in command-line-debugger/src/main/java/org/apache/tools/ant/listener/DebuggerListener.java [155:161]
public void targetStarted(BuildEvent event) {
currentTarget = event.getTarget();
Target target = event.getTarget();
if (debugtargets.contains(target.getName())) {
prompt.prompt("Break Point at Target: " + target.getName());
}
}