JVM专题-JVM小结

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发布时间：2019-02-26

本文共 1468 字，大约阅读时间需要 4 分钟。

JVM ????

Java????JVM??Java????????????Java?????JVM???????????????????Java???????

1. JVM???????

JVM?????????????????????????????

1.1 ??????

???????Class Loading System??????????????Class????????????????Method Area????????????????????????????Runtime Constant Pool????????????????

1.2 Java?

Java??Java Heap??JVM??????????????Java???????????????????????????????Java????????????

1.3 Java?

???????????Java??Java Stack?????Frame??????????????????????????????????????????

1.4 ?????

??????Native Method Stack??Java??????????????Native Method?????JVM??Java?????????????C/C++???

1.5 ??????

???????Garbage Collection System??JVM????????????????????JVM??????Java?????????????????

1.6 ??????PC????

PC????Program Counter??????????????????????????????????????????????????PC??????undefined?

1.7 ????

?????Execution Engine??JVM?????????????????????JVM????????????????????????

2. Java??????????

2.1 Java?????

Java??????Java?????????????????

???????????????????

???????Java?????????????????

??????????????????????????

??class?????????????????

???class??????????

????????????????????

??????????????????????????

?????????????????????????????

2.2 Java??????

JVM????????????????????????????????????????????

2.3 Java????????????

?????????????

Java???????

?????

????

???????class??

??????

Bootstrap ClassLoader????????

Extension ClassLoader????????

App ClassLoader????????

Custom ClassLoader???????????

??????

????????????PC?????????????

??????????

????JVM????Java?????????????????Java?????????

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