JVM，内存相关 从 Java 代码到 Java 堆http://www.ibm.com/developerworks/cn/java/j-codetoheap/内存详解http://www.ibm.com/developerworks/cn/java/j-nativememory-linux/从转储（Dump）文件中调试并除错 http://www.ibm.com/developerworks/cn/java/j-memoryanalyzer/
