Re: no such object in table

Dan Creswell <[email protected]>
Newsgroups gmane.comp.java.sun.jini
Message-ID <[email protected]>
Hi Chaps,

Mark Brouwer wrote:
> Rikard Elofsson wrote:
>> Mark Brouwer skrev:
>>> This means that at the JVM you exported your service the RMI runtime is
>>> still listening on that port (the client is able to connect to), but the
>>> object once exported (your service) has gone. The exception you get
>>> means the RMI runtime can't find a service with a particular object
>>> identifier.
>>
>> Thanks! I really need to learn not to be sloppy about object
>> references... I'll read up on DGC but thanks so far for the help!
>
> Rikard,
>
> FYI personally I don't enable DGC as I want to have my service up
> regardless of whether there are any consumers any given moment and it
> has some drawbacks as stated in the specs. I always make sure an
> exported object is strongly referenced so it won't be GCed (actually the
> framework I'm using does that for me but the idea stays the same).
>
> I think Gregg and Dan discussed this subject recently, but I'm not able
> to find the reference to that discussion that quickly, maybe they can
> provide a pointer.

Yeah, so Gregg and I were talking specifically about keeping the
back-end element of a service alive when run from Service Starter.  We
discussed all of that here:

http://archives.java.sun.com/cgi-bin/wa?A1=ind0701&L=jini-users#32

However, given the symptoms of your problem there are multiple potential
causes so we need to figure out exactly what causes it.  i.e.  Why the
back-end service is no longer present.

So, it _might_ be DGC but it _might_ be something else such as the way
you are doing development and testing.

Hope that helps,

Dan.


> --
> Mark
>
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