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From "Geir Magnusson Jr." <g...@pobox.com>
Subject Re: [drlvm][shutdown] How to cleanup resources safely?
Date Tue, 21 Nov 2006 14:24:18 GMT


Tim Ellison wrote:
> Geir Magnusson Jr. wrote:
>> Evgueni Brevnov wrote:
>>> On 11/21/06, Geir Magnusson Jr. <geir@pobox.com> wrote:
>>>>
>>>> Evgueni Brevnov wrote:
>>>>> As it was discussed earlier (and I think agreed) the System.exit()
>>>>> should terminate entire process the VM is running in right after it
>>>>> executed shutdown hooks and finalizes.
>>>> I don't think so.  How could you embed the VM in another program?
>>>  My initial understanding was that System.exit() shouldn't terminate
>>> the process. But the experiments proved the opposite. AFAIU if you
>>> want to embed the application then it should not call System.exit().
>>>  I don't see any problems to extend the proposal to the case of
>>> System.exit() so that the process will not be stopped. But, do we want
>>> such incompatibility with RI?
>> Because the RI is doing something really stupid?
>>
>> It's supposed to just terminate the VM, right?
>>
>> IBM-ers... what does J9 do, and why?
> 
> System.exit() eventually results in a call to exit() (on most OSes), so
> it will bring down the process too.
> 
> I don't think Harmony can change that because it may well break apps.

So VMs aren't embeddable.

<sigh>

Maybe we can offer a flag for people that want to truly embed the VM...

geir


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