[stringtemplate-interest] deadlock during the static initialization

[Nils Liebelt]

Hi Terence,

thanks for the support. One last note on testcase. It does not fail when 
the error occures. But you can see from
the log statements and the thread dump that the worker threads are not 
terminating.


Regards,

Nils

Terence Parr schrieb:
>
> On Jan 13, 2009, at 10:38 AM, Nils Liebelt wrote:
>
>> Hi all,
>>
>> I spotted an racing condition that occures during the (static) 
>> initialization of StringTemplate and StringTemplateGroup.
>> The result is an deadlock that occures when initializing the classes 
>> from different threads. Please find attached a simple junit testcase
>> that illustrates the behaviour. Also attached is a thread dump that 
>> shows stacktraces after the deadlock occures. To get around this
>> issue you must statically initialize one of the classes before actual 
>> creating the instances of the mentioned classes  (see testcase)
>>
>> The problem affects StringTemplate Version 3.2. I can reproduce the 
>> behaviour on sun jvm 1.6.0_03-b05 (64bit) and 1.6.0_07-b06 (32bit)
>>
>> Is this a known bug? Can I raise a jira?
>
> Hi Nils, just added:
>
> http://www.antlr.org/jira/browse/ST-48
>
> Ter
>


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Nils Liebelt
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