Program: 94032
Project: 94032
Buggy source:
public static void sendMessage(Message type,Player player){
  if (AuthDB.craftircHandle != null && Config.CraftIRC_enabled == true) {
    if (type.equals(Message.database_failure)) {
      AuthDB.craftircHandle.sendMessageToTag(Util.replaceStrings(Config.CraftIRC_prefix,null,"String_Node_Str") + "String_Node_Str" + Util.replaceStrings(Messages.AuthDB_message_database_failure,player,"String_Node_Str"),Config.CraftIRC_tag);
    }
    if (type.equals(Message.welcome_guest) || type.equals(Message.login_prompt) || type.equals(Message.login_normal)) {
      AuthDB.craftircHandle.sendMessageToTag(Util.replaceStrings(Config.CraftIRC_prefix,null,"String_Node_Str") + "String_Node_Str" + Util.replaceStrings(Messages.CraftIRC_message_status_join,player,"String_Node_Str"),Config.CraftIRC_tag);
    }
 else     if (type.equals(Message.left_server)) {
      AuthDB.craftircHandle.sendMessageToTag(Util.replaceStrings(Config.CraftIRC_prefix,null,"String_Node_Str") + "String_Node_Str" + Util.replaceStrings(Messages.CraftIRC_message_status_quit,player,"String_Node_Str"),Config.CraftIRC_tag);
    }
 else     if (type.equals(Message.register_success)) {
      AuthDB.craftircHandle.sendMessageToTag(Util.replaceStrings(Config.CraftIRC_prefix,null,"String_Node_Str") + "String_Node_Str" + Util.replaceStrings(Messages.CraftIRC_message_register_success,player,"String_Node_Str"),Config.CraftIRC_tag);
    }
 else     if (type.equals(Message.register_failure)) {
      AuthDB.craftircHandle.sendMessageToTag(Util.replaceStrings(Config.CraftIRC_prefix,null,"String_Node_Str") + "String_Node_Str" + Util.replaceStrings(Messages.CraftIRC_message_register_failure,player,"String_Node_Str"),Config.CraftIRC_tag);
    }
 else     if (type.equals(Message.register_exists)) {
      AuthDB.craftircHandle.sendMessageToTag(Util.replaceStrings(Config.CraftIRC_prefix,null,"String_Node_Str") + "String_Node_Str" + Util.replaceStrings(Messages.CraftIRC_message_register_registered,player,"String_Node_Str"),Config.CraftIRC_tag);
    }
 else     if (type.equals(Message.password_success)) {
      AuthDB.craftircHandle.sendMessageToTag(Util.replaceStrings(Config.CraftIRC_prefix,null,"String_Node_Str") + "String_Node_Str" + Util.replaceStrings(Messages.CraftIRC_message_password_success,player,"String_Node_Str"),Config.CraftIRC_tag);
    }
 else     if (type.equals(Message.password_failure)) {
      AuthDB.craftircHandle.sendMessageToTag(Util.replaceStrings(Config.CraftIRC_prefix,null,"String_Node_Str") + "String_Node_Str" + Util.replaceStrings(Messages.CraftIRC_message_password_failure,player,"String_Node_Str"),Config.CraftIRC_tag);
    }
 else     if (type.equals(Message.filter_renamed)) {
      AuthDB.craftircHandle.sendMessageToTag(Util.replaceStrings(Config.CraftIRC_prefix,null,"String_Node_Str") + "String_Node_Str" + Util.replaceStrings(Messages.CraftIRC_message_filter_renamed,player,"String_Node_Str"),Config.CraftIRC_tag);
    }
 else     if (type.equals(Message.filter_username)) {
      AuthDB.craftircHandle.sendMessageToTag(Util.replaceStrings(Config.CraftIRC_prefix,null,"String_Node_Str") + "String_Node_Str" + Util.replaceStrings(Messages.CraftIRC_message_filter_kicked,player,"String_Node_Str"),Config.CraftIRC_tag);
    }
 else     if (type.equals(Message.filter_whitelist)) {
      AuthDB.craftircHandle.sendMessageToTag(Util.replaceStrings(Config.CraftIRC_prefix,null,"String_Node_Str") + "String_Node_Str" + Util.replaceStrings(Messages.CraftIRC_message_filter_whitelist,player,"String_Node_Str"),Config.CraftIRC_tag);
    }
 else     if (type.equals(Message.OnEnable)) {
      AuthDB.craftircHandle.sendMessageToTag(Util.replaceStrings(Config.CraftIRC_prefix,null,"String_Node_Str") + "String_Node_Str" + "String_Node_Str"+ AuthDB.pluginName+ "String_Node_Str"+ AuthDB.pluginVersion+ "String_Node_Str",Config.CraftIRC_tag);
    }
 else     if (type.equals(Message.OnDisable)) {
      AuthDB.craftircHandle.sendMessageToTag(Util.replaceStrings(Config.CraftIRC_prefix,null,"String_Node_Str") + "String_Node_Str" + "String_Node_Str"+ AuthDB.pluginName+ "String_Node_Str"+ AuthDB.pluginVersion+ "String_Node_Str",Config.CraftIRC_tag);
    }
  }
}

Fixed version (ground truth):
public static void sendMessage(Message type,Player player){
  if (AuthDB.craftircHandle != null && Config.CraftIRC_enabled == true) {
    if (type.equals(Message.database_failure)) {
      AuthDB.craftircHandle.sendMessageToTag(Util.replaceStrings(Config.CraftIRC_prefix,null,"String_Node_Str") + "String_Node_Str" + Util.replaceStrings(Messages.AuthDB_message_database_failure,player,"String_Node_Str"),Config.CraftIRC_tag);
    }
    if (type.equals(Message.register_welcome) || type.equals(Message.login_prompt) || type.equals(Message.login_normal)) {
      AuthDB.craftircHandle.sendMessageToTag(Util.replaceStrings(Config.CraftIRC_prefix,null,"String_Node_Str") + "String_Node_Str" + Util.replaceStrings(Messages.CraftIRC_message_status_join,player,"String_Node_Str"),Config.CraftIRC_tag);
    }
 else     if (type.equals(Message.left_server)) {
      AuthDB.craftircHandle.sendMessageToTag(Util.replaceStrings(Config.CraftIRC_prefix,null,"String_Node_Str") + "String_Node_Str" + Util.replaceStrings(Messages.CraftIRC_message_status_quit,player,"String_Node_Str"),Config.CraftIRC_tag);
    }
 else     if (type.equals(Message.register_success)) {
      AuthDB.craftircHandle.sendMessageToTag(Util.replaceStrings(Config.CraftIRC_prefix,null,"String_Node_Str") + "String_Node_Str" + Util.replaceStrings(Messages.CraftIRC_message_register_success,player,"String_Node_Str"),Config.CraftIRC_tag);
    }
 else     if (type.equals(Message.register_failure)) {
      AuthDB.craftircHandle.sendMessageToTag(Util.replaceStrings(Config.CraftIRC_prefix,null,"String_Node_Str") + "String_Node_Str" + Util.replaceStrings(Messages.CraftIRC_message_register_failure,player,"String_Node_Str"),Config.CraftIRC_tag);
    }
 else     if (type.equals(Message.register_exists)) {
      AuthDB.craftircHandle.sendMessageToTag(Util.replaceStrings(Config.CraftIRC_prefix,null,"String_Node_Str") + "String_Node_Str" + Util.replaceStrings(Messages.CraftIRC_message_register_registered,player,"String_Node_Str"),Config.CraftIRC_tag);
    }
 else     if (type.equals(Message.password_success)) {
      AuthDB.craftircHandle.sendMessageToTag(Util.replaceStrings(Config.CraftIRC_prefix,null,"String_Node_Str") + "String_Node_Str" + Util.replaceStrings(Messages.CraftIRC_message_password_success,player,"String_Node_Str"),Config.CraftIRC_tag);
    }
 else     if (type.equals(Message.password_failure)) {
      AuthDB.craftircHandle.sendMessageToTag(Util.replaceStrings(Config.CraftIRC_prefix,null,"String_Node_Str") + "String_Node_Str" + Util.replaceStrings(Messages.CraftIRC_message_password_failure,player,"String_Node_Str"),Config.CraftIRC_tag);
    }
 else     if (type.equals(Message.filter_renamed)) {
      AuthDB.craftircHandle.sendMessageToTag(Util.replaceStrings(Config.CraftIRC_prefix,null,"String_Node_Str") + "String_Node_Str" + Util.replaceStrings(Messages.CraftIRC_message_filter_renamed,player,"String_Node_Str"),Config.CraftIRC_tag);
    }
 else     if (type.equals(Message.filter_username)) {
      AuthDB.craftircHandle.sendMessageToTag(Util.replaceStrings(Config.CraftIRC_prefix,null,"String_Node_Str") + "String_Node_Str" + Util.replaceStrings(Messages.CraftIRC_message_filter_kicked,player,"String_Node_Str"),Config.CraftIRC_tag);
    }
 else     if (type.equals(Message.filter_whitelist)) {
      AuthDB.craftircHandle.sendMessageToTag(Util.replaceStrings(Config.CraftIRC_prefix,null,"String_Node_Str") + "String_Node_Str" + Util.replaceStrings(Messages.CraftIRC_message_filter_whitelist,player,"String_Node_Str"),Config.CraftIRC_tag);
    }
 else     if (type.equals(Message.OnEnable)) {
      AuthDB.craftircHandle.sendMessageToTag(Util.replaceStrings(Config.CraftIRC_prefix,null,"String_Node_Str") + "String_Node_Str" + "String_Node_Str"+ AuthDB.pluginName+ "String_Node_Str"+ AuthDB.pluginVersion+ "String_Node_Str",Config.CraftIRC_tag);
    }
 else     if (type.equals(Message.OnDisable)) {
      AuthDB.craftircHandle.sendMessageToTag(Util.replaceStrings(Config.CraftIRC_prefix,null,"String_Node_Str") + "String_Node_Str" + "String_Node_Str"+ AuthDB.pluginName+ "String_Node_Str"+ AuthDB.pluginVersion+ "String_Node_Str",Config.CraftIRC_tag);
    }
  }
}