Program: 19027
Project: 19027
Buggy source:
ParsedCommand handleCommandString(Player player,String command,RunMode mode) throws SMSException {
  if (player != null) {
    ItemStack stack=player.getItemInHand();
    command=command.replace("String_Node_Str","String_Node_Str" + player.getLocation().getBlockX());
    command=command.replace("String_Node_Str","String_Node_Str" + player.getLocation().getBlockY());
    command=command.replace("String_Node_Str","String_Node_Str" + player.getLocation().getBlockZ());
    command=command.replace("String_Node_Str",player.getName());
    command=command.replace("String_Node_Str",player.getName());
    command=command.replace("String_Node_Str",player.getWorld().getName());
    command=command.replace("String_Node_Str",stack != null ? "String_Node_Str" + stack.getTypeId() : "String_Node_Str");
    command=command.replace("String_Node_Str",stack != null ? "String_Node_Str" + stack.getType().toString() : "String_Node_Str");
  }
  Scanner scanner=new Scanner(command);
  ParsedCommand cmd=null;
  while (scanner.hasNext()) {
    cmd=new ParsedCommand(player,scanner);
switch (mode) {
case EXECUTE:
      if (cmd.isRestricted() || !cmd.isAffordable()) {
        continue;
      }
    execute(player,cmd);
  break;
case CHECK_PERMS:
cmd.setStatus(ReturnStatus.CMD_OK);
if ((cmd.isElevated() || cmd.isConsole()) && !PermissionsUtils.isAllowedTo(player,"String_Node_Str")) {
cmd.setStatus(ReturnStatus.NO_PERMS);
return cmd;
}
 else if (!cmd.getCosts().isEmpty() && !PermissionsUtils.isAllowedTo(player,"String_Node_Str")) {
cmd.setStatus(ReturnStatus.NO_PERMS);
return cmd;
}
break;
default :
throw new IllegalArgumentException("String_Node_Str");
}
if (cmd.isCommandStopped() || cmd.isMacroStopped()) {
break;
}
}
return cmd;
}

Fixed version (ground truth):
ParsedCommand handleCommandString(Player player,String command,RunMode mode) throws SMSException {
  if (player != null) {
    ItemStack stack=player.getItemInHand();
    command=command.replace("String_Node_Str","String_Node_Str" + player.getLocation().getBlockX());
    command=command.replace("String_Node_Str","String_Node_Str" + player.getLocation().getBlockY());
    command=command.replace("String_Node_Str","String_Node_Str" + player.getLocation().getBlockZ());
    command=command.replace("String_Node_Str",player.getName());
    command=command.replace("String_Node_Str",player.getName());
    command=command.replace("String_Node_Str",player.getWorld().getName());
    command=command.replace("String_Node_Str",stack != null ? "String_Node_Str" + stack.getTypeId() : "String_Node_Str");
    command=command.replace("String_Node_Str",stack != null ? stack.getType().toString() : "String_Node_Str");
  }
  Scanner scanner=new Scanner(command);
  ParsedCommand cmd=null;
  while (scanner.hasNext()) {
    if (cmd != null && cmd.getStatus() != ReturnStatus.CMD_OK) {
      break;
    }
    cmd=new ParsedCommand(player,scanner);
switch (mode) {
case EXECUTE:
      execute(player,cmd);
    break;
case CHECK_PERMS:
  cmd.setStatus(ReturnStatus.CMD_OK);
if ((cmd.isElevated() || cmd.isConsole()) && !PermissionsUtils.isAllowedTo(player,"String_Node_Str")) {
  cmd.setStatus(ReturnStatus.NO_PERMS);
  return cmd;
}
 else if (!cmd.getCosts().isEmpty() && !PermissionsUtils.isAllowedTo(player,"String_Node_Str")) {
  cmd.setStatus(ReturnStatus.NO_PERMS);
  return cmd;
}
break;
default :
throw new IllegalArgumentException("String_Node_Str");
}
if (cmd.getStatus() == ReturnStatus.CMD_OK && cmd.isCommandStopped()) {
break;
}
}
return cmd;
}