[LANG-36] [lang] patch and test case fixing problem with RandomStringUtils.random()

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 2.0
• Fix Version/s: 2.0

Environment

Operating System: other
Platform: Other

• Bugzilla Id: 19880
• Assignee: Unassigned
• Reporter: Phil Steitz
• Created: 13/May/03 14:08
• Updated: 16/May/06 12:40
• Resolved: 16/May/06 12:40

Description

When a set of characters is supplied to RandomStringUtils.random(), the last
character in the set never appears in generated strings.

Attaching patch and test case showing failure.

The test case generates 100 6-character strings from a 3-character set and
compares the observed frequency of occurrence of each of the characters in the
set with expectation assuming purely random selection. Uses a chi-square test.