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https://issues.apache.org/jira/browse/WICKET-4928?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Anders Roxenhag updated WICKET-4928:
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Attachment: websocket-target-add-link.zip
> Error adding links to WebSocketRequestHandler
> ---------------------------------------------
>
> Key: WICKET-4928
> URL: https://issues.apache.org/jira/browse/WICKET-4928
> Project: Wicket
> Issue Type: Bug
> Components: wicket-native-websocket
> Affects Versions: 6.4.0
> Reporter: Anders Roxenhag
> Assignee: Martin Grigorov
> Attachments: websocket-target-add-link.zip
>
>
> I get a nullpointer when trying to add newly created ajax links to the
> WebSocketRequestHandler because of the lack of a base url. Doing the same
> with an AjaxRequestTarget works fine. See attached quickstart.
> ERROR - AbstractWebSocketProcessor - An error occurred during processing of a
> WebSocket message
> java.lang.NullPointerException
> at
> org.apache.wicket.ajax.AbstractDefaultAjaxBehavior.renderHead(AbstractDefaultAjaxBehavior.java:97)
> at
> org.apache.wicket.ajax.AjaxEventBehavior.renderHead(AjaxEventBehavior.java:79)
> at org.apache.wicket.Component.renderHead(Component.java:2704)
> at
> org.apache.wicket.ajax.AbstractAjaxResponse$1.component(AbstractAjaxResponse.java:476)
> at
> org.apache.wicket.ajax.AbstractAjaxResponse$1.component(AbstractAjaxResponse.java:470)
> at org.apache.wicket.util.visit.Visits.visitChildren(Visits.java:144)
> at org.apache.wicket.util.visit.Visits.visitChildren(Visits.java:162)
> at org.apache.wicket.util.visit.Visits.visitChildren(Visits.java:123)
> at org.apache.wicket.util.visit.Visits.visitChildren(Visits.java:192)
> at
> org.apache.wicket.MarkupContainer.visitChildren(MarkupContainer.java:874)
> at
> org.apache.wicket.ajax.AbstractAjaxResponse.writeHeaderContribution(AbstractAjaxResponse.java:469)
> at
> org.apache.wicket.ajax.XmlAjaxResponse.writeComponent(XmlAjaxResponse.java:101)
> at
> org.apache.wicket.ajax.AbstractAjaxResponse.writeComponents(AbstractAjaxResponse.java:214)
> at
> org.apache.wicket.ajax.AbstractAjaxResponse.writeTo(AbstractAjaxResponse.java:145)
> at
> org.apache.wicket.ajax.WebSocketRequestHandler.respond(WebSocketRequestHandler.java:257)
> at
> org.apache.wicket.protocol.ws.api.AbstractWebSocketProcessor.broadcastMessage(AbstractWebSocketProcessor.java:185)
> at
> org.apache.wicket.protocol.ws.api.AbstractWebSocketProcessor.onMessage(AbstractWebSocketProcessor.java:89)
> at
> org.apache.wicket.protocol.ws.jetty.JettyWebSocketProcessor$JettyWebSocket.onMessage(JettyWebSocketProcessor.java:44)
> at
> org.eclipse.jetty.websocket.WebSocketConnectionRFC6455$WSFrameHandler.onFrame(WebSocketConnectionRFC6455.java:845)
> at
> org.eclipse.jetty.websocket.WebSocketParserRFC6455.parseNext(WebSocketParserRFC6455.java:359)
> at
> org.eclipse.jetty.websocket.WebSocketConnectionRFC6455.handle(WebSocketConnectionRFC6455.java:235)
> at
> org.eclipse.jetty.io.nio.SelectChannelEndPoint.handle(SelectChannelEndPoint.java:606)
> at
> org.eclipse.jetty.io.nio.SelectChannelEndPoint$1.run(SelectChannelEndPoint.java:46)
> at
> org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:603)
> at
> org.eclipse.jetty.util.thread.QueuedThreadPool$3.run(QueuedThreadPool.java:538)
> at java.lang.Thread.run(Thread.java:680)
> I have a similar kind of problem using wicket-cdi and websockets trying to
> use request scoped injected beans. I suppose that's natural though but it
> would be awesome if it worked. (Example not included in the quickstart)
> org.jboss.weld.context.ContextNotActiveException: WELD-001303 No active
> contexts for scope type javax.enterprise.context.RequestScoped
> at
> org.jboss.weld.manager.BeanManagerImpl.getContext(BeanManagerImpl.java:590)
> at
> org.jboss.weld.bean.proxy.ContextBeanInstance.getInstance(ContextBeanInstance.java:71)
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