Optimize primitive boxing #2
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added 5 commits
October 10, 2016 16:14
In order to avoid the creation of multiple Integer instances, use Integer#valueOf instead of Integer#new. This reduces memory and gc load.
In order to avoid the creation of multiple instances of true/false, use Boolean#valueOf instead of Boolean#new. This reduces memory and gc load.
These changes remove some superfluous boxing/unboxing operations and prepare for future JVM optimization similar to the Integer cache.
These changes help to exploit the Long cache.
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This pull request reduces memory strain and improves performance by avoiding the creation of duplicated primitive wrapper objects. To achieve this it exploits a) Java's built-in caches, e.g., IntegerCache (configure: -XX:AutoBoxCacheMax=) and b) auto-boxing.