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Emond Papegaaij edited comment on WICKET-4656 at 7/16/12 7:35 AM: ------------------------------------------------------------------ This seems to be caused by the upgrade to Atmosphere 1.0.0-beta3. I've reported an issue ( https://github.com/Atmosphere/atmosphere/issues/513 ). For now, you can work around the problem by forcing atmosphere to version 0.9.5 using maven dependency management (0.9.6 and 0.9.7 are broken as well). was (Author: papegaaij): This seems to be caused by the upgrade to Atmosphere 1.0.0-beta3. I've reported an issue ( https://github.com/Atmosphere/atmosphere/issues/513 ). For now, you can work around the problem by forcing atmosphere to version 0.9.7 using maven dependency management. > Atmosphere example doesn't work due to missing 'page' when creating > AjaxRequestTarget > ------------------------------------------------------------------------------------- > > Key: WICKET-4656 > URL: https://issues.apache.org/jira/browse/WICKET-4656 > Project: Wicket > Issue Type: Bug > Components: wicket-atmosphere > Affects Versions: 6.0.0-beta3 > Reporter: Martin Grigorov > Assignee: Emond Papegaaij > > Testing beta3 revealed this error when trying to use Wicket Atmosphere: > ERROR - DefaultExceptionMapper - Unexpected error occurred > java.lang.IllegalArgumentException: Argument 'page' may not be null. > at org.apache.wicket.util.lang.Args.notNull(Args.java:41) > at > org.apache.wicket.ajax.AjaxRequestHandler.<init>(AjaxRequestHandler.java:111) > at > org.apache.wicket.protocol.http.WebApplication$DefaultAjaxRequestTargetProvider.get(WebApplication.java:956) > at > org.apache.wicket.protocol.http.WebApplication$DefaultAjaxRequestTargetProvider.get(WebApplication.java:949) > at > org.apache.wicket.protocol.http.WebApplication.newAjaxRequestTarget(WebApplication.java:800) > at > org.apache.wicket.atmosphere.AtmosphereRequestHandler.respond(AtmosphereRequestHandler.java:65) > at > org.apache.wicket.request.cycle.RequestCycle$HandlerExecutor.respond(RequestCycle.java:814) > at > org.apache.wicket.request.RequestHandlerStack.execute(RequestHandlerStack.java:64) > .... -- This message is automatically generated by JIRA. If you think it was sent incorrectly, please contact your JIRA administrators: https://issues.apache.org/jira/secure/ContactAdministrators!default.jspa For more information on JIRA, see: http://www.atlassian.com/software/jira