如何增加 Integer 对象的缓存大小
How to increase the cache size for Integer object
阅读本文时question
通过这个评论我知道我们可以增加缓存的大小
The recent version of Java 6 support changing the maximum cache value to greater than 127
我google它但没发现这样做。
请帮忙。
IntegerCache 例如是这样说的：
/**
* Cache to support the object identity semantics of autoboxing for values between
* -128 and 127 (inclusive) as required by JLS.
*
* The cache is initialized on first usage. During VM initialization the
* getAndRemoveCacheProperties method may be used to get and remove any system
* properites that configure the cache size. At this time, the size of the
* cache may be controlled by the vm option -XX:AutoBoxCacheMax=<size>.
因此，要么使用 VM 参数，要么使用系统 属性，例如：
-Djava.lang.Integer.IntegerCache.high=256
启动 JVM 时。
阅读本文时question
通过这个评论我知道我们可以增加缓存的大小
The recent version of Java 6 support changing the maximum cache value to greater than 127
我google它但没发现这样做。
请帮忙。
IntegerCache 例如是这样说的：
/**
* Cache to support the object identity semantics of autoboxing for values between
* -128 and 127 (inclusive) as required by JLS.
*
* The cache is initialized on first usage. During VM initialization the
* getAndRemoveCacheProperties method may be used to get and remove any system
* properites that configure the cache size. At this time, the size of the
* cache may be controlled by the vm option -XX:AutoBoxCacheMax=<size>.
因此，要么使用 VM 参数，要么使用系统 属性，例如：
-Djava.lang.Integer.IntegerCache.high=256
启动 JVM 时。