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From Thomas Frühbeck <>
Subject Re: Is it truly impossible to lookup @ViewScoped etc with BeanProvider?
Date Thu, 23 Jun 2016 05:29:35 GMT
this sounds a bit strange indeed :-)

your write: "this thread is also disconnected from my Bean and it fails 
to look it up"

Anything in the session/view scopes will have to be serializable, and a 
thread isnt.
A solution I could imagine is an @ApplicationScoped bean as 
ThreadReferenceHolder HashMap<String,Runnable> to hold and manage the 
spawned threads.
Your ViewScoped beans then only need to hold the thread reference keys - 
now they are Serializable.

The ThreadReferenceHolder will be injected on each invocation of your 
ViewScoped beans.

So you have a reference from ViewScoped beans to the threads, the other 
way round I cannot imagine it will work correctly..


Am 21.06.2016 um 14:10 schrieb Karl Kildén:
> So it is impossible then :-)
> The problem is that several slow things needs to be done from a JSF Bean. I
> can't async it because the service the bean calls is @ViewAccessScoped and
> stateful.
> I have a Bean that I want to start the thread from the Bean it is not a
> problem but when I create a new thread this thread is also disconnected
> from my Bean and it fails to look it up...
> Will take me ages to fix this project properly so desperate times calls for
> strange hacks :-)
> On 21 June 2016 at 12:39, Thomas Andraschko <>
> wrote:
>> BeanProvider should work fine with any scope.
>> Of course you can't receive a viewscoped bean from another thread/request.
>> 2016-06-21 11:52 GMT+02:00 Karl Kildén <>:
>>> I have a RequestScoped Bean that needs to split the workload basically
>> and
>>> the thread needs to lookup using the Bean that starts the thread so to
>>> speak...
>>> On 21 June 2016 at 11:24, Karl Kildén <> wrote:
>>>> Hello!
>>>> If a project made a mistake in the architecture and needs to lookup JSF
>>>> scoped instances from the BeanProvider, is this possible in any way
>>>> (however hacky?).
>>>> The problem is that since the request thread is needed to lookup the
>>>> instance it does not work from a thread.
>>>> cheers

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