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Date: Wed, 26 Mar 2014 21:28:14 +0000 (UTC)
From: "Adam Rauch (JIRA)" <jira@apache.org>
To: issues@commons.apache.org
Message-ID: <JIRA.12703833.1395869182497.11677.1395869294647@arcas>
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Subject: [jira] [Created] (LANG-992) NumberUtils#isNumber() returns false
 for "0.0", "0.4790", et al
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Adam Rauch created LANG-992:
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             Summary: NumberUtils#isNumber() returns false for "0.0", "0.4790", et al
                 Key: LANG-992
                 URL: https://issues.apache.org/jira/browse/LANG-992
             Project: Commons Lang
          Issue Type: Bug
          Components: lang.math.*
    Affects Versions: 3.3.1
         Environment: Java 8, Windows 7
            Reporter: Adam Rauch


After upgraded from 3.1 to 3.3.1 it seems that isNumber(String str) returns false for decimal numbers with leading zeros. In other words:

   boolean ret = NumberUtils.isNumber("0.4790");

On 3.1, ret was true. In 3.3.1, ret is false.

Guessing that LANG-972 is related... comment in the code states:

	// leading 0, but not hex, must be octal

This is clearly a case where leading 0 does not mean hex.


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