目前基于插桩技术实现Java程序的动态交互安全监测已经有一些实现形式,如RASP,IAST。在Java中插桩通过Instrument以及字节码操作工具(如:ASM,Javassist,Byte Buddy等)实现 相关知识 Instrumentation简介 Java SE 5 引入了静态Instument的概念,利用它我们可以构建一个独立于应用程序的代理程序(Agent),用力啊检测和协助运行在JVM...
ASMis an all purpose Java bytecode manipulation and analysis framework. It can be used to modify existing classes or to dynamically generate classes, directly in binary form. ASM provides some common bytecode transformations and analysis algorithms from which custom complex transformations and code ana...
ASMis an all purpose Java bytecode manipulation and analysis framework. It can be used to modify existing classes or to dynamically generate classes, directly in binary form. ASM provides some common bytecode transformations and analysis algorithms from which custom complex transformations and code ana...
API有点混乱，因为这个项目多年来一直在发展。有关于该框架的文档，但不像ASM那样集中。
所以,asm也帮我们贴心地生成了这样的语句: Copymv.visitFieldInsn(Opcodes.GETFIELD, "org/xunche/agent/TimeAgentByJava$TimeAdviceAdapter", "methodName", "Ljava/lang/String;"); 看起来就像是说,访问org/xunche/agent/TimeAgentByJava$TimeAdviceAdapter类的methodName字段。 但是,这是有问题的。因为,这...
利用java.lang.instrument(容器类) 做动态 Instrumentation(执行容器) 是 Java SE 5 的新特性。 使用Instrumentation,开发者可以构建一个独立于应用程序的代理程序(Agent),用来监测和协助运行在 JVM 上的程序,甚至能够替换和修改某些类的定义。 这个功能为虚拟机监控提供了支撑。
--add-opens=java.base/jdk.internal.org.objectweb.asm=ALL-UNNAMED --add-opens=java.base/jdk.internal.org.objectweb.asm.tree=ALL-UNNAMED edit your plugin config files:${lower plugin name}.conffile in theconfigdir whereja-netfilter.jaris located. ...
先后对ASM/Javaassist/Bytebuddy等技术进行了调研等,本文是对所做摸索探路工作的总结,若读者有类似Trace场景需求,可以进行借鉴参考。 在众多比较之后最后选择的是Bytebuddy技术。 1. Java字节码简介 Java字节码是众多字节码增强技术的知识基础。Java语言写出的源代码首先需要编译成class文件,即字节码文件,然后被JVM加载...
8037221 other-libs other [asm] refresh internal ASM version 8044046 other-libs other [asm] refresh internal ASM version to v5.0.3 8021804 security-libs java.security Certpath validation fails if validity period of root cert does not include validity period of intermediate cert ...
The agent is able to obtain these metrics dynamically at runtime by "weaving" the necessary bytecode into loaded classes using the Java instrumentation API and the ASM framework. There is no source code changes required by the end user and no class files on disk are altered. JMX metrics are...