Program: 134021
Project: 134021
Buggy source:
/** 
 * Sends information on the given player to the CommandSender.
 * @param sender The CommandSender to display the information to
 * @param playerName The Player to look up
 */
private void whoPlayer(CommandSender sender,String playerName){
  Player player=Bukkit.getPlayer(playerName);
  if (player != null) {
    sender.sendMessage(playerName + "String_Node_Str");
    if (GeneralMethods.isBender(playerName,Element.Air)) {
      sender.sendMessage(AirMethods.getAirColor() + "String_Node_Str");
      if (AirMethods.canAirFlight(player)) {
        sender.sendMessage(GeneralMethods.getSubBendingColor(Element.Air) + "String_Node_Str");
      }
      if (AirMethods.canUseSpiritualProjection(player)) {
        sender.sendMessage(GeneralMethods.getSubBendingColor(Element.Air) + "String_Node_Str");
      }
    }
    if (GeneralMethods.isBender(playerName,Element.Water)) {
      sender.sendMessage(WaterMethods.getWaterColor() + "String_Node_Str");
      if (WaterMethods.canPlantbend(player)) {
        sender.sendMessage(GeneralMethods.getSubBendingColor(Element.Water) + "String_Node_Str");
      }
      if (WaterMethods.canBloodbend(player)) {
        if (WaterMethods.canBloodbendAtAnytime(player)) {
          sender.sendMessage(GeneralMethods.getSubBendingColor(Element.Water) + "String_Node_Str");
        }
 else {
          sender.sendMessage(GeneralMethods.getSubBendingColor(Element.Water) + "String_Node_Str");
        }
      }
      if (WaterMethods.canIcebend(player)) {
        sender.sendMessage(GeneralMethods.getSubBendingColor(Element.Water) + "String_Node_Str");
      }
      if (WaterMethods.canWaterHeal(player)) {
        sender.sendMessage(GeneralMethods.getSubBendingColor(Element.Water) + "String_Node_Str");
      }
    }
    if (GeneralMethods.isBender(playerName,Element.Earth)) {
      sender.sendMessage(EarthMethods.getEarthColor() + "String_Node_Str");
      if (EarthMethods.canMetalbend(player)) {
        sender.sendMessage(GeneralMethods.getSubBendingColor(Element.Earth) + "String_Node_Str");
      }
      if (EarthMethods.canLavabend(player)) {
        sender.sendMessage(GeneralMethods.getSubBendingColor(Element.Earth) + "String_Node_Str");
      }
      if (EarthMethods.canSandbend(player)) {
        sender.sendMessage(GeneralMethods.getSubBendingColor(Element.Earth) + "String_Node_Str");
      }
    }
    if (GeneralMethods.isBender(playerName,Element.Fire)) {
      sender.sendMessage(FireMethods.getFireColor() + "String_Node_Str");
      if (FireMethods.canCombustionbend(player)) {
        sender.sendMessage(GeneralMethods.getSubBendingColor(Element.Fire) + "String_Node_Str");
      }
      if (FireMethods.canLightningbend(player)) {
        sender.sendMessage(GeneralMethods.getSubBendingColor(Element.Fire) + "String_Node_Str");
      }
    }
    if (GeneralMethods.isBender(playerName,Element.Chi)) {
      sender.sendMessage(ChiMethods.getChiColor() + "String_Node_Str");
    }
    BendingPlayer bPlayer=GeneralMethods.getBendingPlayer(playerName);
    UUID uuid=player.getUniqueId();
    if (bPlayer != null) {
      sender.sendMessage("String_Node_Str");
      for (int i=1; i <= 9; i++) {
        String ability=bPlayer.getAbilities().get(i);
        if (ability == null || ability.equalsIgnoreCase("String_Node_Str")) {
          continue;
        }
 else {
          sender.sendMessage(i + "String_Node_Str" + GeneralMethods.getAbilityColor(ability)+ ability);
        }
      }
    }
    if (GeneralMethods.hasRPG()) {
      if (RPGMethods.isCurrentAvatar(player.getUniqueId())) {
        sender.sendMessage(GeneralMethods.getAvatarColor() + "String_Node_Str");
      }
 else       if (RPGMethods.hasBeenAvatar(player.getUniqueId())) {
        sender.sendMessage(GeneralMethods.getAvatarColor() + "String_Node_Str");
      }
    }
    if (staff.containsKey(uuid.toString())) {
      sender.sendMessage(staff.get(uuid.toString()));
    }
  }
 else {
    sender.sendMessage(ChatColor.GREEN + "String_Node_Str");
    new BukkitRunnable(){
      @Override public void run(){
        ResultSet rs2=DBConnection.sql.readQuery("String_Node_Str" + playerName + "String_Node_Str");
        try {
          final List<String> messages=new ArrayList<String>();
          if (rs2.next()) {
            UUID uuid=UUID.fromString(rs2.getString("String_Node_Str"));
            String element=rs2.getString("String_Node_Str");
            messages.add(playerName + "String_Node_Str");
            if (element == null) {
              messages.add("String_Node_Str");
            }
 else {
              if (element.contains("String_Node_Str"))               messages.add(AirMethods.getAirColor() + "String_Node_Str");
              if (element.contains("String_Node_Str"))               messages.add(WaterMethods.getWaterColor() + "String_Node_Str");
              if (element.contains("String_Node_Str"))               messages.add(EarthMethods.getEarthColor() + "String_Node_Str");
              if (element.contains("String_Node_Str"))               messages.add(FireMethods.getFireColor() + "String_Node_Str");
              if (element.contains("String_Node_Str"))               messages.add(ChiMethods.getChiColor() + "String_Node_Str");
            }
            if (GeneralMethods.hasRPG()) {
              if (RPGMethods.isCurrentAvatar(uuid)) {
                messages.add(GeneralMethods.getAvatarColor() + "String_Node_Str");
              }
 else               if (RPGMethods.hasBeenAvatar(uuid)) {
                messages.add(GeneralMethods.getAvatarColor() + "String_Node_Str");
              }
            }
            if (staff.containsKey(uuid)) {
              messages.add(staff.get(uuid));
            }
          }
 else {
            messages.add(ChatColor.RED + "String_Node_Str");
          }
          new BukkitRunnable(){
            @Override public void run(){
              for (              String message : messages) {
                sender.sendMessage(message);
              }
            }
          }
.runTask(ProjectKorra.plugin);
        }
 catch (        SQLException e) {
          e.printStackTrace();
        }
      }
    }
.runTaskAsynchronously(ProjectKorra.plugin);
  }
}

Fixed version (ground truth):
/** 
 * Sends information on the given player to the CommandSender.
 * @param sender The CommandSender to display the information to
 * @param playerName The Player to look up
 */
private void whoPlayer(final CommandSender sender,final String playerName){
  Player player=Bukkit.getPlayer(playerName);
  if (player != null) {
    sender.sendMessage(playerName + "String_Node_Str");
    if (GeneralMethods.isBender(playerName,Element.Air)) {
      sender.sendMessage(AirMethods.getAirColor() + "String_Node_Str");
      if (AirMethods.canAirFlight(player)) {
        sender.sendMessage(GeneralMethods.getSubBendingColor(Element.Air) + "String_Node_Str");
      }
      if (AirMethods.canUseSpiritualProjection(player)) {
        sender.sendMessage(GeneralMethods.getSubBendingColor(Element.Air) + "String_Node_Str");
      }
    }
    if (GeneralMethods.isBender(playerName,Element.Water)) {
      sender.sendMessage(WaterMethods.getWaterColor() + "String_Node_Str");
      if (WaterMethods.canPlantbend(player)) {
        sender.sendMessage(GeneralMethods.getSubBendingColor(Element.Water) + "String_Node_Str");
      }
      if (WaterMethods.canBloodbend(player)) {
        if (WaterMethods.canBloodbendAtAnytime(player)) {
          sender.sendMessage(GeneralMethods.getSubBendingColor(Element.Water) + "String_Node_Str");
        }
 else {
          sender.sendMessage(GeneralMethods.getSubBendingColor(Element.Water) + "String_Node_Str");
        }
      }
      if (WaterMethods.canIcebend(player)) {
        sender.sendMessage(GeneralMethods.getSubBendingColor(Element.Water) + "String_Node_Str");
      }
      if (WaterMethods.canWaterHeal(player)) {
        sender.sendMessage(GeneralMethods.getSubBendingColor(Element.Water) + "String_Node_Str");
      }
    }
    if (GeneralMethods.isBender(playerName,Element.Earth)) {
      sender.sendMessage(EarthMethods.getEarthColor() + "String_Node_Str");
      if (EarthMethods.canMetalbend(player)) {
        sender.sendMessage(GeneralMethods.getSubBendingColor(Element.Earth) + "String_Node_Str");
      }
      if (EarthMethods.canLavabend(player)) {
        sender.sendMessage(GeneralMethods.getSubBendingColor(Element.Earth) + "String_Node_Str");
      }
      if (EarthMethods.canSandbend(player)) {
        sender.sendMessage(GeneralMethods.getSubBendingColor(Element.Earth) + "String_Node_Str");
      }
    }
    if (GeneralMethods.isBender(playerName,Element.Fire)) {
      sender.sendMessage(FireMethods.getFireColor() + "String_Node_Str");
      if (FireMethods.canCombustionbend(player)) {
        sender.sendMessage(GeneralMethods.getSubBendingColor(Element.Fire) + "String_Node_Str");
      }
      if (FireMethods.canLightningbend(player)) {
        sender.sendMessage(GeneralMethods.getSubBendingColor(Element.Fire) + "String_Node_Str");
      }
    }
    if (GeneralMethods.isBender(playerName,Element.Chi)) {
      sender.sendMessage(ChiMethods.getChiColor() + "String_Node_Str");
    }
    BendingPlayer bPlayer=GeneralMethods.getBendingPlayer(playerName);
    UUID uuid=player.getUniqueId();
    if (bPlayer != null) {
      sender.sendMessage("String_Node_Str");
      for (int i=1; i <= 9; i++) {
        String ability=bPlayer.getAbilities().get(i);
        if (ability == null || ability.equalsIgnoreCase("String_Node_Str")) {
          continue;
        }
 else {
          sender.sendMessage(i + "String_Node_Str" + GeneralMethods.getAbilityColor(ability)+ ability);
        }
      }
    }
    if (GeneralMethods.hasRPG()) {
      if (RPGMethods.isCurrentAvatar(player.getUniqueId())) {
        sender.sendMessage(GeneralMethods.getAvatarColor() + "String_Node_Str");
      }
 else       if (RPGMethods.hasBeenAvatar(player.getUniqueId())) {
        sender.sendMessage(GeneralMethods.getAvatarColor() + "String_Node_Str");
      }
    }
    if (staff.containsKey(uuid.toString())) {
      sender.sendMessage(staff.get(uuid.toString()));
    }
  }
 else {
    sender.sendMessage(ChatColor.GREEN + "String_Node_Str");
    new BukkitRunnable(){
      @Override public void run(){
        ResultSet rs2=DBConnection.sql.readQuery("String_Node_Str" + playerName + "String_Node_Str");
        try {
          final List<String> messages=new ArrayList<String>();
          if (rs2.next()) {
            UUID uuid=UUID.fromString(rs2.getString("String_Node_Str"));
            String element=rs2.getString("String_Node_Str");
            messages.add(playerName + "String_Node_Str");
            if (element == null) {
              messages.add("String_Node_Str");
            }
 else {
              if (element.contains("String_Node_Str"))               messages.add(AirMethods.getAirColor() + "String_Node_Str");
              if (element.contains("String_Node_Str"))               messages.add(WaterMethods.getWaterColor() + "String_Node_Str");
              if (element.contains("String_Node_Str"))               messages.add(EarthMethods.getEarthColor() + "String_Node_Str");
              if (element.contains("String_Node_Str"))               messages.add(FireMethods.getFireColor() + "String_Node_Str");
              if (element.contains("String_Node_Str"))               messages.add(ChiMethods.getChiColor() + "String_Node_Str");
            }
            if (GeneralMethods.hasRPG()) {
              if (RPGMethods.isCurrentAvatar(uuid)) {
                messages.add(GeneralMethods.getAvatarColor() + "String_Node_Str");
              }
 else               if (RPGMethods.hasBeenAvatar(uuid)) {
                messages.add(GeneralMethods.getAvatarColor() + "String_Node_Str");
              }
            }
            if (staff.containsKey(uuid)) {
              messages.add(staff.get(uuid));
            }
          }
 else {
            messages.add(ChatColor.RED + "String_Node_Str");
          }
          new BukkitRunnable(){
            @Override public void run(){
              for (              String message : messages) {
                sender.sendMessage(message);
              }
            }
          }
.runTask(ProjectKorra.plugin);
        }
 catch (        SQLException e) {
          e.printStackTrace();
        }
      }
    }
.runTaskAsynchronously(ProjectKorra.plugin);
  }
}