Well, it reported which plugins were provided in multiple versions. This way we 
could check that only one Guava version was able to satisfy all dependencies.

Cheers
Alexander


> Am 06.08.2019 um 09:08 schrieb Christian Dietrich 
> <christian.dietr...@itemis.de>:
> 
> this wont help if its not a explicit singleton but a implicit one only 
> (classloaders are not completely isolated)
> 
> Am 06.08.19 um 09:07 schrieb Alexander Nyßen:
>> I remember we had a simrel report pointing out such duplicate singletons in 
>> the repo. Is that no longer available?
>> 
>> Cheers,
>> Alexander
>> 
>>> Am 06.08.2019 um 09:04 schrieb Christian Dietrich 
>>> <christian.dietr...@itemis.de <mailto:christian.dietr...@itemis.de>>:
>>> 
>>> i used that product and it actually found 2 more problematic candidates
>>> 
>>> gef dot - regarding guava
>>> and mylyn trac regarding gson
>>> 
>>> Am 06.08.19 um 08:59 schrieb Ed Willink:
>>>> Hi
>>>> 
>>>> The OOMPH integration is unlikely to help; it checks installability.
>>>> 
>>>> With a conflicting singleton such as Guava
>>>> - the 'left-hand' subsystem successfully installs using version X
>>>> - the 'right-hand' subsystem successfully installs using version Y
>>>> 
>>>> At run-time, any class passed in the 'API' between left and right 
>>>> subsystems gets a bad class version. This probably happens as an 
>>>> integrating system's class loader must 'choose' whether it uses 'left' or 
>>>> 'right' hand class versions.
>>>> 
>>>> If the 'API' is clean enough, e.g. no Optional, it can work.
>>>> 
>>>>     Regards
>>>> 
>>>>         Ed Willink
>>>> 
>>>> On 06/08/2019 07:43, Christian Dietrich wrote:
>>>>> @Michael do you mean this one (see screenshot)
>>>>> 
>>>>> Am 05.08.19 um 20:51 schrieb Michael Keppler:
>>>>>> Am 05.08.2019 um 17:43 schrieb Ed Willink:
>>>>>>> But no. Sorry deep integrators must suffer.
>>>>>> Unfortunately there is no cross-project integration testing. But I
>>>>>> vaguely remember Eike or Ed has shown an Oomph setup called "egg-laying
>>>>>> wool-milk-pig" containing everything from a release train at one of the
>>>>>> early Oomph presentations. Maybe one could do at least some manual
>>>>>> integration testing using that Oomph setup? However, I don't find any
>>>>>> link to that anymore.
>>>>>> 
>>>>>> Ciao, Michael
>>>>>> 
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