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From "Gary D. Gregory (JIRA)" <j...@apache.org>
Subject [jira] [Resolved] (LANG-738) Use internal Java's Number caches instead creating new objects
Date Wed, 03 Aug 2011 13:54:27 GMT

     [ https://issues.apache.org/jira/browse/LANG-738?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Gary D. Gregory resolved LANG-738.
----------------------------------

    Resolution: Fixed

In trunk.

> Use internal Java's Number caches instead creating new objects
> --------------------------------------------------------------
>
>                 Key: LANG-738
>                 URL: https://issues.apache.org/jira/browse/LANG-738
>             Project: Commons Lang
>          Issue Type: Improvement
>          Components: lang.*
>    Affects Versions: 3.0
>         Environment: Apache Maven 3.0.3 (r1075438; 2011-02-28 12:31:09-0500)
> Maven home: C:\Java\apache-maven-3.0.3\bin\..
> Java version: 1.6.0_24, vendor: Sun Microsystems Inc.
> Java home: C:\Program Files\Java\jdk1.6.0_24\jre
> Default locale: en_US, platform encoding: Cp1252
> OS name: "windows 7", version: "6.1", arch: "amd64", family: "windows"
>            Reporter: Gary D. Gregory
>            Assignee: Gary D. Gregory
>             Fix For: 3.0.1
>
>
> Use internal Java's Number caches instead creating new objects:
> - Use more efficient Integer cache: Use "Integer.valueOf(int)" instead of "new Integer(int)".
> - Use more efficient Long cache: Use "Long.valueOf(int)" instead of "new Long(long)".
> - Use more efficient Short cache: Use "Short.valueOf(int)" instead of "new Short(short)".
> In Java version 1.6.0_24 (vendor: Sun Microsystems Inc.), Float and Double do not implement
caches, but I've made the same changes for consistency and future proofing.
> - Use "Double.valueOf(int)" instead of "new Double(double)".
> - Use "Float.valueOf(int)" instead of "new Float(float)".

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