use thread safe collection in RoundRobinFormulaGenerator#1239
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Hi all,
thanks for providing the CDK first of all 👍.
We use it in mzmine to generate molecular formulas and noticed, that we cannot parallelise the generation for the RoundRobinFormulaGenerator (line 170). The issue was that the cache in there was not thread safe and iteration caused a concurrent modification exception.
I replaced the current cache with a thread-safe ConcurrentLinkedQueque.