Program: 19029
Project: 19029
Buggy source:
private void execute(Player player,ParsedCommand cmd) throws SMSException {
  if (cmd.isRestricted() || !cmd.isAffordable())   return;
  Cost.chargePlayer(player,cmd.getCosts());
  if (cmd.getCommand() == null || cmd.getCommand().isEmpty())   return;
  StringBuilder sb=new StringBuilder(cmd.getCommand()).append("String_Node_Str");
  for (  String a : cmd.getArgs()) {
    sb.append(a).append("String_Node_Str");
  }
  String command=sb.toString().trim();
  if (cmd.isMacro()) {
    String macroName=cmd.getCommand();
    if (macroHistory.contains(macroName)) {
      MiscUtil.log(Level.WARNING,"String_Node_Str" + macroName);
      cmd.setStatus(ReturnStatus.WOULD_RECURSE);
      return;
    }
 else     if (SMSMacro.hasMacro(macroName)) {
      macroHistory.add(macroName);
      ParsedCommand cmd2=null;
      for (      String c : SMSMacro.getCommands(macroName)) {
        for (int i=0; i < cmd.getArgs().size(); i++) {
          c=c.replace("String_Node_Str" + (i + 1) + "String_Node_Str",cmd.arg(i));
        }
        cmd2=handleCommandString(player,c,RunMode.EXECUTE);
        if (cmd2.isMacroStopped())         break;
      }
      cmd.setStatus(cmd2 == null ? ReturnStatus.BAD_MACRO : cmd2.getStatus());
      if (!cmd2.isAffordable())       cmd.setStatus(ReturnStatus.CANT_AFFORD);
      return;
    }
 else {
      cmd.setStatus(ReturnStatus.BAD_MACRO);
      return;
    }
  }
 else   if (cmd.isWhisper()) {
    MiscUtil.alertMessage(player,command);
  }
 else   if (cmd.isConsole()) {
    if (!PermissionsUtils.isAllowedTo(player,"String_Node_Str")) {
      cmd.setStatus(ReturnStatus.NO_PERMS);
      return;
    }
    Debugger.getDebugger().debug("String_Node_Str" + sb.toString());
    ConsoleCommandSender cs=Bukkit.getServer().getConsoleSender();
    if (!Bukkit.getServer().dispatchCommand(cs,sb.toString())) {
      cmd.setStatus(ReturnStatus.CMD_FAILED);
    }
  }
 else   if (cmd.isElevated()) {
    if (!PermissionsUtils.isAllowedTo(player,"String_Node_Str")) {
      cmd.setStatus(ReturnStatus.NO_PERMS);
      return;
    }
    Debugger.getDebugger().debug("String_Node_Str" + sb.toString());
    List<PermissionAttachment> attachments=new ArrayList<PermissionAttachment>();
    boolean tempOp=false;
    try {
      ScrollingMenuSign plugin=ScrollingMenuSign.getInstance();
      @SuppressWarnings("String_Node_Str") List<String> nodes=(List<String>)SMSConfig.getConfig().getList("String_Node_Str");
      for (      String node : nodes) {
        if (!node.isEmpty() && !player.hasPermission(node)) {
          attachments.add(player.addAttachment(plugin,node,true));
        }
      }
      if (SMSConfig.getConfig().getBoolean("String_Node_Str",false) && !player.isOp()) {
        tempOp=true;
        player.setOp(true);
      }
      if (command.startsWith("String_Node_Str")) {
        if (!Bukkit.getServer().dispatchCommand(player,command.substring(1))) {
          cmd.setStatus(ReturnStatus.CMD_FAILED);
        }
      }
 else {
        player.chat(command);
      }
    }
  finally {
      for (      PermissionAttachment att : attachments) {
        player.removeAttachment(att);
      }
      if (tempOp) {
        player.setOp(false);
      }
    }
  }
 else {
    Debugger.getDebugger().debug("String_Node_Str" + sb.toString());
    if (command.startsWith("String_Node_Str")) {
      if (!Bukkit.getServer().dispatchCommand(player,command.substring(1))) {
        cmd.setStatus(ReturnStatus.CMD_FAILED);
      }
    }
 else {
      player.chat(command);
    }
  }
}

Fixed version (ground truth):
private void execute(Player player,ParsedCommand cmd) throws SMSException {
  if (cmd.isRestricted()) {
    cmd.setStatus(ReturnStatus.CMD_OK);
    return;
  }
  if (!cmd.isAffordable()) {
    cmd.setLastError("String_Node_Str");
    cmd.setStatus(ReturnStatus.CANT_AFFORD);
    return;
  }
  Cost.chargePlayer(player,cmd.getCosts());
  if (cmd.getCommand() == null || cmd.getCommand().isEmpty()) {
    cmd.setStatus(ReturnStatus.CMD_OK);
    return;
  }
  StringBuilder sb=new StringBuilder(cmd.getCommand()).append("String_Node_Str");
  for (  String arg : cmd.getArgs()) {
    sb.append(arg).append("String_Node_Str");
  }
  String command=sb.toString().trim();
  if (cmd.isMacro()) {
    runMacro(player,cmd);
  }
 else   if (cmd.isWhisper()) {
    MiscUtil.alertMessage(player,command);
    cmd.setStatus(ReturnStatus.CMD_OK);
  }
 else   if (cmd.isConsole()) {
    if (!PermissionsUtils.isAllowedTo(player,"String_Node_Str")) {
      cmd.setStatus(ReturnStatus.NO_PERMS);
      cmd.setLastError("String_Node_Str");
      return;
    }
    Debugger.getDebugger().debug("String_Node_Str" + command);
    runOneCommand(Bukkit.getServer().getConsoleSender(),cmd,command);
  }
 else   if (cmd.isElevated()) {
    if (!PermissionsUtils.isAllowedTo(player,"String_Node_Str")) {
      cmd.setStatus(ReturnStatus.NO_PERMS);
      cmd.setLastError("String_Node_Str");
      return;
    }
    Debugger.getDebugger().debug("String_Node_Str" + command);
    List<PermissionAttachment> attachments=new ArrayList<PermissionAttachment>();
    boolean tempOp=false;
    try {
      ScrollingMenuSign plugin=ScrollingMenuSign.getInstance();
      @SuppressWarnings("String_Node_Str") List<String> nodes=(List<String>)SMSConfig.getConfig().getList("String_Node_Str");
      for (      String node : nodes) {
        if (!node.isEmpty() && !player.hasPermission(node)) {
          attachments.add(player.addAttachment(plugin,node,true));
        }
      }
      if (SMSConfig.getConfig().getBoolean("String_Node_Str",false) && !player.isOp()) {
        tempOp=true;
        player.setOp(true);
      }
      runOneCommand(player,cmd,command);
    }
  finally {
      for (      PermissionAttachment att : attachments) {
        player.removeAttachment(att);
      }
      if (tempOp) {
        player.setOp(false);
      }
    }
  }
 else {
    Debugger.getDebugger().debug("String_Node_Str" + command);
    runOneCommand(player,cmd,command);
  }
}