[ http://issues.apache.org/jira/browse/COCOON-1716?page=all ]
Antonio Gallardo closed COCOON-1716:
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Fix Version: 2.1.10-dev (current SVN)
Resolution: Fixed
Thanks for reporting!
1. It is not uniform, on the javadocs, we read the java.lang.Math.random() has
an approximately uniform distribution [1].
2. The problem about the "min" parameter is now fixed in branch 2.1 and trunk
for 2.2. Now the RandomInputModule returns a random number in the range
(min,max) as expected.
To show the fix there are 2 new values in the random input module:
http://localhost:8888/samples/modules/randomnumber.html or
http://cocoon.zones.apache.org/demos/21branch/samples/modules/randomnumber.html
3. About returning the same value, I was unable to see this behavior, make sure
your browser is not caching the page.
[1] http://java.sun.com/j2se/1.3/docs/api/java/lang/Math.html#random()
Please cross check and reopen the bug if needed.
> RandomNumberModule wrong answers
> --------------------------------
>
> Key: COCOON-1716
> URL: http://issues.apache.org/jira/browse/COCOON-1716
> Project: Cocoon
> Type: Bug
> Reporter: Antonio Fiol
> Assignee: Antonio Gallardo
> Fix For: 2.1.10-dev (current SVN)
>
> Apparently, the distribution of the numbers returned by the
> RandomNumberModule is not quite uniform.
> Without any special configuration, its result "mod 4" usually (if not always)
> returns the same value (Windows platform, Tomcat 5.5, JDK 1.5).
> Other than that, the code does not add up "min" to the result, so it gives a
> random number in the range (0,max-min), and not in (min,max) as expected.
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