Debugger using class information and dynamic instance inter-relationships

A debugger comprising:

• a class information generation means for generating class information representing a structure of plural classes which implement plural objects of a program to be debugged based on source code of said program to be debugged;
• an object information generation means for generating and recording object information including an object identification and a starting address for each object when each of said plural objects is created during an execution of said program;
• a breakpoint setting means for setting plural breakpoints according to said object information, each breakpoint being set at a breakpoint address corresponding to a specific object of said plural objects;
• an event point setting means for setting an event point in said specific object of said program;
• an event point detection means for detecting said event point according to the execution of said program;
• and
• an event information generation means for generating event information about the execution of said program at said event point.