[LANG-1216] NumberUtils.isNumber bug

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 3.4
• Fix Version/s: 3.5
• Component/s: lang.math.*
• Flags: Patch
• Assignee: Pascal Schumacher
• Reporter: yusw
• Created: 08/Apr/16 08:13
• Updated: 22/Oct/16 12:31
• Resolved: 22/Oct/16 12:31

Description

I found that when using NumberUtils【org.apache.commons.lang3.math.NumberUtils.isNumber(version3.4)】 isNumber method the following phenomenon,
when the parameter is 1.0 is true, but when the parameter is 0.1 is displayed is false.
When I use 0.1 as the parameter tuning isNumber method,
view the source code in the method of the method of line 1370 discovered a problem.
When the analytical parameter is ". ", this time the chars [I] value is 46, direct return false.
I think to do so is not very reasonable, please give me your guidance.