java8 移除了永久代，将其移动到了本地内存中，参考java 8中撤销永久代，引入元空间因此其对应的参数 -XX:PremSize 和 -XX:MaxPermSize 已经失效html
- 在java7中设置参数：-Xmx512m -XX:MaxPermSize=128m
- 在java8中设置参数：-Xmx512m
Java HotSpot(TM) 64-Bit Server VM warning: ignoring option PermSize=2m; support was removed in 8.
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相关文章
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