Controlling Java integer cache

Apr 28, 2011 · 1 min read  ·
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Useful for autoboxing. By default, Integer.valueOf caches between -128 and 127 (min/max. of signed byte). However, you can increase this range by using:

-XX:+AggressiveOpts

and/or

-Djava.lang.Integer.<wbr></wbr>IntegerCache.high

when launching the VM. More details: https://www.javaspecialists.eu/archive/Issue191.html.