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Posted to commits@wicket.apache.org by "Hendy Irawan (JIRA)" <ji...@apache.org> on 2013/04/05 19:31:16 UTC
[jira] [Commented] (WICKET-5134) java.lang.NullPointerException at
org.apache.wicket.markup.html.form.Form.onComponentTag(Form.java:1520)
during Atmosphere eventbus.post() if using WebSockets
[ https://issues.apache.org/jira/browse/WICKET-5134?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13623822#comment-13623822 ]
Hendy Irawan commented on WICKET-5134:
--------------------------------------
Correction: Bug only reproducible on atmosphere-runtime 1.0.12.
Works well on atmosphere-runtime 1.0.8 (the default in wicket-atmosphere 0.8).
> java.lang.NullPointerException at org.apache.wicket.markup.html.form.Form.onComponentTag(Form.java:1520) during Atmosphere eventbus.post() if using WebSockets
> --------------------------------------------------------------------------------------------------------------------------------------------------------------
>
> Key: WICKET-5134
> URL: https://issues.apache.org/jira/browse/WICKET-5134
> Project: Wicket
> Issue Type: Bug
> Components: wicket-atmosphere
> Affects Versions: 6.6.0
> Environment: java version "1.7.0_15"
> OpenJDK Runtime Environment (IcedTea7 2.3.7) (7u15-2.3.7-0ubuntu1~12.10.1)
> OpenJDK 64-Bit Server VM (build 23.7-b01, mixed mode)
> nginx 1.3.15
> VMware vFabric tc Runtime 2.8.2.RELEASE/7.0.35.B.RELEASE
> wicket-atmosphere 0.8
> wicket 6.6.0
> atmosphere-runtime 1.0.8 & 1.0.12
> Reporter: Hendy Irawan
> Assignee: Emond Papegaaij
>
> If using WebSockets, it always throws the NPE below:
> {code}
> Unexpected RuntimeException
> Last cause: null
> Stacktrace
> Root cause:
> java.lang.NullPointerException
> at org.apache.wicket.markup.html.form.Form.onComponentTag(Form.java:1520)
> at org.apache.wicket.Component.internalRenderComponent(Component.java:2511)
> at org.apache.wicket.MarkupContainer.onRender(MarkupContainer.java:1488)
> at org.apache.wicket.Component.internalRender(Component.java:2370)
> at org.apache.wicket.Component.render(Component.java:2298)
> at org.apache.wicket.ajax.XmlAjaxResponse.writeComponent(XmlAjaxResponse.java:127)
> 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.AjaxRequestHandler.respond(AjaxRequestHandler.java:363)
> at org.apache.wicket.request.cycle.RequestCycle$HandlerExecutor.respond(RequestCycle.java:840)
> at org.apache.wicket.request.RequestHandlerStack.execute(RequestHandlerStack.java:64)
> at org.apache.wicket.request.RequestHandlerStack.execute(RequestHandlerStack.java:97)
> at org.apache.wicket.request.cycle.RequestCycle.execute(RequestCycle.java:254)
> at org.apache.wicket.request.cycle.RequestCycle.processRequest(RequestCycle.java:211)
> at org.apache.wicket.request.cycle.RequestCycle.processRequestAndDetach(RequestCycle.java:282)
> at org.apache.wicket.atmosphere.EventBus.post(EventBus.java:320)
> at org.apache.wicket.atmosphere.EventBus.postToSingleResource(EventBus.java:297)
> at org.apache.wicket.atmosphere.EventBus.post(EventBus.java:272)
> at com.soluvas.story.impl.StoryManagerImpl.publish(StoryManagerImpl.java:107)
> at id.co.bippo.comment.story.ProductCommentedStoryPoster.createStoriesAndPublish(ProductCommentedStoryPoster.java:71)
> at java.lang.reflect.Method.invoke(Method.java:601)
> at com.google.common.eventbus.EventHandler.handleEvent(EventHandler.java:74)
> at com.google.common.eventbus.SynchronizedEventHandler.handleEvent(SynchronizedEventHandler.java:45)
> at com.google.common.eventbus.EventBus.dispatch(EventBus.java:314)
> at com.google.common.eventbus.AsyncEventBus.access$001(AsyncEventBus.java:34)
> at com.google.common.eventbus.AsyncEventBus$1.run(AsyncEventBus.java:100)
> at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
> at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
> at java.lang.Thread.run(Thread.java:722)
> display page view
> {code}
> Another stacktrace:
> {code}
> Unexpected RuntimeException
> Last cause: null
> Stacktrace
> Root cause:
> java.lang.NullPointerException
> at org.apache.wicket.markup.html.form.Form.onComponentTag(Form.java:1520)
> at org.apache.wicket.Component.internalRenderComponent(Component.java:2511)
> at org.apache.wicket.MarkupContainer.onRender(MarkupContainer.java:1488)
> at org.apache.wicket.Component.internalRender(Component.java:2370)
> at org.apache.wicket.Component.render(Component.java:2298)
> at org.apache.wicket.ajax.XmlAjaxResponse.writeComponent(XmlAjaxResponse.java:127)
> 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.AjaxRequestHandler.respond(AjaxRequestHandler.java:363)
> at org.apache.wicket.request.cycle.RequestCycle$HandlerExecutor.respond(RequestCycle.java:840)
> at org.apache.wicket.request.RequestHandlerStack.execute(RequestHandlerStack.java:64)
> at org.apache.wicket.request.RequestHandlerStack.execute(RequestHandlerStack.java:97)
> at org.apache.wicket.request.cycle.RequestCycle.execute(RequestCycle.java:254)
> at org.apache.wicket.request.cycle.RequestCycle.processRequest(RequestCycle.java:211)
> at org.apache.wicket.request.cycle.RequestCycle.processRequestAndDetach(RequestCycle.java:282)
> at org.apache.wicket.atmosphere.EventBus.post(EventBus.java:320)
> at org.apache.wicket.atmosphere.EventBus.postToSingleResource(EventBus.java:297)
> at org.apache.wicket.atmosphere.EventBus.post(EventBus.java:272)
> at com.soluvas.story.impl.StoryManagerImpl.publish(StoryManagerImpl.java:107)
> at id.co.bippo.comment.story.ProductCommentedStoryPoster.createStoriesAndPublish(ProductCommentedStoryPoster.java:71)
> at java.lang.reflect.Method.invoke(Method.java:601)
> at com.google.common.eventbus.EventHandler.handleEvent(EventHandler.java:74)
> at com.google.common.eventbus.SynchronizedEventHandler.handleEvent(SynchronizedEventHandler.java:45)
> at com.google.common.eventbus.EventBus.dispatch(EventBus.java:314)
> at com.google.common.eventbus.AsyncEventBus.access$001(AsyncEventBus.java:34)
> at com.google.common.eventbus.AsyncEventBus$1.run(AsyncEventBus.java:100)
> at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
> at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
> at java.lang.Thread.run(Thread.java:722)
> display page view
> {code}
> This bug is always reproducible in my configuration.
> It doesn't occur if comet/long-polling is used instead of websockets. Which means setting below will not trigger the bug:
> {code}
> <init-param>
> <param-name>org.atmosphere.useWebSocket</param-name>
> <param-value>false</param-value>
> </init-param>
> {code}
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