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https://issues.apache.org/jira/browse/LANG-992?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Niall Pemberton updated LANG-992:
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Attachment: LANG-992-v2.patch
Attaching second version of patch
> 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
> Attachments: LANG-992-v2.patch
>
>
> 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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