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)".
--
This message is automatically generated by JIRA.
For more information on JIRA, see: http://www.atlassian.com/software/jira
