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https://issues.apache.org/jira/browse/MATH-424?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12916949#action_12916949
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Gilles commented on MATH-424:
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I knew about this one. I didn't "clone" because I figured out that one should
be pretty pervert to fiddle with data coming from an exception. At that point,
the only sane thing would be to examine/print the content...
So this is an optimization to avoid copying the data several times (see the
accessor methods in the subclass {{MatrixDimensionMismatchException}}).
> MultiDimensionMismatchException.getWrongDimensions() fails to clone the array
> -----------------------------------------------------------------------------
>
> Key: MATH-424
> URL: https://issues.apache.org/jira/browse/MATH-424
> Project: Commons Math
> Issue Type: Bug
> Reporter: Sebb
>
> MultiDimensionMismatchException.getWrongDimensions() returns a pointer to the
> array, which allows callers to modify it.
> The constructor takes care to clone the input array, so presumably the getter
> should do so too?
> Same applies to getExpectedDimensions()
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