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ASM Late-Binding Agent

A demo late binding Java agent utilising ASM for transforming classes.

A simple library, it has a deliciously simple API for injecting code into already loaded classes.

Compilation

We use Maven to handle our dependencies.

Usage

There are two classes to be concerned with: AgentLoader and Tools. AgentLoader contains the meat of the injector, while Tools holds various IO helpers.

To load an agent, its as simple as:

    Tools.loadAgentLibrary(); // Loads the OS-specific attach library
    // Loads the agent in `Agent.class`, and packages `AgentLoader.class` as a dependency
    AgentLoader.attachAgentToJVM(Tools.getCurrentPID(), Agent.class, AgentLoader.class);

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A demo late binding Java agent utilising ASM for transforming classes.

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