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From "Michael Heuer (JIRA)" <>
Subject [jira] Created: (MATH-194) Review handling and documentation of null parameters
Date Tue, 19 Feb 2008 18:28:46 GMT
Review handling and documentation of null parameters

                 Key: MATH-194
             Project: Commons Math
          Issue Type: Improvement
    Affects Versions: 1.2
            Reporter: Michael Heuer
            Priority: Minor
             Fix For: 2.0

Per discussion on the commons-dev mailing list


Luc wrote:
> Phil wrote:
>> Michael wrote:
>> Null parameter checks are not consistent.
>> Some classes throw NPE (PolynomialFunction, Complex, ComplexUtils,
>> RealMatrixImpl, MatrixUtils, etc.)
>> Some classes throw IAE (UnivariateRealSolverUtils,
>> StorelessUnivariateStatistic, StatUtils, etc.)
>> Many classes do neither (AbstractEstimator, GaussNewtonEstimator,
>> LevenbergMarquardEstimator, Rotation, RotationOrder, BigMatrix,
>> BigMatrixImpl, QRDecompositionImpl, RealMatrix, RealMatrixImpl,
>> AbstractStepInterpolator, DirectSearchOptimizer,
>> CorrelatedRandomVectorGenerator, EmpiricalDistribution,
>> EmpiricalDistributionImpl, RandomData, RandomDataImpl,
>> UncorrelatedRandomVectorGenerator, VectorialCovariance, VectorialMean,
>> etc.)
> Patches welcome on the last one.  The others need to be looked at and
> discussed individually if we want to change behavior and API
> documentation.  Javadoc patches welcome.
Could you open a JIRA ticket with an objective fix set to 2.0 for this 
issue ?

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