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Gilles commented on MATH-757:
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Wouldn't removing it break _usage_: from supposedly thread-safe to definitely unsafe?
> ResizableDoubleArray is not thread-safe yet has some synch. methods
> -------------------------------------------------------------------
>
> Key: MATH-757
> URL: https://issues.apache.org/jira/browse/MATH-757
> Project: Commons Math
> Issue Type: Bug
> Reporter: Sebb
> Fix For: 3.1
>
>
> ResizableDoubleArray has several synchronised methods, but is not thread-safe, because
class variables are not always accessed using the lock.
> Is the class supposed to be thread-safe?
> If so, all accesses (read and write) need to be synch.
> If not, the synch. qualifiers could be dropped.
> In any case, the protected fields need to be made private.
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