Nokia N80 / J2ME problems

[o66183]

Hi,

I'm writing J2ME applications since some years now and my applications, which are tested against 120 devices (the new 3250 60rd as well) right now (IM, banking), don't really work with Nokia N80 and V 3.0614.01 (31.3.2006).

It crashes unpredictable and freezes within different actions using my J2ME MIDP 2.0 apps.

Does somebody expierience comparable behaviour ?

The N80 is no prototype, it was bought in an ordinary shop.

Thanx
Olli

[o66183]

Meanwhile I found out that's always an java.lang.OutOfMemory error that interrupts nearly every J2ME application on the N80 with the given firmware above.
Anybody seen anything similar.
Is there any workaround ?

[mostakhd]

Hi
OutOfMemory means that you donot have enough space in RAM for your application. Try to get the availible memory on your device, maybe it is good idea to call System.cc(), make sure about the reusing the object in your code...
BR
Ali

[mostakhd]

Olli can you provide some more information? e.g at wha stage do you get such error?
BR
Ali

[o66183]

Thanks for your your answer.

It's not predictable (from my point of view).
It happens it different situations and btw. the app. is tested on nearly 100 devices, e.g. the N70, 6680 or the new Series 60 3250.
And there are a lot of System.gc()s within :-).

None of them has any memory problems, even the small and older 40series mobiles.

So there must be something special in the new firmware.

What information do you need ?

Olli

[mostakhd]

Olli, we tested and every thing seems to be ok, but we will still investigate the problem.
BR
Ali

[o66183]

Did you use exactly the same firmware I did ? If so then my handset seems to be broken.
Olli

[lbauer]

I'm experiencing a similar issue. I have a J2ME application that works reliably on 6630's, N70's, and N90's but always crashes with no error message on the N80 (which also has the 3.0614.0.1 firmware). To say that the N80 is a disappointment as a platform for J2ME apps is an understatement.

Cheers,

-Lujo

[o66183]

Try to catch a 'Throwable' or a 'java.lang.OutOfMemoryError' and if you'll get the OutOfMemoryError, it's the same issue I have, which I have on E60 and a N71, N91, too (because OutOfMemoryError runs tru your code due to it's unchecked)

Keen on knowning if it's the same error due to I've filed two professionell support requests and yet no official statement to my concerns received.

Oliver

[lbauer]

Try to catch a 'Throwable' or a 'java.lang.OutOfMemoryError' and if you'll get the OutOfMemoryError, it's the same issue I have, which I have on E60 and a N71, N91, too (because OutOfMemoryError runs tru your code due to it's unchecked)

Keen on knowning if it's the same error due to I've filed two professionell support requests and yet no official statement to my concerns received.

Oliver

I think I'm experiencing a different problem. The section of code where the problem happens is encased in a try-catch statement that attempts to catch Throwables, but no Throwable is thrown. At the point when the error occurrs the heap size is ~2.5MB with about 800KB not used.

-Lujo

[o66183]

In all my cases there is always heap free > 180 KB, nevertheless OutOfMemoryError is throw.
And strange is, my heap is never higher than 800 kb alltogether in my N80 (is is because I have no memory within?)

P.S. In my N80 J2ME ends sometimes even with out the chance to catch any exception. Then the system states "unhandled exception. Want to stop, start bla, bla..."

[o66183]

memory card within, I meant :-)
Oliver

[Amr_Monsef]

Hi,
I am now facing the same issue with my application that is used to work correctly on nearly all Nokia phones(since 2 ears), but now it crashes with outOfMemory error and I can't understand how does this come?, as I expected S60 3rd to be more powerfull and stable , not like that.
The N80 firmware that I have is V 1.0540.0.4 (13-10-2005)

Thnx
Amr

[o66183]

Hi,

I have received an answer from the professionell Nokia support concerning the issue above. As stated here Nokia has an issue concerning Symbian memory management, so it's not my/any application producing the error.

I happy about the honest answer from Nokia:

i Olli,

Sorry for the late response.

The problem tuned out to be much complex than what we originally expected it to be. The reason for memory leak is somewhere deep in Symbian OS which makes it impossible for us to give a workaround in short time.

The reason is still in under investigation. Please stand by for the further information.

We apologize and are really sorry for this error.

This case will be closed now. You will be granted new case because this error is in our platform.

Regards,
Sriram
Status: Closed
Created: 27-Apr-2006

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[lbauer]

Thanks for sharing Nokia's reply, Oliver. I suppose this means there's a decent chance of a fix in a near firmware release, which would be great. I hope the problem I've experienced has the same root cause.

-Lujo