Examples of org.apache.commons.math3.exception.NullArgumentException

Package org.apache.commons.math3.exception

Examples of org.apache.commons.math3.exception.NullArgumentException

org.apache.commons.math3.exception.NullArgumentException
All conditions checks that fail due to a {@code null} argument must throwthis exception. This class is meant to signal a precondition violation ("null is an illegal argument") and so does not extend the standard {@code NullPointerException}. Propagation of {@code NullPointerException} from within Commons-Math isconstrued to be a bug. @since 2.2

     * @throws MathArithmeticException if the resulting numerator or denominator exceeds
     *  {@code Integer.MAX_VALUE}
     */
    public Fraction multiply(Fraction fraction) {
        if (fraction == null) {
            throw new NullArgumentException(LocalizedFormats.FRACTION);
        }
        if (numerator == 0 || fraction.numerator == 0) {
            return ZERO;
        }
        // knuth 4.5.1

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     * @throws MathArithmeticException if the resulting numerator or denominator exceeds
     *  {@code Integer.MAX_VALUE}
     */
    public Fraction divide(Fraction fraction) {
        if (fraction == null) {
            throw new NullArgumentException(LocalizedFormats.FRACTION);
        }
        if (fraction.numerator == 0) {
            throw new MathArithmeticException(LocalizedFormats.ZERO_FRACTION_TO_DIVIDE_BY,
                                              fraction.numerator, fraction.denominator);
        }

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    public UnivariateMultiStartOptimizer(final BaseUnivariateOptimizer<FUNC> optimizer,
                                             final int starts,
                                             final RandomGenerator generator) {
        if (optimizer == null ||
                generator == null) {
                throw new NullArgumentException();
        }
        if (starts < 1) {
            throw new NotStrictlyPositiveException(starts);
        }

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     */
    public static double solve(UnivariateFunction function, double x0, double x1)
        throws NullArgumentException,
               NoBracketingException {
        if (function == null) {
            throw new NullArgumentException(LocalizedFormats.FUNCTION);
        }
        final UnivariateSolver solver = new BrentSolver();
        return solver.solve(Integer.MAX_VALUE, function, x0, x1);
    }

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                               double x0, double x1,
                               double absoluteAccuracy)
        throws NullArgumentException,
               NoBracketingException {
        if (function == null) {
            throw new NullArgumentException(LocalizedFormats.FUNCTION);
        }
        final UnivariateSolver solver = new BrentSolver(absoluteAccuracy);
        return solver.solve(Integer.MAX_VALUE, function, x0, x1);
    }

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                                   final double lowerBound, final double upperBound,
                                   final double q, final double r, final int maximumIterations)
        throws NoBracketingException {


        if (function == null) {
            throw new NullArgumentException(LocalizedFormats.FUNCTION);
        }
        if (q <= 0)  {
            throw new NotStrictlyPositiveException(q);
        }
        if (maximumIterations <= 0)  {

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    public static boolean isBracketing(UnivariateFunction function,
                                       final double lower,
                                       final double upper)
        throws NullArgumentException {
        if (function == null) {
            throw new NullArgumentException(LocalizedFormats.FUNCTION);
        }
        final double fLo = function.value(lower);
        final double fHi = function.value(upper);
        return (fLo >= 0 && fHi <= 0) || (fLo <= 0 && fHi >= 0);
    }

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                                        final double lower,
                                        final double upper)
        throws NullArgumentException,
               NoBracketingException {
        if (function == null) {
            throw new NullArgumentException(LocalizedFormats.FUNCTION);
        }
        verifyInterval(lower, upper);
        if (!isBracketing(function, lower, upper)) {
            throw new NoBracketingException(lower, upper,
                                            function.value(lower),

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         * @throws NumberIsTooSmallException if there are less than 3
         * observations.
         */
        public ParameterGuesser(WeightedObservedPoint[] observations) {
            if (observations == null) {
                throw new NullArgumentException(LocalizedFormats.INPUT_ARRAY);
            }
            if (observations.length < 3) {
                throw new NumberIsTooSmallException(observations.length, 3, true);
            }

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    protected PointVectorValuePair optimizeInternal(final int maxEval, final FUNC f,
                                                    final double[] t, final double[] w,
                                                    final double[] startPoint) {
        // Checks.
        if (f == null) {
            throw new NullArgumentException();
        }
        if (t == null) {
            throw new NullArgumentException();
        }
        if (w == null) {
            throw new NullArgumentException();
        }
        if (startPoint == null) {
            throw new NullArgumentException();
        }
        if (t.length != w.length) {
            throw new DimensionMismatchException(t.length, w.length);
        }

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