struberg commented on PR #100:
URL: https://github.com/apache/openwebbeans/pull/100#issuecomment-2418550899

   > Hi, Thank you for the response. The test failure occurs when running with 
different seed values using Nondex, not when running a single Nondex run 
multiple times. 
   
   Hi!
   
   Seems nondex is a really cool tool for testing whether tests are really 
reliable. In this very case it creates a false positive though. The reason is 
that the whole CDI container is not intended to be started in parallel for the 
same application. Or rather for the same ClassLoader. This is the very core of 
a JavaEE/JakartaEE container and thus most parts are single threaded by 
definition. Probably there is some room for internal parallelisation but I fear 
removing from a list based on a single boolean is not helping much.
   The point is that OWB (as Spring and tons of other containers) does rely on 
basically a Map<ClassLoader, BeanManageImpl>. You CAN support running parallel 
tests, but then you have to do tricks like adding an intermediate ClassLoader 
(new URLClassLoader) like we did in a few specific tests and set this as TCCL 
for the thread.


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