Update the comments

src/main/java/net/tonimatasdev/perworldplugins/PerWorldPlugins.java

@@ -20,7 +20,7 @@ public static PerWorldPlugins getInstance() {
 
     @Override
     public void onLoad() {
-        // Enable PerWorldPlugins
+        // Enable PerWorldPlugins.
         this.getPluginLoader().enablePlugin(this);
     }
 
@@ -62,8 +62,9 @@ public void onEnable() {
 
     @Override
     public void onDisable() {
-        // Save config and disable the plugin.
+        // Reload the config.
         this.reloadConfig();
+        // Save the config.
         this.saveConfig();
     }
 }

src/main/java/net/tonimatasdev/perworldplugins/api/PerWorldRegisteredListener.java

@@ -18,23 +18,24 @@ public class PerWorldRegisteredListener extends RegisteredListener {
 
     public PerWorldRegisteredListener(Listener listener, EventExecutor executor, EventPriority priority, Plugin plugin, boolean ignoreCancelled) {
         super(listener, executor, priority, plugin, ignoreCancelled);
-        this.disabledWorlds = new ArrayList<>();
+        this.disabledWorlds = new ArrayList<>(); // Set empty list.
     }
 
     @SuppressWarnings("NullableProblems")
     public void callEvent(Event event) {
         // If X-Events get player and detect if blocked so that it is not run.
-
         if (PerWorldUtils.checkEvent(event, this.disabledWorlds)) return;
 
         try {
             // Execute the event if it is not blocked.
             super.callEvent(event);
         } catch (Throwable ex) {
+            // Send error message.
             Bukkit.getServer().getLogger().log(Level.SEVERE, "Could not pass event " + event.getEventName() + " to " + getPlugin().getName() + " v" + getPlugin().getDescription().getVersion(), ex);
         }
     }
 
+    // Method to set all disabled worlds.
     public void setDisabledWorlds() {
         this.disabledWorlds = PerWorldUtils.getDisabledWorlds(getPlugin());
     }

src/main/java/net/tonimatasdev/perworldplugins/api/PerWorldTimedRegisteredListener.java

@@ -18,7 +18,7 @@ public class PerWorldTimedRegisteredListener extends TimedRegisteredListener {
 
     public PerWorldTimedRegisteredListener(Listener listener, EventExecutor executor, EventPriority priority, Plugin plugin, boolean ignoreCancelled) {
         super(listener, executor, priority, plugin, ignoreCancelled);
-        this.disabledWorlds = new ArrayList<>();
+        this.disabledWorlds = new ArrayList<>(); // Set empty list. 
     }
 
     @SuppressWarnings("NullableProblems")
@@ -30,10 +30,12 @@ public void callEvent(Event event) {
             // Execute the event if it is not blocked.
             super.callEvent(event);
         } catch (Throwable ex) {
+            // Send error message.
             Bukkit.getServer().getLogger().log(Level.SEVERE, "Could not pass event " + event.getEventName() + " to " + getPlugin().getName() + " v" + getPlugin().getDescription().getVersion(), ex);
         }
     }
 
+    // Method to set all disabled worlds.
     public void setDisabledWorlds() {
         this.disabledWorlds = PerWorldUtils.getDisabledWorlds(getPlugin());
     }

src/main/java/net/tonimatasdev/perworldplugins/command/PrimaryCommand.java

@@ -11,7 +11,6 @@
 import java.util.Collections;
 import java.util.List;
 import java.util.Objects;
-import java.util.stream.Collectors;
 
 @SuppressWarnings("NullableProblems")
 public class PrimaryCommand extends Command {
@@ -51,9 +50,11 @@ public boolean execute(CommandSender sender, String commandLabel, String[] args)
 
     // Method to detect if the player has permissions or not with a message in false case.
     private boolean hasPermission(CommandSender sender, String permission) {
+        // Check if the sender has permissions.
         if (sender.hasPermission(permission)) {
             return true;
         } else {
+            // Send a message if sender not has permissions.
             sender.sendMessage(getPrefix(ChatColor.DARK_RED) + "You don't have permissions for execute this command");
             return false;
         }
@@ -67,20 +68,21 @@ private String getPrefix(ChatColor chatColor) {
     // Command tab completer.
     @Override
     public List<String> tabComplete(CommandSender sender, String alias, String[] args) throws IllegalArgumentException {
-        // If the command name is "perworldplugins"
+        // If the command name is "perworldplugins".
         if (alias.equalsIgnoreCase("perworldplugins")) {
-            // Create a list for arguments
+            // Create a list for arguments.
             List<String> argList = new ArrayList<>();
 
             // If argument is 1.
             if (Objects.requireNonNull(args).length == 1) {
                 // Add the possible arguments.
                 argList.add("version");
                 argList.add("reload");
-                return argList.stream().filter(a -> a.startsWith(args[0])).collect(Collectors.toList());
+                return argList;
             }
         }
 
+        // Return an empty list if nothing works.
         return Collections.emptyList();
     }
 

src/main/java/net/tonimatasdev/perworldplugins/listener/Listeners.java

@@ -25,11 +25,10 @@ public void onPluginEnable(PluginEnableEvent event) {
         CommandManager.addPluginCommands(event.getPlugin());
 
         // Create individual sections for plugins in the config.
-
         if (PerWorldPlugins.getInstance().getConfig().getStringList("plugins." + event.getPlugin().getName()).isEmpty()) {
-            PerWorldPlugins.getInstance().getConfig().set("plugins." + event.getPlugin().getName(), Collections.singletonList("Example"));
-            PerWorldPlugins.getInstance().saveConfig();
-            PerWorldPlugins.getInstance().reloadConfig();
+            PerWorldPlugins.getInstance().getConfig().set("plugins." + event.getPlugin().getName(), Collections.singletonList("Example")); // Add default list.
+            PerWorldPlugins.getInstance().saveConfig(); // Save config.
+            PerWorldPlugins.getInstance().reloadConfig(); // Reload config.
         }
     }
 
@@ -53,6 +52,7 @@ public void onCommandPreProcess(PlayerCommandPreprocessEvent event) {
                     Objects.requireNonNull(Objects.requireNonNull(PerWorldPlugins.getInstance().getConfig().getString("disabledCommandMessage"))
                             .replaceAll("\\{world}", event.getPlayer().getWorld().getName())
                             .replaceAll("\\{player}", event.getPlayer().getName()))));
+
             // Cancel the event.
             event.setCancelled(true);
         }

src/main/java/net/tonimatasdev/perworldplugins/manager/CommandManager.java

@@ -20,7 +20,7 @@ public class CommandManager implements Listener {
     public static void addPluginCommands(Plugin plugin) {
         // Get all commands
         for (Command command : getCommands().values()) {
-            // Detect if the command is a default command or is already registered
+            // Detect if the command is a default command or is already registered.
             if (defaultCommands.contains(command.getName()) || pluginMap.containsKey(command)) continue;
             // Get PerWorldCommand and add to perWorldCommands list.
             pluginMap.put(command, plugin);

src/main/java/net/tonimatasdev/perworldplugins/manager/ListenerManager.java

@@ -58,32 +58,33 @@ public static void convert() {
     }
 
     public static void setWorldsToEvents() {
-        // Get PerWorldPlugins
+        // Get PerWorldPlugins.
         Plugin perWorldPlugins = PerWorldPlugins.getInstance();
 
         for (Plugin plugin : Bukkit.getPluginManager().getPlugins()) {
-            // Check if the plugin is PerWorldPlugins
+            // Check if the plugin is PerWorldPlugins.
             if (plugin.equals(perWorldPlugins)) continue;
 
             for (RegisteredListener registeredListener : HandlerList.getRegisteredListeners(plugin)) {
 
-                // Create handled variable
+                // Create handled variable.
                 boolean handled = false;
 
-                // Use try because, some performance server softwares delete TimedRegisteredListener class
+                // Use try because, some performance server softwares delete TimedRegisteredListener class.
                 try {
                     if (registeredListener instanceof PerWorldRegisteredListener) {
                         // RegisteredListener to PerWorldTimedRegisteredListener.
                         ((PerWorldRegisteredListener) registeredListener).setDisabledWorlds();
-                        // Change handled to true
+                        // Change handled to true.
                         handled = true;
                     }
                 } catch (Exception ignore) {
-                    // Do nothing
+                    // Do nothing.
                 }
 
-                // Check if it is handled or is a PerWorldTimeRegisteredListener
+                // Check if it is handled or is a PerWorldTimeRegisteredListener.
                 if (!handled && registeredListener instanceof PerWorldTimedRegisteredListener){
+                    // Set disabled worlds.
                     ((PerWorldTimedRegisteredListener) registeredListener).setDisabledWorlds();
                 }
             }

src/main/java/net/tonimatasdev/perworldplugins/util/PerWorldUtils.java

@@ -24,10 +24,11 @@ public class PerWorldUtils {
     public static List<String> getDisabledWorlds(Plugin plugin) {
         List<String> worldList = PerWorldPlugins.getInstance().getConfig().getStringList("plugins." + plugin.getName());
 
+        // Check if it has and :ignore.
         if (worldList.contains(":ignore") || worldList.isEmpty()) return new ArrayList<>();
 
         List<String> withGroupWorlds = new ArrayList<>(worldList);
-        // Check if any group contains the world
+        // Check if any group contains the world.
         for (String var : worldList) {
             // Detects if the string starts with "g:".
             if (var.startsWith("g:")) {
@@ -40,22 +41,26 @@ public static List<String> getDisabledWorlds(Plugin plugin) {
             }
         }
 
+        // Check if the config is a blacklist or whitelist.
         if (PerWorldPlugins.getInstance().getConfig().getBoolean("blacklist")) {
-            return withGroupWorlds;
+            return withGroupWorlds; // Return blacklist worlds.
         } else {
             List<String> serverWorlds = new ArrayList<>();
             try {
+                // Add all world names.
                 serverWorlds.addAll(Bukkit.getWorlds().stream().map(World::getName).collect(Collectors.toList()));
             } catch (Exception e) {
+                // Send error message on console.
                 Bukkit.getConsoleSender().sendMessage(ChatColor.RED + "Error on get blocked worlds of: " + plugin.getName());
             }
+            // Remove all whitelisted worlds.
             serverWorlds.removeAll(withGroupWorlds);
-            return serverWorlds;
+            return serverWorlds; // Return not whitelisted worlds.
         }
     }
 
     public static boolean checkEvent(Event event, List<String> disabledWorlds) {
-        // Get world for every type of Event
+        // Get world for every type of Event.
         if (event instanceof PlayerEvent) {
             return disabledWorlds.contains(((PlayerEvent) event).getPlayer().getWorld().getName());
         } else if (event instanceof EntityEvent) {

src/main/java/net/tonimatasdev/perworldplugins/util/UpdateChecker.java

@@ -31,6 +31,7 @@ public static void check() {
                 Bukkit.getConsoleSender().sendMessage(PerWorldPlugins.getInstance().getName() + ChatColor.RED + " You can download it at: " + ChatColor.WHITE + "https://www.spigotmc.org/resources/perworldplugins.96161/");
             }
         } catch (Exception var3) {
+            // Send the error message.
             Bukkit.getConsoleSender().sendMessage(PerWorldPlugins.getInstance().getName() + ChatColor.RED + " Error while checking update.");
         }
     }