On Wed, Nov 24, 2010 at 3:51 AM, sebb <seb...@gmail.com> wrote:
> On 24 November 2010 11:02, Stefan Bodewig <bode...@apache.org> wrote:
>> On 2010-11-24, sebb wrote:
>>
>>> On 24 November 2010 09:46, Stefan Bodewig <bode...@apache.org> wrote:
>>>> On 2010-11-22, Jörg Schaible wrote:
>>
>>>>> Stefan Bodewig wrote:
>>
>>>>>> The commons-lang3 builds fail[2] and too me it looks as if this was
>>>>>> because AWT is not running in headless mode,
>>
>>>> confirmed by passing -DargLine=-Djava.awt.headless=true to mvn - the
>>>> builds now pass.
>>
>>>>>> I am suprised the problem doesn't show up in the other CI builds.
>>
>>>> Still surprised 8-)
>>
>>>> It doesn't show up inside Gump on Linux or FreeBSD running OpenJDK or
>>>> the FreeBSD port of Sun's VM either - maybe this codebase's AWT detects
>>>> there is no X-Server and switches to headless mode without any help.
>>
>>> Or are those nodes running a frame buffer (I think that is the correct 
>>> name)?
>>
>> I don't recall installing Xvfb (the X server running in a virtual frame
>> buffer) but it could have been pulled in as a dependency - and I'm
>> pretty sure we don't start it even if it is installed.  No, I don't
>> think the builds have any X server to connect to.
>>
>>> Since there are headless hosts, maybe code which is supposed to be
>>> able to run anywhere (e.g. LANG) needs to take this into account?
>>
>>> I.e. Perhaps MacGump has found a bug in Lang?
>>
>> The tests that failed are the ones for the event package.  I don't see
>> any uses of AWT in the main code but the tests use AWT classes
>> (ActionEvent and ActionListener).  It seems as if the static initializer
>> of either class already requires a working window system on a Mac - it
>> may not be required on OpenJDK's AWT.
>>
>> I don't think the lang3 code requires a window system - so no bug in the
>> main code - but its tests do.
>
> IMO the tests should then be fixed (I may have time to look later).
>
> If there is a suitable alternative to the AWT events then use that,
> otherwise allow for the test failure when running headless.
>
> Seems to me it's more useful for Gump to point out these problems than
> to try and hide them.

+1.

Perhaps:

javax.naming.event.ObjectChangeListener
javax.naming.event.NamingEvent

Hen

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