[LANG-521] NumberUtils.isNumber() Should Return True for Valid Number with a Trailing Decimal Place

• Type: Bug
• Status: Closed
• Priority: Minor
• Resolution: Fixed
• Affects Version/s: 2.4
• Fix Version/s: 2.5
• Component/s: lang.math.*

Environment

Windows XP SP3, Intel CPU

• Assignee: Unassigned
• Reporter: Chris Rompot
• Created: 04/Aug/09 22:21
• Updated: 25/Feb/10 19:48
• Resolved: 22/Dec/09 08:08

Description

NumberUtils.isNumber() should return true for a valid number ending in a trailing decimal place; e.g., "2." should be considered a number because new BigDecimal("2.") works fine. This could be done by adding the code below after line 1444, which is the if (chars[i] == 'e' || chars[i] == 'E') block.

if (chars[i] == '.') {
if (hasDecPoint || hasExp)

{ // two decimal points or dec in exponent return false; }

return foundDigit; // single trailing decimal point after non-exponent is ok
}