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https://issues.apache.org/jira/browse/MATH-899?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13498763#comment-13498763
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Thomas Neidhart commented on MATH-899:
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Indeed, I think it is a more general problem, as many of the RNGs are not
thread-safe (if not all of them).
It would be nice to have annotations for thread-safe code, so a user would not
have to dig into code to be sure.
For now we could also document in the class javadoc whether an implementation
is thread-safe or not (like we did in commons-codec).
> A random crash of MersenneTwister random generator
> --------------------------------------------------
>
> Key: MATH-899
> URL: https://issues.apache.org/jira/browse/MATH-899
> Project: Commons Math
> Issue Type: Bug
> Affects Versions: 3.0
> Environment: Windows 7, JDK 1.7.05
> Reporter: Alexander Nozik
> Priority: Minor
>
> There is a very small probability that MersenneTwister generator gives a
> following error:
> java.lang.ArrayIndexOutOfBoundsException: 624
> in MersenneTwister.java line 253
> The error is completely random and its probability is about 1e-8.
> UPD: The problem most probably arises only in multy-thread mode.
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