[jira] Resolved: (MATH-309) nextExponential parameter check bug - patch supplied

["Phil Steitz (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/MATH-309?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Phil Steitz resolved MATH-309.
------------------------------

    Resolution: Fixed

Fixed in r831510.  Thanks for reporting this.

> nextExponential parameter check bug - patch supplied
> ----------------------------------------------------
>
>                 Key: MATH-309
>                 URL: https://issues.apache.org/jira/browse/MATH-309
>             Project: Commons Math
>          Issue Type: Bug
>    Affects Versions: 1.0, 1.1, 1.2, 2.0
>         Environment: Ubuntu 9.04
>            Reporter: Mikkel Meyer Andersen
>            Priority: Minor
>             Fix For: 2.1
>
>         Attachments: patch_random_exp
>
>   Original Estimate: 0.08h
>  Remaining Estimate: 0.08h
>
> Index: src/main/java/org/apache/commons/math/random/RandomDataImpl.java
> ===================================================================
> --- src/main/java/org/apache/commons/math/random/RandomDataImpl.java	(revision 830102)
> +++ src/main/java/org/apache/commons/math/random/RandomDataImpl.java	(working copy)
> @@ -462,7 +462,7 @@
>       * @return the random Exponential value
>       */
>      public double nextExponential(double mean) {
> -        if (mean < 0.0) {
> +        if (mean <= 0.0) {
>              throw MathRuntimeException.createIllegalArgumentException(
>                    "mean must be positive ({0})", mean);
>          }

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