id="img1big" >
>>>> <img wicket:id="img1small" title="" alt="" />
>>>> </a>
>>>>
>>>> -------------------
>>>>
>>>> Link<Object> linkImg1 = new Link<Object>("img1big") {
>>>> private static final long serialVersionUID = 1L;
>>>>
>>>> @Override
>>>> public void onClick() {
>>>> setResponsePage(new ShowImage(fall.getImage1Big(),
>>>> fall.getImage1ContentType(),
>>>> fall.getImage1Title()));
>>>> }
>>>> };
>>>> add(linkImg1);
>>>>
>>>> Image img1 = new NonCachingImage("img1small");
>>>> if (fall.getImage1Small() != null) {
>>>> img1.setImageResource(new
>>>> ByteArrayResource(fall.getImage1ContentType(), fall.getImage1Small()));
>>>> linkImg1.add(AttributeModifier.replace("rel", "fancyshow"));
>>>> } else {
>>>> img1.setImageResourceReference(new
>>>> PackageResourceReference(StartPage.class, "images/null.png"));
>>>> img1.add(AttributeModifier.replace("class", "hideme"));
>>>> }
>>>> linkImg1.add(img1);
>>>>
>>>>
>>>> --------------------------------------------
>>>> _ShowImage.html_
>>>>
>>>> <body>
>>>> <div>
>>>> <p><img wicket:id="imgid" alt="" /></p>
>>>> <br />
>>>> <p wicket:id="imgtitle" ></p>
>>>> </div>
>>>> </body>
>>>>
>>>> -------------------
>>>> _ShowImage.class_
>>>>
>>>> public class ShowImage extends WebPage implements Serializable {
>>>> private static final long serialVersionUID = 1L;
>>>>
>>>> public ShowImage (byte[] img, String contentType, String title) {
>>>> Image img2 = new Image("imgid", new ByteArrayResource(contentType,
>>>> img));
>>>> add(img2);
>>>>
>>>> Label title2 = new Label("imgtitle", title);
>>>> add(title2);
>>>> }
>>>> }
>>>>
>>>>
>>>>
>>>>
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>>>>
>>>>
>>>
>>>
>>
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>
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