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Message-ID: <a440eccf0804160419o3f1e3f24s6943f130c580f55a@mail.gmail.com>
Date: Wed, 16 Apr 2008 12:19:53 +0100
From: "Rajini Sivaram" <rajinisivaram@googlemail.com>
To: dev@felix.apache.org
Subject: Re: Intermittent IllegalArgumentException while using declarative
 services
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Felix,

Thank you, I have raised a JIRA (
https://issues.apache.org/jira/browse/FELIX-539).

Unfortunately, since the failure is very intermittent, I haven't been able
to recreate it with SCR 1.0.1-SNAPSHOT yet. I will update the JIRA if I get
any more information.


On 4/16/08, Felix Meschberger <fmeschbe@gmail.com> wrote:
>
> Hi Rajini,
>
> Thanks for reporting this issue. Could you please file a JIRA for this.
>
> I basically agree that this is probably a synchronization issue, which
> might not be caught correctly right now.
>
> Could you also try the SCR 1.0.1-SNAPSHOT ? This contains some more
> logging, which could help resolve the issue.
>
> Thanks and Regards
> Felix
>
> Am Mittwoch, den 16.04.2008, 08:35 +0100 schrieb Rajini Sivaram:
> > Hello,
> >
> > I get an intermittent (very rare) exception while running tests using
> > declarative services under Felix.
> >
> > The exception stack trace shows:
> >
> > java.lang.IllegalArgumentException: Service object cannot be null.
> >         at
> org.apache.felix.framework.Felix.registerService(Felix.java:2661)
> >         at
> >
> org.apache.felix.framework.BundleContextImpl.registerService(BundleContextImpl.java:254)
> >         at
> >
> org.apache.felix.scr.impl.AbstractComponentManager.registerComponentService(AbstractComponentManager.java:598)
> >         at
> >
> org.apache.felix.scr.impl.AbstractComponentManager.activateInternal(AbstractComponentManager.java:426)
> >         at
> >
> org.apache.felix.scr.impl.AbstractComponentManager.enableInternal(AbstractComponentManager.java:323)
> >         at
> >
> org.apache.felix.scr.impl.AbstractComponentManager.access$000(AbstractComponentManager.java:36)
> >         at
> >
> org.apache.felix.scr.impl.AbstractComponentManager$1.run(AbstractComponentManager.java:94)
> >         at
> >
> org.apache.felix.scr.impl.ComponentActorThread.run(ComponentActorThread.java:85)
> >
> > Whenever I have seen the exception, logs suggest that the components
> were
> > being reactivated at around the same time. The stack trace from the
> debugger
> > when reactivate occurs shows:
> >
> >         ImmediateComponentManager.disposeImplementationObject(Object,
> > ComponentContext) line: 273
> >         ImmediateComponentManager.deleteComponent() line: 151
> >
> > ImmediateComponentManager(AbstractComponentManager).deactivateInternal()
> > line: 469
> >         ImmediateComponentManager(AbstractComponentManager).reactivate()
> > line: 142
> >         ImmediateComponentManager.reconfigure(Dictionary) line: 399
> >         ImmediateComponentManager$1.updated(Dictionary) line: 90
> >         ConfigurationManager$ManagedServiceUpdate.run() line: 863
> >         UpdateThread.run() line: 89
> >
> > Would it be possible to introduce some synchronization during
> > activate/deactivate to avoid the service/component being set to null? I
> am
> > using Felix framework 1.1.0-SNAPSHOT and SCR 1.0.0.
> >
> >
> > Thank you...
> >
> > Regards,
> >
> > Rajini
>
>


-- 
Thank you...

Regards,

Rajini

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