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https://issues.apache.org/jira/browse/WICKET-5282?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Emond Papegaaij closed WICKET-5282.
-----------------------------------
> o.a.w.protocol.http.servlet.ServletWebRequest.getContextRelativeUrl throws
> NPE when posting EventBus inside Atmosphere request
> ------------------------------------------------------------------------------------------------------------------------------
>
> Key: WICKET-5282
> URL: https://issues.apache.org/jira/browse/WICKET-5282
> Project: Wicket
> Issue Type: Bug
> Components: wicket, wicket-atmosphere
> Affects Versions: 6.9.1, 6.10.0
> Environment: happens on wicket 6.9.1 and 6.10.1 using
> wicket-atmosphere 0.11, atmosphere-runtime 1.0.13
> (not yet tested with wicket-atmosphere 0.13)
> Tomcat 7.0
> Reporter: Hendy Irawan
> Assignee: Emond Papegaaij
> Fix For: 6.13.0
>
>
> Sometimes happens when during an Wicket-Atmosphere request, i.e. inside an
> Atmosphere's @Subscribe handler, we post an object to Wicket-Atmosphere's
> EventBus.
> In all cases where it happens, it happens when EventBus.post called from a
> non-Wicket thread.
> {code}
> 08:17:46.460 | ERROR | oryBean_Worker-9 | c.g.c.e.E.default |
> .google.common.eventbus.EventBus 316 | Could not dispatch event: Job
> DEFAULT.loadToArchive execution complete at 08:17:46 07/22/2013 and reports:
> exitCode=COMPLETED;exitDescription=Loaded 1 CSVs to Archive as
> archived/2013-07-22T08:17:46.098-04:00.csv, 1 point times made stale:
> [2013-07-22T12:15:00.000Z] to handler [wrapper public void
> org.soluvas.web.site.AtmosphereApplication.bridgeToAtmosphere(java.lang.Object)]
> java.lang.reflect.InvocationTargetException: null
> at sun.reflect.GeneratedMethodAccessor66.invoke(Unknown Source)
> ~[na:na]
> at
> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
> ~[na:1.7.0_15]
> at java.lang.reflect.Method.invoke(Method.java:601) ~[na:1.7.0_15]
> at
> com.google.common.eventbus.EventHandler.handleEvent(EventHandler.java:74)
> ~[guava-14.0.1.jar:na]
> at
> com.google.common.eventbus.SynchronizedEventHandler.handleEvent(SynchronizedEventHandler.java:45)
> ~[guava-14.0.1.jar:na]
> at com.google.common.eventbus.EventBus.dispatch(EventBus.java:314)
> [guava-14.0.1.jar:na]
> at
> com.google.common.eventbus.EventBus.dispatchQueuedEvents(EventBus.java:296)
> [guava-14.0.1.jar:na]
> at com.google.common.eventbus.EventBus.post(EventBus.java:267)
> [guava-14.0.1.jar:na]
> at
> com.quikdo.freq.job.EventBusJobListener.jobWasExecuted(EventBusJobListener.java:54)
> [EventBusJobListener.class:na]
> at
> org.quartz.core.QuartzScheduler.notifyJobListenersWasExecuted(QuartzScheduler.java:2020)
> [quartz-2.2.0.jar:na]
> at
> org.quartz.core.JobRunShell.notifyJobListenersComplete(JobRunShell.java:355)
> [quartz-2.2.0.jar:na]
> at org.quartz.core.JobRunShell.run(JobRunShell.java:229)
> [quartz-2.2.0.jar:na]
> at
> org.quartz.simpl.SimpleThreadPool$WorkerThread.run(SimpleThreadPool.java:560)
> [quartz-2.2.0.jar:na]
> Caused by: java.lang.NullPointerException: null
> at
> org.apache.wicket.protocol.http.servlet.ServletWebRequest.getContextRelativeUrl(ServletWebRequest.java:194)
> ~[wicket-core-6.9.1.jar:6.9.1]
> at
> org.apache.wicket.protocol.http.servlet.ServletWebRequest.<init>(ServletWebRequest.java:113)
> ~[wicket-core-6.9.1.jar:6.9.1]
> at
> org.apache.wicket.protocol.http.servlet.ServletWebRequest.<init>(ServletWebRequest.java:83)
> ~[wicket-core-6.9.1.jar:6.9.1]
> at
> org.apache.wicket.protocol.http.WebApplication.newWebRequest(WebApplication.java:448)
> ~[wicket-core-6.9.1.jar:6.9.1]
> at org.apache.wicket.atmosphere.EventBus.post(EventBus.java:337)
> ~[wicket-atmosphere-0.11.jar:0.11]
> at
> org.apache.wicket.atmosphere.EventBus.postToSingleResource(EventBus.java:317)
> ~[wicket-atmosphere-0.11.jar:0.11]
> at org.apache.wicket.atmosphere.EventBus.post(EventBus.java:292)
> ~[wicket-atmosphere-0.11.jar:0.11]
> at
> org.soluvas.web.site.AtmosphereApplication.bridgeToAtmosphere(AtmosphereApplication.java:53)
> ~[org.soluvas.web.site-2.1.0-SNAPSHOT.jar:na]
> ... 13 common frames omitted
> 08:17:46.465 | ERROR | ryBean_Worker-10 | c.g.c.e.E.default |
> .google.common.eventbus.EventBus 316 | Could not dispatch event: Job
> DEFAULT.locationVisitorAggregator fired (by trigger DEFAULT.MT_3jn71esi0mkgo)
> at: 08:17:46 07/22/2013 to handler [wrapper public void
> org.soluvas.web.site.AtmosphereApplication.bridgeToAtmosphere(java.lang.Object)]
> java.lang.reflect.InvocationTargetException: null
> at sun.reflect.GeneratedMethodAccessor66.invoke(Unknown Source)
> ~[na:na]
> at
> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
> ~[na:1.7.0_15]
> at java.lang.reflect.Method.invoke(Method.java:601) ~[na:1.7.0_15]
> at
> com.google.common.eventbus.EventHandler.handleEvent(EventHandler.java:74)
> ~[guava-14.0.1.jar:na]
> at
> com.google.common.eventbus.SynchronizedEventHandler.handleEvent(SynchronizedEventHandler.java:45)
> ~[guava-14.0.1.jar:na]
> at com.google.common.eventbus.EventBus.dispatch(EventBus.java:314)
> [guava-14.0.1.jar:na]
> at
> com.google.common.eventbus.EventBus.dispatchQueuedEvents(EventBus.java:296)
> [guava-14.0.1.jar:na]
> at com.google.common.eventbus.EventBus.post(EventBus.java:267)
> [guava-14.0.1.jar:na]
> at
> com.quikdo.freq.job.EventBusJobListener.jobToBeExecuted(EventBusJobListener.java:37)
> [EventBusJobListener.class:na]
> at
> org.quartz.core.QuartzScheduler.notifyJobListenersToBeExecuted(QuartzScheduler.java:1980)
> [quartz-2.2.0.jar:na]
> at
> org.quartz.core.JobRunShell.notifyListenersBeginning(JobRunShell.java:339)
> [quartz-2.2.0.jar:na]
> at org.quartz.core.JobRunShell.run(JobRunShell.java:174)
> [quartz-2.2.0.jar:na]
> at
> org.quartz.simpl.SimpleThreadPool$WorkerThread.run(SimpleThreadPool.java:560)
> [quartz-2.2.0.jar:na]
> Caused by: java.lang.NullPointerException: null
> at
> org.apache.wicket.protocol.http.servlet.ServletWebRequest.getContextRelativeUrl(ServletWebRequest.java:194)
> ~[wicket-core-6.9.1.jar:6.9.1]
> at
> org.apache.wicket.protocol.http.servlet.ServletWebRequest.<init>(ServletWebRequest.java:113)
> ~[wicket-core-6.9.1.jar:6.9.1]
> at
> org.apache.wicket.protocol.http.servlet.ServletWebRequest.<init>(ServletWebRequest.java:83)
> ~[wicket-core-6.9.1.jar:6.9.1]
> at
> org.apache.wicket.protocol.http.WebApplication.newWebRequest(WebApplication.java:448)
> ~[wicket-core-6.9.1.jar:6.9.1]
> at org.apache.wicket.atmosphere.EventBus.post(EventBus.java:337)
> ~[wicket-atmosphere-0.11.jar:0.11]
> at
> org.apache.wicket.atmosphere.EventBus.postToSingleResource(EventBus.java:317)
> ~[wicket-atmosphere-0.11.jar:0.11]
> at org.apache.wicket.atmosphere.EventBus.post(EventBus.java:292)
> ~[wicket-atmosphere-0.11.jar:0.11]
> at
> org.soluvas.web.site.AtmosphereApplication.bridgeToAtmosphere(AtmosphereApplication.java:53)
> ~[org.soluvas.web.site-2.1.0-SNAPSHOT.jar:na]
> ... 13 common frames omitted
> {code}
> The NPE happens inside wicket-core, so hopefully wicket-core can give more
> detailed exception why it's doing so.
> And {{org.apache.wicket.atmosphere.EventBus.post}} should probably check its
> arguments that may cause NPE on wicket-core's part.
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