https://bz.apache.org/bugzilla/show_bug.cgi?id=58547
Bug ID: 58547
Summary: Avoid new Integer and new Long instances when doing
conversions
Product: Tomcat 8
Version: trunk
Hardware: Macintosh
OS: Mac OS X 10.1
Status: NEW
Severity: trivial
Priority: P2
Component: Util
Assignee: [email protected]
Reporter: [email protected]
Created attachment 33219
--> https://bz.apache.org/bugzilla/attachment.cgi?id=33219&action=edit
Replaced new Integer/Long with valueOf calls
Discovered cases where an inefficient Number constructor is being called
instead of the static valueOf.
Using new Integer(int) is guaranteed to always result in a new object whereas
Integer.valueOf(int) allows caching of values to be done by the compiler, class
library, or JVM. Using of cached values avoids object allocation and the code
will be faster.
See http://findbugs.sourceforge.net/bugDescriptions.html#DM_NUMBER_CTOR
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