fuzhengwei / fuzhengwei/blog.github.io
用Java实现JVM第三章《解析class文件》附[classReader拆解] - bugstack虫洞栈
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2395a1bbf681dacd94c6976ba7381ca9
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- Dominant language
- HTML
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Description
https://fuzhengwei.github.io/itstack-demo-jvm/2019/05/04/%E7%94%A8Java%E5%AE%9E%E7%8E%B0JVM%E7%AC%AC%E4%B8%89%E7%AB%A0-%E8%A7%A3%E6%9E%90class%E6%96%87%E4%BB%B6-%E9%99%84-classReader%E6%8B%86%E8%A7%A3.html
案例介绍
按照如下虚拟机规范,本文主要介绍java版本jvm提取class字节码方式。在java中没有无符号类型,例如js中byte取值是0~256、java中是-128 ~ +172,所以在实际处理字节码时[虚拟机规范u1、u2、u4],需要进行转换。
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