apache / commons-math / 308

91%

Pull #66

travis-ci

Consider returning a zero length array of double rather than null.

It is often a better design to return a length zero array rather than a null reference to indicate that there are no results (i.e., an empty list of results).
This way, no explicit check for null is needed by clients of the method.
On the other hand, using null to indicate "there is no answer to this question" is probably appropriate.
http://findbugs.sourceforge.net/bugDescriptions.html#PZLA_PREFER_ZERO_LENGTH_ARRAYS

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