At times Java program debugging task becomes quite dreary and it might get intense when an application running on a remote environment doesn't produce output on the log file. With JPDA or Java platform Debugger Architecture you will be able to debug running Java application in every situation.

JPDA is a collection of APIs meant for debugging Java code and is available in J2SE which starts from 1.2.2 version. Let me tell you that JPDA is neither an application nor debugging tool but a set of well designed and implemented interfaces and protocols.

Consisting of three interfaces, JPDA comprises of Java Virtual Machine Tools Interface, Java Debug Wire Protocol and Java Debug Interface. As per the JPDA concept, debugging process is divided into two parts- the program which is being debugged and JDI which is a user interface of the debugger application. What Sun intends to do is offer an infrastructure so that debuggers can utilize it in the best possible manner.