This:

(fhpd) go
(fhpd) Breakpoint 0 main

The code like:

 actionpoint = bpManager.addFunctionBreakpoint(breakpt, die);
 actionpoint.addObserver(new CLIBreakpointObserver() {
    public void updateHit(final SourceBreakpoint bpt,
        Task task, long address) {
          // See comment in case above.
          Manager.eventLoop.add(new Event() {
             public void execute() {
                FunctionBreakpoint fbpt
                         = (FunctionBreakpoint) bpt;
                outWriter.print("Breakpoint ");
                outWriter.print(fbpt.getId());
                outWriter.print(" ");
                outWriter.println(fbpt.getName());

in BreakpointCommand, it should instead notify the stepping engine that a
breakpoint has occured so that the stepping engine can stop it (and possibly
other) threads; and then notify the cli that things have stopped due to a
breakpoint.