Java Platform Debugger Architecture (JPDA)

JPDA technology is a multi-tiered debugging architecture that enables tool developers to easily create debugger applications that run portably across platforms, virtual-machine implementations, and J2SE versions.

JPDA consists of three layers:

• JVMDI - Java Virtual Machine Debug Interface

  Defines the debugging services a VM must provide for debugging.

• JDWP - 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.

• JDI - Java Debug Interface

  Defines a high-level Java programming language interface that tool developers can easily use to write remote debugger applications.