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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