| # JavaTM Platform Debugger Architecture

> The Java Platform Debugger Architecture (JPDA) consists of three interfaces designed for use by debuggers in development environments for desktop systems. The Java Virtual Machine Debugger Interface defines the services a VM must provide for debugging. The Java Debug Wire Protocol defines the format of information and requests transferred between the process being debugged and the debugger front end, which implements the Java Debug Interface. The Java Debug Interface defines information and requests at the user code level.

Design

- JPDA Overview

- Modularity
- Walk-through
- Porting

- Architecture

- Architecture Overview
- Debugger Interfaces

- JavaTM Virtual Machine Debug Interface

- JavaTM Debugger Wire Protocol
- JavaTM Debug Interface

Interface Reference

- Java Virtual Machine Debug Interface (JVMDI)

- Specification

- Java Debug Wire Protocol (JDWP)

- Specification

- Java Debug Interface (JDI)

- Specification

Implementation

- Connection and Invocation Details
- Known Bugs and Limitations

Examples

> The `demo/jpda/examples.jar` file in the SDK software contains JPDA examples, including source code for the `jdb` Java Debugger and the prototype `javadt` GUI debugger.

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