Program: 133987
Project: 133987
Buggy source:
@Override public void execute(CommandSender sender,List<String> args){
  if (!correctLength(sender,args.size(),0,2)) {
    return;
  }
 else   if (args.size() == 0) {
    if (!hasPermission(sender) || !isPlayer(sender)) {
      return;
    }
    if (Commands.isToggledForAll) {
      sender.sendMessage(ChatColor.RED + "String_Node_Str");
      return;
    }
    BendingPlayer bPlayer=GeneralMethods.getBendingPlayer(sender.getName());
    if (bPlayer == null) {
      GeneralMethods.createBendingPlayer(((Player)sender).getUniqueId(),sender.getName());
      bPlayer=GeneralMethods.getBendingPlayer(sender.getName());
    }
    if (bPlayer.isToggled()) {
      sender.sendMessage(ChatColor.RED + "String_Node_Str");
      bPlayer.toggleBending();
    }
 else {
      sender.sendMessage(ChatColor.GREEN + "String_Node_Str");
      bPlayer.toggleBending();
    }
  }
 else   if (args.size() == 1 && args.get(0).equalsIgnoreCase("String_Node_Str") && hasPermission(sender,"String_Node_Str")) {
    if (Commands.isToggledForAll) {
      Commands.isToggledForAll=false;
      for (      Player player : Bukkit.getOnlinePlayers()) {
        player.sendMessage(ChatColor.GREEN + "String_Node_Str");
      }
      if (!(sender instanceof Player))       sender.sendMessage(ChatColor.GREEN + "String_Node_Str");
    }
 else {
      Commands.isToggledForAll=true;
      for (      Player player : Bukkit.getOnlinePlayers()) {
        player.sendMessage(ChatColor.RED + "String_Node_Str");
      }
      if (!(sender instanceof Player))       sender.sendMessage(ChatColor.RED + "String_Node_Str");
    }
  }
 else   if (sender instanceof Player && args.size() == 1 && Element.getType(args.get(0)) != null && sender.hasPermission("String_Node_Str" + getElement(args.get(0)))) {
    Element e=Element.getType(getElement(args.get(0)));
    BendingPlayer bPlayer=GeneralMethods.getBendingPlayer(sender.getName());
    bPlayer.toggleElement(e);
    if (bPlayer.isElementToggled(e) == false) {
      if (e == Element.Chi) {
        sender.sendMessage(GeneralMethods.getElementColor(e) + "String_Node_Str" + args.get(0).toLowerCase()+ "String_Node_Str");
      }
 else {
        sender.sendMessage(GeneralMethods.getElementColor(e) + "String_Node_Str" + args.get(0).toLowerCase()+ "String_Node_Str");
      }
    }
 else {
      if (e == Element.Chi) {
        sender.sendMessage(GeneralMethods.getElementColor(e) + "String_Node_Str" + args.get(0).toLowerCase()+ "String_Node_Str");
      }
 else {
        sender.sendMessage(GeneralMethods.getElementColor(e) + "String_Node_Str" + args.get(0).toLowerCase()+ "String_Node_Str");
      }
    }
  }
 else   if (sender instanceof Player && args.size() == 2 && Element.getType(args.get(0)) != null && sender.hasPermission("String_Node_Str" + getElement(args.get(0)))) {
    Player target=Bukkit.getPlayer(args.get(1));
    if (!hasAdminPermission(sender))     return;
    if (target == null) {
      sender.sendMessage(ChatColor.RED + "String_Node_Str");
    }
    Element e=Element.getType(getElement(args.get(0)));
    BendingPlayer bPlayer=GeneralMethods.getBendingPlayer(target.getName());
    if (bPlayer.isElementToggled(e) == true) {
      if (e == Element.Chi) {
        sender.sendMessage(GeneralMethods.getElementColor(e) + "String_Node_Str" + ChatColor.DARK_AQUA+ target.getName()+ "String_Node_Str"+ args.get(0).toLowerCase()+ "String_Node_Str");
        target.sendMessage(GeneralMethods.getElementColor(e) + "String_Node_Str" + args.get(0).toLowerCase()+ "String_Node_Str"+ ChatColor.DARK_AQUA+ sender.getName());
      }
 else {
        sender.sendMessage(GeneralMethods.getElementColor(e) + "String_Node_Str" + ChatColor.DARK_AQUA+ target.getName()+ "String_Node_Str"+ args.get(0).toLowerCase()+ "String_Node_Str");
        target.sendMessage(GeneralMethods.getElementColor(e) + "String_Node_Str" + args.get(0).toLowerCase()+ "String_Node_Str"+ ChatColor.DARK_AQUA+ sender.getName());
      }
    }
 else {
      if (e == Element.Chi) {
        sender.sendMessage(GeneralMethods.getElementColor(e) + "String_Node_Str" + ChatColor.DARK_AQUA+ target.getName()+ "String_Node_Str"+ args.get(0).toLowerCase()+ "String_Node_Str");
        target.sendMessage(GeneralMethods.getElementColor(e) + "String_Node_Str" + args.get(0).toLowerCase()+ "String_Node_Str"+ ChatColor.DARK_AQUA+ sender.getName());
      }
 else {
        sender.sendMessage(GeneralMethods.getElementColor(e) + "String_Node_Str" + ChatColor.DARK_AQUA+ target.getName()+ "String_Node_Str"+ args.get(0).toLowerCase()+ "String_Node_Str");
        target.sendMessage(GeneralMethods.getElementColor(e) + "String_Node_Str" + args.get(0).toLowerCase()+ "String_Node_Str"+ ChatColor.DARK_AQUA+ sender.getName());
      }
    }
    bPlayer.toggleElement(e);
  }
 else {
    help(sender,false);
  }
}

Fixed version (ground truth):
@Override public void execute(CommandSender sender,List<String> args){
  if (!correctLength(sender,args.size(),0,2)) {
    return;
  }
 else   if (args.size() == 0) {
    if (!hasPermission(sender) || !isPlayer(sender)) {
      return;
    }
    if (Commands.isToggledForAll) {
      sender.sendMessage(ChatColor.RED + "String_Node_Str");
      return;
    }
    BendingPlayer bPlayer=GeneralMethods.getBendingPlayer(sender.getName());
    if (bPlayer == null) {
      GeneralMethods.createBendingPlayer(((Player)sender).getUniqueId(),sender.getName());
      bPlayer=GeneralMethods.getBendingPlayer(sender.getName());
    }
    if (bPlayer.isToggled()) {
      sender.sendMessage(ChatColor.RED + "String_Node_Str");
      bPlayer.toggleBending();
    }
 else {
      sender.sendMessage(ChatColor.GREEN + "String_Node_Str");
      bPlayer.toggleBending();
    }
  }
 else   if (args.size() == 1 && args.get(0).equalsIgnoreCase("String_Node_Str") && hasPermission(sender,"String_Node_Str")) {
    if (Commands.isToggledForAll) {
      Commands.isToggledForAll=false;
      for (      Player player : Bukkit.getOnlinePlayers()) {
        player.sendMessage(ChatColor.GREEN + "String_Node_Str");
      }
      if (!(sender instanceof Player))       sender.sendMessage(ChatColor.GREEN + "String_Node_Str");
    }
 else {
      Commands.isToggledForAll=true;
      for (      Player player : Bukkit.getOnlinePlayers()) {
        player.sendMessage(ChatColor.RED + "String_Node_Str");
      }
      if (!(sender instanceof Player))       sender.sendMessage(ChatColor.RED + "String_Node_Str");
    }
  }
 else   if (sender instanceof Player && args.size() == 1 && Element.getType(getElement(args.get(0))) != null && GeneralMethods.getBendingPlayer(sender.getName()).hasElement(Element.getType(getElement(args.get(0))))) {
    Element e=Element.getType(getElement(args.get(0)));
    BendingPlayer bPlayer=GeneralMethods.getBendingPlayer(sender.getName());
    bPlayer.toggleElement(e);
    if (bPlayer.isElementToggled(e) == false) {
      if (e == Element.Chi) {
        sender.sendMessage(ChiMethods.getChiColor() + "String_Node_Str");
      }
 else {
        sender.sendMessage(GeneralMethods.getElementColor(e) + "String_Node_Str" + getElement(args.get(0)).toLowerCase()+ "String_Node_Str");
      }
    }
 else {
      if (e == Element.Chi) {
        sender.sendMessage(ChiMethods.getChiColor() + "String_Node_Str");
      }
 else {
        sender.sendMessage(GeneralMethods.getElementColor(e) + "String_Node_Str" + getElement(args.get(0)).toLowerCase()+ "String_Node_Str");
      }
    }
  }
 else   if (sender instanceof Player && args.size() == 2 && Element.getType(getElement(args.get(0))) != null && GeneralMethods.getBendingPlayer(sender.getName()).hasElement(Element.getType(getElement(args.get(0))))) {
    Player target=Bukkit.getPlayer(args.get(1));
    if (!hasAdminPermission(sender))     return;
    if (target == null) {
      sender.sendMessage(ChatColor.RED + "String_Node_Str");
    }
    Element e=Element.getType(getElement(args.get(0)));
    BendingPlayer bPlayer=GeneralMethods.getBendingPlayer(target.getName());
    if (bPlayer.isElementToggled(e) == true) {
      if (e == Element.Chi) {
        sender.sendMessage(ChiMethods.getChiColor() + "String_Node_Str" + ChatColor.DARK_AQUA+ target.getName()+ "String_Node_Str");
        target.sendMessage(ChiMethods.getChiColor() + "String_Node_Str" + ChatColor.DARK_AQUA+ sender.getName());
      }
 else {
        sender.sendMessage(GeneralMethods.getElementColor(e) + "String_Node_Str" + ChatColor.DARK_AQUA+ target.getName()+ "String_Node_Str"+ getElement(args.get(0)).toLowerCase()+ "String_Node_Str");
        target.sendMessage(GeneralMethods.getElementColor(e) + "String_Node_Str" + getElement(args.get(0)).toLowerCase()+ "String_Node_Str"+ ChatColor.DARK_AQUA+ sender.getName());
      }
    }
 else {
      if (e == Element.Chi) {
        sender.sendMessage(ChiMethods.getChiColor() + "String_Node_Str" + ChatColor.DARK_AQUA+ target.getName()+ "String_Node_Str");
        target.sendMessage(ChiMethods.getChiColor() + "String_Node_Str" + ChatColor.DARK_AQUA+ sender.getName());
      }
 else {
        sender.sendMessage(GeneralMethods.getElementColor(e) + "String_Node_Str" + ChatColor.DARK_AQUA+ target.getName()+ "String_Node_Str"+ getElement(args.get(0)).toLowerCase()+ "String_Node_Str");
        target.sendMessage(GeneralMethods.getElementColor(e) + "String_Node_Str" + getElement(args.get(0)).toLowerCase()+ "String_Node_Str"+ ChatColor.DARK_AQUA+ sender.getName());
      }
    }
    bPlayer.toggleElement(e);
  }
 else {
    help(sender,false);
  }
}