[ http://jira.andromda.org/browse/CORE-121?page=all ]
Peter Friese resolved CORE-121:
-------------------------------
Fix Version: 3.2 RC1
Resolution: Fixed
Patch applied. Thanks, Lars!
> MetafacadeBase and MetafacadeFactory seem to have a bug
> -------------------------------------------------------
>
> Key: CORE-121
> URL: http://jira.andromda.org/browse/CORE-121
> Project: AndroMDA Core
> Type: Bug
> Versions: 3.2 RC1
> Environment: Running AndroMDA via ANT. Model created in Borland Together and
> exported through org.andromda.modules.xmilink.
> Reporter: Lars Bilger
> Assignee: Peter Friese
> Fix For: 3.2 RC1
> Attachments: MetafacadeBasePatch.txt, MetafacadeFactoryPatch.txt
>
> Had a problem where builds would sometimes fail and sometimes succeed,
> seemingly at random. Found out that it depends on the input model - the
> xmilink exporter writes the model elements into the xmi in a different order
> with every export, but this shouldn't be an issue.
> The root reasons for the failures were NullPointerExceptions occuring in
> various locations in the code, one of them being
> MetafacadeBase.shieldedElement(). Browsing through the code, I found another
> bit of code that caught my eye in MetafacadeFactory.getMetafacade().
> The reason I'm filing this as a bug is that I didn't have any of the above
> problems since I changed it, although I don't quite understand what's
> happening here.
> As stated in http://galaxy.andromda.org/forum/viewtopic.php?t=2251, I
> introduced a condition checking for null in the shieldedElement method to
> avoid the NullPointerExceptions.
> I also changed the metafacadesInCreation mechanism in the getMetafacade
> method to use both the mappingObject and the requested metafacadeClass as key
> for the metafacadesInCreation map.
> Note that in the supplied patches I did that by putting both into an
> ArrayList and using that as key, which might not be the most elegant way to
> do it.
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