问题描述
我想获得PermGen的转储以了解它为何填充。有没有办法分析这个？我已经知道像log4j，tomcat webapp重新加载等常见的嫌疑人，但我的应用程序中也有一些自定义代理生成代码，只是想深入了解。
I want to get a dump of the PermGen to see why it is filling. Is there a way to analyze this? I already know about the common suspects like log4j, tomcat webapp reloading etc, but I have some custom proxy generation code in my application, too, and just want to look under the hood.
这有可能吗？
推荐答案
PermGen通常由字符串文字池和加载的类组成。为了回答部分问题，即字符串文字池，我编写了一个实用程序来打印正在运行的JVM的字符串文字池。它可以在这里找到：
The PermGen normally consists of the string literal pool and loaded classes. To answer part of your problem, i.e. the string literal pool I wrote a utility to print a running JVM's string literal pool. It is available here:
它基于，这是用于通过jmap工具打印permgen统计数据。
It is based on PermStat, which is the class used to print permgen stats by the jmap tool.
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