[LANG-1205] NumberUtils.createNumber() behaves inconsistently with NumberUtils.isNumber()

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 3.1
• Fix Version/s: 3.5
• Component/s: lang.math.*
• Assignee: Charles Honton
• Reporter: Daniel Brown
• Created: 23/Feb/16 16:40
• Updated: 19/Oct/16 07:00
• Resolved: 24/Apr/16 03:37

Description

The NumberUtils.createNumber() method fails to check for multiple trailing characters, and as a result, it returns a value even though NumberUtils.isNumber() indicates that it should not. For example:

boolean isNumber = NumberUtils.isNumber("81.5514DD");   // returns false

Number numValue = NumberUtils.createNumber("81.5514DD");  // returns a Double value, 81.5514

I would expect the createNumber() method to throw a NumberFormatException in this case.