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James Carman commented on LANG-634: ----------------------------------- Try NumberUtils.isNumber(). > StringUtils.isNumeric returns false on negative value > ----------------------------------------------------- > > Key: LANG-634 > URL: https://issues.apache.org/jira/browse/LANG-634 > Project: Commons Lang > Issue Type: Bug > Components: lang.* > Affects Versions: 2.2 > Reporter: Arjan Moraal > > StringUtils.isNumeric returns false for negative values. > So this unit test line will break the test: > assertTrue(StringUtils.isNumeric("-1")); -- This message is automatically generated by JIRA. - You can reply to this email to add a comment to the issue online.