# vaop

**Repository Path**: youngsapling/vaop

## Basic Information

- **Project Name**: vaop
- **Description**: JVM运行时给指定类的指定方法热更新
- **Primary Language**: Unknown
- **License**: Not specified
- **Default Branch**: master
- **Homepage**: None
- **GVP Project**: No

## Statistics

- **Stars**: 0
- **Forks**: 0
- **Created**: 2021-06-05
- **Last Updated**: 2021-06-05

## Categories & Tags

**Categories**: Uncategorized

**Tags**: None

## README

## VAOP

### WHAT CAN DO

​	JVM运行时给指定类的指定方法热更新.

### RUNNABLE

   	1. 在dynamic.InjectTmCustomize中写要注入的代码, 然后放在字段BODY上持有.
   	2. redefine 项目打包, 生成 ysl.jar.
   	3. 启动期望被注入的jvm, 如 waitattach.jar.
   	4. 执行 java -jar ysl.jar arg0 arg1 arg2, 具体参数含义看报错提示.

### DEBUG

1. remote debug.

   ```java
   -Xrunjdwp:transport=dt_socket,server=y,address=8001
   ```

2. agent需要tools.jar支持.

   ```java
   java -Xbootclasspath/a:D:\ruanjian\Java\jdk1.8.0_192\lib\tools.jar -jar ysl.jar waitattach.jar TransClass getNumber
   ```