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Re: [cross-project-issues-dev] Problems running Xtext and Buildship together

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.dietrich@xxxxxxxxx>:

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.dietrich@xxxxxxxxx>:

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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