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From Tim Ellison <t.p.elli...@gmail.com>
Subject Re: [classlib][luni] java.net.ServerSocketTest fails - need help
Date Wed, 27 Dec 2006 11:53:36 GMT
Mikhail Markov wrote:
> On 12/27/06, Tim Ellison <t.p.ellison@gmail.com> wrote:
>>
>> Mikhail Markov wrote:
>> > Why not use ServerSocket(0) to just *obtain* some positive non-busy
>> port
>> > number (and close it after port number obtaining) and after that test
>> > ServerSocket constructor with this obtained port number? In this case
>> we'll
>> > not require any reserved ports at all.
>>
>> There is obviously a race condition there, so you may have to make a
>> number of attempts to get the port you think is now free before others
>> take it.
> 
> The only race condition i see here is that another process could take this
> port between closing of 1-st ServerSocket and opening a new one.
> Is this what you mean?
> (But the same thing may happen if one of applications takes pre-defined
> fixed port at any point during tests run when it's free.)

Exactly -- that's why you may need a number of attempts.

Regards,
Tim

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