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From allquantor <>
Subject [GitHub] commons-lang pull request #211: Fixed possible infinite loop in random of Ra...
Date Tue, 15 Nov 2016 11:04:24 GMT
GitHub user allquantor opened a pull request:

     Fixed possible infinite loop in random of RandomStringUtils

    I faced that the `random` method can cause an infinite loop. It can be caused if the **end**
parameter is too low for generating either numbers (< 48) or letters (<65). I added
some exception tests to make the cases clear. Basically, if we call the random function with
for example `numbers = true && end < 48
    the validation for  `Character.isDigit(ch)` will fail and we increment count  `count++`.
    - Removed the white spaces in 
    - Added the terms (inclusive) (exclusive) to the Javadoc of the random method to make
it more clear.

You can merge this pull request into a Git repository by running:

    $ git pull bugfix/infinite-loop-random

Alternatively you can review and apply these changes as the patch at:

To close this pull request, make a commit to your master/trunk branch
with (at least) the following in the commit message:

    This closes #211
commit 5779612199c76bd218223dc7da4446bf6760640d
Author: Ivan Morozov <>
Date:   2016-11-15T10:49:11Z

    1.) Fixed possible infinite loop that can be caused by generating either digits or letters
by calling with a to low end param. 2.) Added (inclusive) and (exclusive) terms to javadoc
of random method


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