Minor Version Update 1.1.0

Changes:
  - Converted messaging to Kyori Adventure Components
  - Miscellaneous code tweaks and organization

build.gradle

@@ -4,7 +4,7 @@ plugins {
 }
 
 version project.properties["pluginVersion"]
-targetCompatibility = sourceCompatibility = JavaVersion.VERSION_11
+targetCompatibility = sourceCompatibility = JavaVersion.VERSION_17
 
 repositories {
     mavenCentral()
@@ -13,10 +13,7 @@ repositories {
     [
             "https://jitpack.io",
             "https://papermc.io/repo/repository/maven-public/",
-            "https://oss.sonatype.org/content/groups/public/",
+            "https://os1.oss.sonatype.org/content/groups/public/"
-            "https://repo.extendedclip.com/content/repositories/placeholderapi/",
-            "http://repo.comphenix.net/content/repositories/releases/",
-            "http://repo.comphenix.net/content/repositories/snapshots/"
     ].each { s ->
         maven {
             url s
@@ -27,24 +24,15 @@ repositories {
 dependencies {
     //provided
     [
-            "com.destroystokyo.paper:paper-api:1.16.4-R0.1-SNAPSHOT",
+            "io.papermc.paper:paper-api:1.18-R0.1-SNAPSHOT",
-            "net.md-5:bungeecord-api:1.16-R0.4-SNAPSHOT",
-            "io.github.waterfallmc:waterfall-api:1.16-R0.4-SNAPSHOT",
-            "me.clip:placeholderapi:2.10.9",
-            files("libs/spigot-1.16.5.jar"),
-            files("libs/spigot-1.16.4.jar")
     ].each {s ->
         compileOnly s
     }
 
-    compileOnly ("com.github.dmulloy2:ProtocolLib:4.5.1") {
-        exclude group: "com.comphenix.executors"
-    }
-
     //compile
     [
-            "org.jetbrains:annotations:20.1.0",
+            "org.jetbrains:annotations:23.0.0",
-            "org.reflections:reflections:0.9.12"
+            "org.reflections:reflections:0.10.2"
     ].each {s ->
         implementation s
     }
@@ -63,6 +51,17 @@ shadowJar {
     }
 }
 
+apply plugin: 'maven-publish'
+apply plugin: 'signing'
+
+signing {
+    sign configurations.archives
+}
+
+group = "io.github.simplexdevelopment"
+archivesBaseName = "simplex-core"
+version = "1.0.0"
+
 processResources {
     //update resources when building
     doFirst {

gradle/wrapper/gradle-wrapper.properties

@@ -1,5 +1,5 @@
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-6.5.1-bin.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-7.2-bin.zip
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists

src/main/java/io/github/simplexdev/api/IBan.java

@@ -1,6 +1,7 @@
 package io.github.simplexdev.api;
 
 import io.github.simplexdev.simplexcore.ban.BanType;
+import net.kyori.adventure.text.Component;
 
 import java.util.Date;
 import java.util.UUID;
@@ -10,7 +11,7 @@ public interface IBan {
 
     String getSender();
 
-    String getBanReason();
+    Component getBanReason();
 
     String getBanId();
 

src/main/java/io/github/simplexdev/api/IGUI.java

@@ -1,6 +1,7 @@
 package io.github.simplexdev.api;
 
 import io.github.simplexdev.api.func.ClickAction;
+import net.kyori.adventure.text.Component;
 import org.bukkit.Material;
 import org.bukkit.entity.Player;
 import org.bukkit.inventory.Inventory;
@@ -74,10 +75,10 @@ public interface IGUI {
      * Creates a new ItemStack instance to place in the inventory provided by the interface instance.
      * @param material The item material
      * @param name The name of the item
-     * @param lore Optional item descriptions
+     * @param lore Optional item descriptions, as components.
      * @return The newly created item
      */
-    ItemStack newItem(@NotNull Material material, @NotNull String name, String... lore);
+    ItemStack newItem(@NotNull Material material, @NotNull String name, Component... lore);
 
     /**
      * Creates a new ItemStack instance to place in the inventory provided by the interface instance.

src/main/java/io/github/simplexdev/api/func/VoidSupplier.java

@@ -1,10 +1,12 @@
 package io.github.simplexdev.api.func;
 
+import org.jetbrains.annotations.NotNull;
+
 @FunctionalInterface
 public interface VoidSupplier {
     void get();
 
-    default VoidSupplier after(VoidSupplier supplier) {
+    default VoidSupplier after(@NotNull VoidSupplier supplier) {
         supplier.get();
         return this;
     }

src/main/java/io/github/simplexdev/simplexcore/CoreState.java

@@ -7,18 +7,10 @@ public class CoreState {
     public CoreState(SimplexCorePlugin plugin) {
         this.plugin = plugin;
         switch (getState()) {
-            case ON:
+            case ON -> message = "The Core is currently ON";
-                message = "The Core is currently ON";
+            case SUSPENDED -> message = "The Core is currently SUSPENDED. Please report this to the developer.";
-                break;
+            case DEBUG -> message = "The Core is currently in DEBUG mode. Do not use this if you don't know what you're doing.";
-            case SUSPENDED:
+            case VOLATILE -> message = "The Core state is currently unknown! Please report this to the developer!";
-                message = "The Core is currently SUSPENDED. Please report this to the developer.";
-                break;
-            case DEBUG:
-                message = "The Core is currently in DEBUG mode. Do not use this if you don't know what you're doing.";
-                break;
-            case VOLATILE:
-                message = "The Core state is currently unknown! Please report this to the developer!";
-                break;
         }
     }
 

src/main/java/io/github/simplexdev/simplexcore/ban/Ban.java

@@ -9,6 +9,7 @@ import io.github.simplexdev.simplexcore.listener.SimplexListener;
 import io.github.simplexdev.simplexcore.module.SimplexModule;
 import io.github.simplexdev.simplexcore.utils.TickedTime;
 import io.github.simplexdev.simplexcore.utils.Utilities;
+import net.kyori.adventure.text.Component;
 import org.bukkit.command.CommandSender;
 import org.bukkit.configuration.ConfigurationSection;
 import org.bukkit.entity.Player;
@@ -33,7 +34,7 @@ public abstract class Ban implements IBan {
     private final SimplexModule<?> plugin;
 
     private final String banId;
-    private final String banReason;
+    private final Component banReason;
 
     /**
      * Creates a new Ban Entry.
@@ -79,7 +80,7 @@ public abstract class Ban implements IBan {
      * @param banDate The date when the ban was created.
      * @param banDuration How long the ban should last.
      */
-    public Ban(SimplexModule<?> plugin, Player player, CommandSender sender, BanType type, String banId, String banReason, Date banDate, long banDuration) {
+    public Ban(SimplexModule<?> plugin, Player player, CommandSender sender, BanType type, String banId, Component banReason, Date banDate, long banDuration) {
         this.plugin = plugin;
         this.player = player;
         this.sender = sender;
@@ -92,18 +93,20 @@ public abstract class Ban implements IBan {
 
     /**
      * Writes the Ban to a file.
-     * @param separateFiles Whether or not to create individual files for players or store them all in one bans.yml file.
+     * @param separateFiles Whether to create individual files for players or store
+     *                     them all in one bans.yml file.
      */
     public void writeToFile(boolean separateFiles) {
         File fileLocation = new File(plugin.getParentFolder(), "bans");
 
+        Yaml yaml;
         if (separateFiles) {
-            Yaml yaml = new YamlFactory(plugin).from(null, fileLocation, player.getName() + ".yml");
+            yaml = new YamlFactory(plugin).from(null, fileLocation, player.getName() + ".yml");
             ConfigurationSection section = yaml.getConfig().createSection(getOffender().toString());
             section.set("name", player.getName());
             section.set("ban_id", banId);
             section.set("sender", sender.getName());
-            section.set("reason", banReason);
+            section.set("reason", banReason.toString());
             section.set("duration", banDuration);
             section.set("date", banDate.getTime());
             section.set("type", type.toString());
@@ -112,14 +115,13 @@ public abstract class Ban implements IBan {
             } catch (IOException e) {
                 plugin.getLogger().severe(e.getMessage());
             }
-            yaml.reload();
         } else {
-            Yaml yaml = new YamlFactory(plugin).from(null, fileLocation, "bans.yml");
+            yaml = new YamlFactory(plugin).from(null, fileLocation, "bans.yml");
             ConfigurationSection section = yaml.getConfig().createSection(getOffender().toString());
             section.set("name", player.getName());
             section.set("ban_id", banId);
             section.set("sender", sender.getName());
-            section.set("reason", banReason);
+            section.set("reason", banReason.toString());
             section.set("duration", banDuration);
             section.set("date", banDate.getTime());
             section.set("type", type.toString());
@@ -128,7 +130,7 @@ public abstract class Ban implements IBan {
             } catch (IOException ex) {
                 plugin.getLogger().severe(ex.getMessage());
             }
-            yaml.reload();
         }
+        yaml.reload();
     }
 }

src/main/java/io/github/simplexdev/simplexcore/ban/BanFactory.java

@@ -4,12 +4,15 @@ import io.github.simplexdev.api.IBan;
 import io.github.simplexdev.api.func.VoidSupplier;
 import io.github.simplexdev.simplexcore.chat.Messages;
 import io.github.simplexdev.simplexcore.config.Yaml;
-import io.github.simplexdev.simplexcore.config.YamlFactory;
 import io.github.simplexdev.simplexcore.module.SimplexModule;
 import io.github.simplexdev.simplexcore.utils.TickedTime;
 import io.github.simplexdev.simplexcore.utils.Utilities;
+import net.kyori.adventure.text.Component;
 import org.bukkit.command.CommandSender;
 import org.bukkit.entity.Player;
+import org.jetbrains.annotations.Contract;
+import org.jetbrains.annotations.NotNull;
+import org.jetbrains.annotations.Nullable;
 
 import java.io.File;
 import java.util.Date;
@@ -24,7 +27,7 @@ public final class BanFactory {
     private final Date banDate;
     private final BanType type;
     private final String banId;
-    private String banReason;
+    private Component banReason;
     private long banDuration;
 
     public BanFactory(SimplexModule<?> plugin, Player player, CommandSender sender, Date banDate, BanType type) {
@@ -46,13 +49,13 @@ public final class BanFactory {
      * @param banReason   The reason for the ban. By default, this uses Messages#BAN for the message.
      * @return The current instance of BanFactory.
      */
-    public BanFactory defineOptional(long banDuration, String banReason) {
+    public BanFactory defineOptional(long banDuration, Component banReason) {
         this.banDuration = banDuration;
         this.banReason = banReason;
         return this;
     }
 
-    public void write(Yaml yaml, IBan ban) {
+    public void write(@NotNull Yaml yaml, @NotNull IBan ban) {
         yaml.set(pathway("offender"), ban.getOffender());
         yaml.set(pathway("sender"), ban.getSender());
         yaml.set(pathway("duration"), ban.getBanDuration());
@@ -63,7 +66,8 @@ public final class BanFactory {
         yaml.create();
     }
 
-    public Yaml read(File yamlFile) {
+    @Contract(pure = true)
+    public @Nullable Yaml read(File yamlFile) {
         return null;
     }
 
@@ -72,7 +76,8 @@ public final class BanFactory {
      *
      * @return A new ban instance.
      */
-    public Ban create() {
+    @Contract(" -> new")
+    public @NotNull Ban create() {
         return new Ban(plugin, player, sender, type, banDuration) {
             @Override
             public UUID getOffender() {
@@ -85,7 +90,7 @@ public final class BanFactory {
             }
 
             @Override
-            public String getBanReason() {
+            public Component getBanReason() {
                 return banReason;
             }
 
@@ -115,19 +120,23 @@ public final class BanFactory {
         // TODO
     }
 
-    public IBan getBan(String banId) {
+    @Contract(pure = true)
+    public @Nullable IBan getBan(String banId) {
         return null;
     }
 
-    public IBan getBan(Player player) {
+    @Contract(pure = true)
+    public @Nullable IBan getBan(Player player) {
         return null;
     }
 
-    public IBan getBan(UUID offenderUUID) {
+    @Contract(pure = true)
+    public @Nullable IBan getBan(UUID offenderUUID) {
         return null;
     }
 
-    private VoidSupplier assignBanDuration(Long... time) {
+    @Contract(pure = true)
+    private @NotNull VoidSupplier assignBanDuration(Long... time) {
         return () -> {
             if (type.equals(BanType.PERMANENT)) {
                 banDuration = TickedTime.YEAR * 99;
@@ -145,7 +154,7 @@ public final class BanFactory {
         };
     }
 
-    private String createBanId() {
+    private @NotNull String createBanId() {
         return Utilities.generateBanId(type);
     }
 }

src/main/java/io/github/simplexdev/simplexcore/ban/BanManager.java

@@ -7,6 +7,7 @@ import org.bukkit.Bukkit;
 import org.bukkit.OfflinePlayer;
 import org.bukkit.event.EventHandler;
 import org.bukkit.event.player.AsyncPlayerPreLoginEvent;
+import org.jetbrains.annotations.NotNull;
 import org.jetbrains.annotations.Nullable;
 
 import java.util.Date;
@@ -19,11 +20,9 @@ import static org.bukkit.event.player.AsyncPlayerPreLoginEvent.Result;
 
 public final class BanManager extends SimplexListener {
     private final Map<Ban, BanType> banMap = new HashMap<>();
-    private final SimplexModule<?> plugin;
 
     BanManager(SimplexModule<?> plugin) {
-        this.plugin = plugin;
+        super(plugin);
-        register(this, plugin);
     }
 
     public void addBan(Ban ban) {
@@ -47,7 +46,7 @@ public final class BanManager extends SimplexListener {
     }
 
     @EventHandler
-    public void banHandler(AsyncPlayerPreLoginEvent event) {
+    public void banHandler(@NotNull AsyncPlayerPreLoginEvent event) {
         UUID player = event.getUniqueId();
         OfflinePlayer op = Bukkit.getOfflinePlayer(player);
         Ban ban = getBan(op);

src/main/java/io/github/simplexdev/simplexcore/ban/BanType.java

@@ -1,5 +1,7 @@
 package io.github.simplexdev.simplexcore.ban;
 
+import org.jetbrains.annotations.NotNull;
+
 public enum BanType {
     PERMANENT("P-"),
     TEMPORARY("T-"),
@@ -12,7 +14,7 @@ public enum BanType {
         this.prefix = prefix;
     }
 
-    public static String value(BanType type) {
+    public static @NotNull String value(@NotNull BanType type) {
         if (type.equals(PERMANENT)) {
             return "Permanent";
         } else if (type.equals(TEMPORARY)) {
@@ -22,7 +24,7 @@ public enum BanType {
         }
     }
 
-    public static BanType getFromId(String banId) {
+    public static BanType getFromId(@NotNull String banId) {
         if (banId.startsWith("P")) {
             return PERMANENT;
         } else if (banId.startsWith("T")) {

src/main/java/io/github/simplexdev/simplexcore/block/AbstractSign.java

@@ -5,6 +5,7 @@ import io.github.simplexdev.api.func.VoidSupplier;
 import org.bukkit.Location;
 import org.bukkit.World;
 import org.bukkit.block.Sign;
+import org.jetbrains.annotations.NotNull;
 
 import java.util.Arrays;
 import java.util.List;
@@ -19,7 +20,7 @@ public abstract class AbstractSign implements IUsableSign {
     protected VoidSupplier executeScript = null;
     protected boolean canInteract = false;
 
-    protected AbstractSign(Sign sign) {
+    protected AbstractSign(@NotNull Sign sign) {
         this.sign = sign;
         this.location = sign.getLocation();
         this.world = sign.getWorld();

src/main/java/io/github/simplexdev/simplexcore/chat/ChatUtils.java

@@ -1,17 +1,20 @@
 package io.github.simplexdev.simplexcore.chat;
 
-import net.md_5.bungee.api.chat.TextComponent;
+import net.kyori.adventure.text.Component;
 import org.bukkit.command.CommandSender;
+import org.jetbrains.annotations.Contract;
+import org.jetbrains.annotations.NotNull;
 
 public final class ChatUtils {
-    protected final CommandSender target;
+    private final CommandSender target;
-    protected final TextComponentFactory factory = new TextComponentFactory();
+    private final TextComponentFactory factory = new TextComponentFactory();
 
     private <T extends CommandSender> ChatUtils(T target) {
         this.target = target;
     }
 
-    public static <T extends CommandSender> ChatUtils target(T target) {
+    @Contract("_ -> new")
+    public static <T extends CommandSender> @NotNull ChatUtils msgTarget(T target) {
         return new ChatUtils(target);
     }
 
@@ -19,21 +22,11 @@ public final class ChatUtils {
         target.sendMessage(message);
     }
 
-    public void msg(TextComponent component) {
+    public void msg(Component component) {
-        target.spigot().sendMessage(component);
+        target.sendMessage(component);
     }
 
-    public void err(Messages message) {
+    public void err(@NotNull Messages message) {
         target.sendMessage(message.getMessage());
     }
-
-    public void color(String message) {
-        target.sendMessage(factory.colorize(message));
-    }
-
-    public void color(TextComponent component) {
-        target.sendMessage(factory.colorize(component.getText()));
-    }
-
-
 }

src/main/java/io/github/simplexdev/simplexcore/chat/Messages.java

@@ -1,22 +1,23 @@
 package io.github.simplexdev.simplexcore.chat;
 
-import io.github.simplexdev.simplexcore.CoreState;
+import net.kyori.adventure.text.Component;
 
 public enum Messages {
-    NO_PERMS("You do not have permission to use this command!"),
+    NO_PERMS(Component.text("You do not have permission to use this command!")),
-    DISCORD("https://discord.gg/Rumx5dTJuf"),
+    DISCORD(Component.text("https://discord.gg/Rumx5dTJuf")),
-    BAN("You have been banned from this server."),
+    BAN(Component.text("You have been banned from this server.")),
-    KICK("You have been kicked by a moderator."),
+    KICK(Component.text("You have been kicked by a moderator.")),
-    AFK_KICK("You were kicked to ensure space for active players."),
+    AFK_KICK(Component.text("You were kicked to ensure space for active players.")),
-    PERMBAN("You are permanently banned from this server.");
+    PERMBAN(Component.text("You are permanently banned from this server."));
 
-    String message;
 
-    Messages(String message) {
+    final Component message;
+
+    Messages(Component message) {
         this.message = message;
     }
 
-    public String getMessage() {
+    public Component getMessage() {
         return message;
     }
 }

src/main/java/io/github/simplexdev/simplexcore/chat/TextComponentFactory.java

@@ -1,72 +1,43 @@
 package io.github.simplexdev.simplexcore.chat;
 
-import net.md_5.bungee.api.ChatColor;
+import net.kyori.adventure.key.Key;
-import net.md_5.bungee.api.chat.ClickEvent;
+import net.kyori.adventure.text.Component;
-import net.md_5.bungee.api.chat.HoverEvent;
+import net.kyori.adventure.text.TextComponent;
-import net.md_5.bungee.api.chat.TextComponent;
+import net.kyori.adventure.text.event.ClickEvent;
-import net.md_5.bungee.api.chat.hover.content.Text;
+import net.kyori.adventure.text.event.HoverEvent;
+import net.kyori.adventure.text.format.TextColor;
+import org.bukkit.inventory.ItemStack;
 import org.jetbrains.annotations.NotNull;
 import org.jetbrains.annotations.Nullable;
 
 public final class TextComponentFactory {
     @NotNull
     public TextComponent textComponent(@NotNull String message) {
-        TextComponent component = new TextComponent();
+        return Component.text(message);
-        component.setText(message);
-        return component;
     }
 
     @NotNull
-    public TextComponent clickableComponent(@NotNull String message, @NotNull String clickAction, @NotNull ClickEvent.Action actionType) {
+    public Component clickableComponent(@NotNull String message, @NotNull String clickAction, @NotNull ClickEvent.Action actionType) {
-        TextComponent comp = new TextComponent();
+        Component comp = Component.text(message);
-        ClickEvent onClick = new ClickEvent(actionType, clickAction);
+        ClickEvent onClick = ClickEvent.clickEvent(actionType, clickAction);
-        comp.setText(message);
+        return comp.clickEvent(onClick);
-        comp.setClickEvent(onClick);
-        return comp;
     }
 
     @NotNull
-    public TextComponent coloredComponent(@NotNull String message, @Nullable ChatColor color) {
+    public Component addColor(@NotNull Component component, @NotNull TextColor color) {
-        TextComponent component = new TextComponent();
+        return component.color(color);
-        if (color != null) component.setColor(color);
-        component.setText(message);
-        return component;
     }
 
     @NotNull
-    public TextComponent clickableColored(@NotNull String message, @NotNull String clickMessage, @NotNull ClickEvent.Action actionType, @Nullable ChatColor color) {
+    public Component resetColor(@NotNull Component component) {
-        TextComponent comp = new TextComponent();
+        return component.color(TextColor.fromHexString("#FFFFFF"));
-        ClickEvent onClick = new ClickEvent(actionType, clickMessage);
-        if (color != null) comp.setColor(color);
-        comp.setText(message);
-        comp.setClickEvent(onClick);
-        return comp;
     }
 
     @NotNull
-    public TextComponent addColor(@NotNull TextComponent component, @NotNull ChatColor color) {
+    public Component hoverText(@NotNull String message, @NotNull String hoverMessage) {
-        component.setColor(color);
+        Component comp = Component.text(message);
-        return component;
+        Component msg = Component.text(hoverMessage);
-    }
+        HoverEvent<Component> event = HoverEvent.showText(msg);
-
+        return comp.hoverEvent(event);
-    @NotNull
-    public TextComponent resetColor(@NotNull TextComponent component) {
-        component.setColor(ChatColor.RESET);
-        return component;
-    }
-
-    @NotNull
-    public TextComponent hoverableText(@NotNull String message, @NotNull String hoverMessage, @NotNull HoverEvent.Action action) {
-        TextComponent comp = new TextComponent();
-        comp.setText(message);
-        Text text = new Text(hoverMessage);
-        HoverEvent event = new HoverEvent(action, text);
-        comp.setHoverEvent(event);
-        return comp;
-    }
-
-    @NotNull
-    public String colorize(@NotNull String message) {
-        return ChatColor.translateAlternateColorCodes('&', message);
     }
 }

src/main/java/io/github/simplexdev/simplexcore/command/CommandLoader.java

@@ -2,6 +2,7 @@ package io.github.simplexdev.simplexcore.command;
 
 import io.github.simplexdev.api.annotations.CommandInfo;
 import io.github.simplexdev.simplexcore.SimplexCorePlugin;
+import io.github.simplexdev.simplexcore.chat.TextComponentFactory;
 import io.github.simplexdev.simplexcore.module.SimplexModule;
 import io.github.simplexdev.simplexcore.utils.ReflectionTools;
 import org.bukkit.command.CommandExecutor;
@@ -35,7 +36,6 @@ public final class CommandLoader {
 
     /**
      * Prepares the CommandLoader to load your plugin's commands from its own package location.
-     * This is synchronized, so it only registers commands from one plugin at a time.
      * All your commands MUST be placed in their own package.
      * <p>
      * If your command classes do not have the {@link CommandInfo} annotation, they will not be loaded.
@@ -78,6 +78,8 @@ public final class CommandLoader {
             throw new CommandLoaderException("Please run CommandLoader#classpath(SimplexModule, Class) first!");
         }
 
+        TextComponentFactory factory = new TextComponentFactory();
+
         reflections.getTypesAnnotatedWith(CommandInfo.class).forEach(annotated -> {
             CommandInfo info = annotated.getDeclaredAnnotation(CommandInfo.class);
 
@@ -105,7 +107,7 @@ public final class CommandLoader {
             command.setExecutor(getExecutorFromName(info.name()));
             command.setLabel(info.name().toLowerCase());
             command.setPermission(info.permission());
-            command.setPermissionMessage(info.permissionMessage());
+            command.permissionMessage(factory.textComponent(info.permissionMessage()));
             command.setTabCompleter(getTabFromName(info.name()));
             command.setUsage(info.usage());
             registry.registerCommand(command);

src/main/java/io/github/simplexdev/simplexcore/command/SimplexCommand.java

@@ -3,6 +3,9 @@ package io.github.simplexdev.simplexcore.command;
 import io.github.simplexdev.simplexcore.SimplexCorePlugin;
 import io.github.simplexdev.simplexcore.module.SimplexModule;
 import io.github.simplexdev.simplexcore.utils.Utilities;
+import net.kyori.adventure.text.Component;
+import net.kyori.adventure.text.ComponentBuilder;
+import net.kyori.adventure.text.JoinConfiguration;
 import org.bukkit.command.Command;
 import org.bukkit.command.CommandExecutor;
 import org.bukkit.command.CommandSender;
@@ -14,6 +17,7 @@ import org.jetbrains.annotations.Nullable;
 import java.util.ArrayList;
 import java.util.List;
 import java.util.UUID;
+import java.util.concurrent.atomic.AtomicReference;
 
 public abstract class SimplexCommand implements CommandExecutor, TabCompleter {
     private final SimplexModule<?> plugin;
@@ -71,23 +75,47 @@ public abstract class SimplexCommand implements CommandExecutor, TabCompleter {
      * @param player   The Player to send a message to
      * @param messages The messages to send.
      */
-    public void playerMsg(Player player, String... messages) {
+    public void playerMsg(@NotNull Player player, String... messages) {
         StringBuilder builder = new StringBuilder();
         Utilities.forEach(messages, builder::append);
-        player.sendMessage(builder.toString());
+        player.sendMessage(Component.text(builder.toString()));
     }
 
     /**
      * Send a message or a group of messages to a {@link CommandSender}
-     * If you want the messages to send on new lines, put \n at the end of each message to send.
+     * If you want the messages to send on separate lines,
+     * put \n at the end of each message to send.
      *
      * @param sender   The CommandSender to send a message to.
      * @param messages The messages to send.
      */
-    public void msg(CommandSender sender, String... messages) {
+    public void msg(@NotNull CommandSender sender, String... messages) {
         StringBuilder builder = new StringBuilder();
         Utilities.forEach(messages, builder::append);
-        sender.sendMessage(builder.toString());
+        sender.sendMessage(Component.text(builder.toString()));
+    }
+
+    /**
+     * Send a component or a group of components to a {@link CommandSender}.
+     * If you want the components to occupy separate lines,
+     * use the separator boolean.
+     *
+     * @param sender     The CommandSender to send components to
+     * @param components The components to send.
+     */
+    public void msg(@NotNull CommandSender sender, boolean separator, Component... components) {
+        if (separator) {
+            AtomicReference<Component> primary = new AtomicReference<>(Component.text(""));
+            AtomicReference<Component> temp = new AtomicReference<>(Component.text(""));
+            Utilities.forEach(components, component -> {
+                temp.set(Component.newline().append(component));
+                primary.set(primary.get().append(temp.get()));
+            }); // The way I'm doing this is probably unnecessary, but I did it anyway.
+            sender.sendMessage(primary.get());
+            return;
+        }
+
+        sender.sendMessage(Component.join(JoinConfiguration.builder().build(), components));
     }
 
     @Nullable

src/main/java/io/github/simplexdev/simplexcore/command/defaults/Command_info.java

@@ -4,6 +4,7 @@ import io.github.simplexdev.api.annotations.CommandInfo;
 import io.github.simplexdev.simplexcore.chat.Messages;
 import io.github.simplexdev.simplexcore.command.SimplexCommand;
 import io.github.simplexdev.simplexcore.module.SimplexModule;
+import net.kyori.adventure.text.Component;
 import org.bukkit.command.Command;
 import org.bukkit.command.CommandSender;
 import org.jetbrains.annotations.NotNull;

src/main/java/io/github/simplexdev/simplexcore/command/defaults/DefaultCommand.java

@@ -3,6 +3,7 @@ package io.github.simplexdev.simplexcore.command.defaults;
 import io.github.simplexdev.api.annotations.CommandInfo;
 import io.github.simplexdev.simplexcore.command.SimplexCommand;
 import io.github.simplexdev.simplexcore.module.SimplexModule;
+import net.kyori.adventure.text.Component;
 import org.bukkit.command.Command;
 import org.bukkit.command.CommandSender;
 import org.jetbrains.annotations.NotNull;
@@ -15,7 +16,7 @@ public final class DefaultCommand extends SimplexCommand {
 
     @Override
     public boolean onCommand(@NotNull CommandSender sender, @NotNull Command command, @NotNull String label, @NotNull String[] args) {
-        sender.sendMessage("If you are seeing this when running your command, your command didn't register properly.");
+        msg(sender, "If you are seeing this when running your command, your command didn't register properly.");
         return true;
     }
 }

src/main/java/io/github/simplexdev/simplexcore/config/Yaml.java

@@ -7,6 +7,8 @@ import io.github.simplexdev.simplexcore.module.SimplexModule;
 import org.bukkit.configuration.ConfigurationSection;
 import org.bukkit.configuration.file.FileConfiguration;
 import org.bukkit.configuration.file.YamlConfiguration;
+import org.jetbrains.annotations.Contract;
+import org.jetbrains.annotations.NotNull;
 
 import java.io.File;
 import java.io.IOException;
@@ -22,7 +24,7 @@ public final class Yaml implements IConfig {
     private File file;
 
     // Package private ;)
-    Yaml(SimplexModule<?> plugin, String fileName, File directory, String resourcePath) {
+    Yaml(SimplexModule<?> plugin, @NotNull String fileName, File directory, String resourcePath) {
         if (!fileName.endsWith(".yml")) {
             fileName += ".yml";
         }
@@ -38,71 +40,74 @@ public final class Yaml implements IConfig {
     }
 
     @Override
-    public final void set(Path path, Object value) {
+    public final void set(@NotNull Path path, Object value) {
         this.getConfig().set(path.getPath(), value);
     }
 
-    public boolean contains(Path path) {
+    public boolean contains(@NotNull Path path) {
         return this.getConfig().contains(path.getPath());
     }
 
-    public ConfigurationSection getConfigurationSection(Path path) {
+    public ConfigurationSection getConfigurationSection(@NotNull Path path) {
         return this.getConfig().getConfigurationSection(path.getPath());
     }
 
-    public List<String> getStringList(Path path) {
+    public @NotNull List<String> getStringList(@NotNull Path path) {
         return this.getConfig().getStringList(path.getPath());
     }
 
-    public long getLong(Path path) {
+    public long getLong(@NotNull Path path) {
         return this.getConfig().getLong(path.getPath());
     }
 
-    public List<?> getList(Path path) {
+    public List<?> getList(@NotNull Path path) {
         return this.getConfig().getList(path.getPath());
     }
 
-    public boolean getBoolean(Path path) {
+    public boolean getBoolean(@NotNull Path path) {
         return this.getConfig().getBoolean(path.getPath());
     }
 
-    public int getInt(Path path) {
+    public int getInt(@NotNull Path path) {
         return this.getConfig().getInt(path.getPath());
     }
 
-    public double getDouble(Path path) {
+    public double getDouble(@NotNull Path path) {
         return this.getConfig().getDouble(path.getPath());
     }
 
-    public String getString(Path path) {
+    public String getString(@NotNull Path path) {
         return this.getConfig().getString(path.getPath());
     }
 
-    public long getLong(Path path, long def) {
+    public long getLong(@NotNull Path path, long def) {
         return this.getConfig().getLong(path.getPath(), def);
     }
 
-    public List<?> getList(Path path, List<?> def) {
+    @Contract("_, !null -> !null")
+    public List<?> getList(@NotNull Path path, List<?> def) {
         return this.getConfig().getList(path.getPath(), def);
     }
 
-    public boolean getBoolean(Path path, boolean def) {
+    public boolean getBoolean(@NotNull Path path, boolean def) {
         return this.getConfig().getBoolean(path.getPath(), def);
     }
 
-    public int getInt(Path path, int def) {
+    public int getInt(@NotNull Path path, int def) {
         return this.getConfig().getInt(path.getPath(), def);
     }
 
-    public double getDouble(Path path, double def) {
+    public double getDouble(@NotNull Path path, double def) {
         return this.getConfig().getDouble(path.getPath(), def);
     }
 
-    public String getString(Path path, String def) {
+    @Contract("_, !null -> !null")
+    public String getString(@NotNull Path path, String def) {
         return this.getConfig().getString(path.getPath(), def);
     }
 
-    public Object get(Path path, Object def) {
+    @Contract("_, !null -> !null")
+    public Object get(@NotNull Path path, Object def) {
         return this.getConfig().get(path.getPath(), def);
     }
 

src/main/java/io/github/simplexdev/simplexcore/config/YamlFactory.java

@@ -4,6 +4,8 @@ import io.github.simplexdev.simplexcore.module.SimplexModule;
 import io.github.simplexdev.simplexcore.utils.Trio;
 import org.bukkit.configuration.file.FileConfiguration;
 import org.bukkit.configuration.file.YamlConfiguration;
+import org.jetbrains.annotations.Contract;
+import org.jetbrains.annotations.NotNull;
 
 import java.io.File;
 
@@ -17,22 +19,26 @@ public final class YamlFactory {
         this.plugin = plugin;
     }
 
-    public Yaml from(String resourcePath, File directory, String fileName) {
+    @Contract("_, _, _ -> new")
+    public @NotNull Yaml from(String resourcePath, File directory, String fileName) {
         this.resourcePath = resourcePath;
         this.directory = directory;
         this.fileName = fileName;
         return new Yaml(plugin, fileName, directory, resourcePath);
     }
 
-    public FileConfiguration load(File yamlFile) {
+    @Contract("_ -> new")
+    public @NotNull FileConfiguration load(File yamlFile) {
         return YamlConfiguration.loadConfiguration(yamlFile);
     }
 
-    public Yaml setDefaultPathways() {
+    @Contract(" -> new")
+    public @NotNull Yaml setDefaultPathways() {
         return from("config.yml", plugin.getDataFolder(), "config.yml");
     }
 
-    public Trio<String, File, String> pathways() {
+    @Contract(value = " -> new", pure = true)
+    public @NotNull Trio<String, File, String> pathways() {
         return new Trio<>(resourcePath, directory, fileName);
     }
 }

src/main/java/io/github/simplexdev/simplexcore/crafting/ItemBuilder.java

@@ -9,6 +9,7 @@ import org.bukkit.enchantments.Enchantment;
 import org.bukkit.inventory.ItemFlag;
 import org.bukkit.inventory.ItemStack;
 import org.bukkit.inventory.meta.ItemMeta;
+import org.jetbrains.annotations.NotNull;
 
 import java.util.Arrays;
 
@@ -90,7 +91,7 @@ public class ItemBuilder {
      * Create a new AttributeModifier for an ItemStack's ItemMeta.
      * @param name The name of the modifier.
      * @param amount The amount to add
-     * @param scalar Whether or not it should add as a number or a magnitude.
+     * @param scalar Whether it should add as a number or a magnitude.
      * @return A new AttributeModifier.
      */
     public AttributeModifier add(String name, double amount, boolean scalar) {
@@ -117,7 +118,7 @@ public class ItemBuilder {
         /**
          * @param stack The item to work from.
          */
-        public Worker(ItemStack stack) {
+        public Worker(@NotNull ItemStack stack) {
             this.stack = stack;
             this.meta = stack.getItemMeta();
         }
@@ -127,7 +128,7 @@ public class ItemBuilder {
          * @param lore The item lore to add.
          * @return An appendable worker instance.
          */
-        public final Worker addLore(String... lore) {
+        public Worker addLore(String... lore) {
             meta.setLore(Arrays.asList(lore));
             stack.setItemMeta(meta);
             return this;
@@ -138,7 +139,7 @@ public class ItemBuilder {
          * @param customName The new name of the item.
          * @return An appendable worker instance.
          */
-        public final Worker setName(String customName) {
+        public Worker setName(String customName) {
             meta.setDisplayName(customName);
             stack.setItemMeta(meta);
             return this;
@@ -150,7 +151,7 @@ public class ItemBuilder {
          * @param level The level of the enchantment. This is non-restrictive.
          * @return An appendable worker instance.
          */
-        public final Worker addEnchant(Enchantment enchantment, int level) {
+        public Worker addEnchant(Enchantment enchantment, int level) {
             meta.addEnchant(enchantment, level, true);
             stack.setItemMeta(meta);
             return this;
@@ -162,7 +163,7 @@ public class ItemBuilder {
          * @param modifier The type of attribute modifier to use.
          * @return An appendable worker instance.
          */
-        public final Worker addAttribute(Attribute attribute, AttributeModifier modifier) {
+        public Worker addAttribute(Attribute attribute, AttributeModifier modifier) {
             meta.addAttributeModifier(attribute, modifier);
             stack.setItemMeta(meta);
             return this;
@@ -173,7 +174,7 @@ public class ItemBuilder {
          * @param flags Any amount of ItemFlags to add to the item.
          * @return An appendable worker instance.
          */
-        public final Worker addItemFlags(ItemFlag... flags) {
+        public Worker addItemFlags(ItemFlag... flags) {
             meta.addItemFlags(flags);
             stack.setItemMeta(meta);
             return this;
@@ -184,17 +185,17 @@ public class ItemBuilder {
          * @param amount The amount of items this stack should represent.
          * @return An appendable worker instance.
          */
-        public final Worker setAmount(int amount) {
+        public Worker setAmount(int amount) {
             stack.setAmount(amount);
             return this;
         }
 
-        public final Worker setType(Material material) {
+        public Worker setType(Material material) {
             stack.setType(material);
             return this;
         }
 
-        public final Worker setUnbreakable(boolean unbreakable) {
+        public Worker setUnbreakable(boolean unbreakable) {
             meta.setUnbreakable(unbreakable);
             stack.setItemMeta(meta);
             return this;
@@ -203,14 +204,14 @@ public class ItemBuilder {
         /**
          * @return The final item.
          */
-        public final ItemStack getItem() {
+        public ItemStack getItem() {
             return stack;
         }
 
         /**
          * @return The ItemMeta of the item.
          */
-        public final ItemMeta getItemMeta() {
+        public ItemMeta getItemMeta() {
             return meta;
         }
     }

src/main/java/io/github/simplexdev/simplexcore/crafting/RecipeBuilder.java

@@ -12,6 +12,7 @@ import org.bukkit.inventory.ItemStack;
 import org.bukkit.inventory.Recipe;
 import org.bukkit.inventory.ShapedRecipe;
 import org.bukkit.inventory.ShapelessRecipe;
+import org.jetbrains.annotations.Contract;
 import org.jetbrains.annotations.NotNull;
 import org.jetbrains.annotations.Nullable;
 
@@ -35,7 +36,8 @@ public final class RecipeBuilder {
      * @param isShaped Whether or not the recipe is shaped or shapeless.
      * @return A new appendable RecipeBuilder Worker instance based on the given parameters.
      */
-    public final Worker newRecipe(ItemStack result, String recipeName, boolean isShaped) {
+    @Contract("_, _, _ -> new")
+    public @NotNull Worker newRecipe(ItemStack result, String recipeName, boolean isShaped) {
         return new Worker(result, recipeName, isShaped);
     }
 
@@ -60,7 +62,7 @@ public final class RecipeBuilder {
             this.shaped = isShaped;
         }
 
-        private ShapelessRecipe nosha() {
+        private @NotNull ShapelessRecipe nosha() {
             ShapelessRecipe recipe = new ShapelessRecipe(key, stack);
             if (materials.size() > 9 || materials.isEmpty()) return recipe;
             materials.forEach(recipe::addIngredient);
@@ -68,7 +70,7 @@ public final class RecipeBuilder {
             return recipe;
         }
 
-        private ShapedRecipe sha() {
+        private @NotNull ShapedRecipe sha() {
             ShapedRecipe recipe = new ShapedRecipe(key, stack);
             if (ingredients.isEmpty()) return recipe;
             recipe.shape(shape);

src/main/java/io/github/simplexdev/simplexcore/gui/AbstractGUI.java

@@ -2,6 +2,7 @@ package io.github.simplexdev.simplexcore.gui;
 
 import io.github.simplexdev.api.func.ClickAction;
 import io.github.simplexdev.api.IGUI;
+import net.kyori.adventure.text.Component;
 import org.bukkit.Bukkit;
 import org.bukkit.Material;
 import org.bukkit.entity.Player;
@@ -13,35 +14,34 @@ import org.jetbrains.annotations.NotNull;
 import org.jetbrains.annotations.Nullable;
 
 import java.util.*;
+import java.util.concurrent.atomic.AtomicInteger;
 
 public abstract class AbstractGUI implements InventoryHolder, IGUI {
     private final Inventory INV;
     private final Map<Integer, ClickAction> actions;
     private final UUID uuid;
-    private final Map<IGUI, List<AbstractGUI>> pagesByGUI = new HashMap<>();
-
-    private final List<Integer> validSize = new ArrayList<>(){{
-        add(9);
-        add(18);
-        add(27);
-        add(36);
-        add(45);
-        add(54);
-    }};
-
-    private int pages = 0;
 
     public static final Map<UUID, IGUI> invByUUId = new HashMap<>();
     public static final Map<UUID, UUID> openInvs = new HashMap<>();
+    private final Map<Integer, AbstractGUI> pages = new HashMap<>();
 
     public AbstractGUI(int size, String name) {
         uuid = UUID.randomUUID();
+        List<Integer> validSize = new ArrayList<>() {{
+            add(9);
+            add(18);
+            add(27);
+            add(36);
+            add(45);
+            add(54);
+        }};
         if (!validSize.contains(size)) {
-            throw new NumberFormatException("Inventory sizes must be a multiple of nine!");
+            throw new NumberFormatException("Inventory sizes must be a multiple of nine, and no larger than 54.");
         }
-        INV = Bukkit.createInventory(null, size, name);
+        INV = Bukkit.createInventory(null, size, Component.text(name));
         actions = new HashMap<>();
         invByUUId.put(getInvUUId(), this);
+        pages.put(0, this);
     }
 
     @Override
@@ -91,16 +91,25 @@ public abstract class AbstractGUI implements InventoryHolder, IGUI {
         invByUUId.remove(getInvUUId());
     }
 
+    // Maybe just use pages.size() ?
     public void addPage(AbstractGUI page) {
-        pages += 1;
+        pages.put(pages.size() + 1, page);
     }
 
     public void deletePage(AbstractGUI page) {
-        if (pages == 0) {
+        if (pages.isEmpty()) {
             return;
         }
 
-        pages -= 1;
+        AtomicInteger key = new AtomicInteger(0);
+        pages.forEach((key1, value) -> {
+            if (page.equals(value)) {
+                key.set(key1);
+            }
+        });
+        if (key.get() != 0) {
+            pages.remove(key, page);
+        }
     }
 
     public static Map<UUID, IGUI> getInvByUUId() {
@@ -117,21 +126,21 @@ public abstract class AbstractGUI implements InventoryHolder, IGUI {
     }
 
     @Override
-    public ItemStack newItem(@NotNull Material material, @NotNull String name, String... lore) {
+    public ItemStack newItem(@NotNull Material material, @NotNull String name, Component... lore) {
         ItemStack item = new ItemStack(material, 1);
         ItemMeta meta = item.getItemMeta();
         if (meta == null) {
             return item;
         }
-        meta.setDisplayName(name);
+        meta.displayName(Component.text(name));
-        ArrayList<String> metaLore = new ArrayList<>(Arrays.asList(lore));
+        ArrayList<Component> metaLore = new ArrayList<>(Arrays.asList(lore));
-        meta.setLore(metaLore);
+        meta.lore(metaLore);
         item.setItemMeta(meta);
         return item;
     }
 
     @Override
     public ItemStack newItem(@NotNull Material material, @NotNull String name) {
-        return newItem(material, name, "");
+        return newItem(material, name, Component.text(""));
     }
 }

src/main/java/io/github/simplexdev/simplexcore/gui/GUIHandler.java

@@ -9,21 +9,21 @@ import org.bukkit.event.EventHandler;
 import org.bukkit.event.EventPriority;
 import org.bukkit.event.inventory.InventoryClickEvent;
 import org.bukkit.event.inventory.InventoryCloseEvent;
+import org.jetbrains.annotations.NotNull;
 
 import java.util.UUID;
 
 public final class GUIHandler extends SimplexListener {
     public GUIHandler(SimplexModule<?> plugin) {
-        register(this, plugin);
+        super(plugin);
     }
 
     @EventHandler(priority = EventPriority.NORMAL)
-    public void invClick(InventoryClickEvent event) {
+    public void invClick(@NotNull InventoryClickEvent event) {
-        if (!(event.getWhoClicked() instanceof Player)) {
+        if (!(event.getWhoClicked() instanceof Player player)) {
             return;
         }
 
-        Player player = (Player) event.getWhoClicked();
         UUID pID = player.getUniqueId();
         UUID invUUID = AbstractGUI.getOpenInvs().get(pID);
 
@@ -38,7 +38,7 @@ public final class GUIHandler extends SimplexListener {
     }
 
     @EventHandler(priority = EventPriority.NORMAL)
-    public void onClose(InventoryCloseEvent event) {
+    public void onClose(@NotNull InventoryCloseEvent event) {
         Player player = (Player) event.getPlayer();
         AbstractGUI.getOpenInvs().remove(player.getUniqueId());
     }

src/main/java/io/github/simplexdev/simplexcore/listener/SimplexListener.java

@@ -1,38 +1,18 @@
 package io.github.simplexdev.simplexcore.listener;
 
-import io.github.simplexdev.simplexcore.SimplexCorePlugin;
 import io.github.simplexdev.simplexcore.module.SimplexModule;
-import io.github.simplexdev.simplexcore.utils.ReflectionTools;
 import org.bukkit.event.Listener;
-
+import org.jetbrains.annotations.NotNull;
-import java.lang.reflect.Constructor;
-import java.lang.reflect.InvocationTargetException;
 
 public abstract class SimplexListener implements Listener {
-    /**
+    protected final SimplexModule<?> plugin;
-     * This will register your listener by its class. This requires your class to have a single constructor which takes no parameters.
-     * This also requires the class in question to extend SimplexListener.
-     *
-     * @param cls The class to register.
-     */
-    public static void registerFromClass(Class<? extends SimplexListener> cls, SimplexModule<?> plugin) {
-        if (!SimplexListener.class.isAssignableFrom(cls)) {
-            SimplexCorePlugin.getInstance().getLogger().severe("You can only register subclasses of SimplexListener with this method.");
-            return;
-        }
 
-        Constructor<? extends SimplexListener> constr = ReflectionTools.getDeclaredConstructor(cls);
+    public SimplexListener(@NotNull SimplexModule<?> plugin) {
-        register(ReflectionTools.initConstructor(constr), plugin);
+        this.plugin = plugin;
+        plugin.getManager().registerEvents(this, plugin);
     }
 
-    /**
+    protected final SimplexModule<?> getPlugin() {
-     * Registers your listener with the server plugin manager.
+        return plugin;
-     *
-     * @param listener The listener instance
-     * @param plugin   Your plugin instance
-     * @param <T>      Type of which extends SimplexListener.
-     */
-    public static <T extends SimplexListener> void register(T listener, SimplexModule<?> plugin) {
-        SimplexCorePlugin.getInstance().getManager().registerEvents(listener, plugin);
     }
 }

src/main/java/io/github/simplexdev/simplexcore/module/ModuleRegistry.java

@@ -3,6 +3,8 @@ package io.github.simplexdev.simplexcore.module;
 import io.github.simplexdev.api.annotations.ReqType;
 import io.github.simplexdev.api.annotations.Requires;
 import io.github.simplexdev.simplexcore.SimplexCorePlugin;
+import org.jetbrains.annotations.Contract;
+import org.jetbrains.annotations.NotNull;
 
 import java.util.HashSet;
 import java.util.Set;
@@ -11,62 +13,19 @@ public final class ModuleRegistry {
     private static final ModuleRegistry instance = new ModuleRegistry();
     private final Set<SimplexModule<?>> modules = new HashSet<>();
 
-    protected ModuleRegistry() {
+    private ModuleRegistry() {
     }
 
-    public static synchronized ModuleRegistry getInstance() {
+    public static ModuleRegistry getInstance() {
         return instance;
     }
 
-    public <T extends SimplexModule<T>> boolean isPaper(T addon) {
+    @Contract(pure = true)
-        try {
+    private boolean checkAnnotation(@NotNull Requires info, ReqType type) {
-            Class.forName(com.destroystokyo.paper.Namespaced.class.getName());
-            return true;
-        } catch (ClassNotFoundException ignored) {
-            addon.stop();
-            SimplexCorePlugin.getInstance().getLogger().severe(addon.getName() + " has been disabled: This module requires Paper!");
-            return false;
-        }
-    }
-
-    public <T extends SimplexModule<T>> boolean isSpigot(T addon) {
-        try {
-            Class.forName(org.spigotmc.WatchdogThread.class.getName());
-            return true;
-        } catch (ClassNotFoundException ignored) {
-            addon.stop();
-            SimplexCorePlugin.getInstance().getLogger().severe(addon.getName() + " has been disabled: This module requires Paper!");
-            return false;
-        }
-    }
-
-    private <T extends SimplexModule<T>> boolean isBungee(T addon) {
-        try {
-            Class.forName(net.md_5.bungee.Util.class.getName());
-            return true;
-        } catch (ClassNotFoundException ignored) {
-            addon.stop();
-            SimplexCorePlugin.getInstance().getLogger().severe(addon.getName() + " has been disabled: This module requires Bungeecord!");
-            return false;
-        }
-    }
-
-    private boolean checkAnnotation(Requires info, ReqType type) {
         return info.value() == type;
     }
 
     public <T extends SimplexModule<T>> void register(T addon) {
-        if (addon.getClass().isAnnotationPresent(Requires.class)) {
-            Requires info = addon.getClass().getDeclaredAnnotation(Requires.class);
-            if (checkAnnotation(info, ReqType.SPIGOT)
-                    && (!isSpigot(addon) || !isPaper(addon))) {
-                return;
-            }
-            if (checkAnnotation(info, ReqType.BUNGEECORD)
-                    && !isBungee(addon)) {
-                return;
-            }
-        }
         getModules().add(addon);
     }
 

src/main/java/io/github/simplexdev/simplexcore/particle/ParticleFactory.java

@@ -11,6 +11,7 @@ import org.bukkit.entity.AreaEffectCloud;
 import org.bukkit.entity.EntityType;
 import org.bukkit.inventory.ItemStack;
 import org.bukkit.potion.PotionEffect;
+import org.jetbrains.annotations.Contract;
 import org.jetbrains.annotations.NotNull;
 import org.jetbrains.annotations.Nullable;
 
@@ -131,7 +132,7 @@ public final class ParticleFactory {
         };
     }
 
-    public void spawnParticleCloud(IParticleEffect effect, Location location) {
+    public void spawnParticleCloud(IParticleEffect effect, @NotNull Location location) {
         World world = location.getWorld();
         if (world == null) return;
         AreaEffectCloud cloud = (AreaEffectCloud) world.spawnEntity(location, EntityType.AREA_EFFECT_CLOUD);
@@ -145,25 +146,27 @@ public final class ParticleFactory {
         cloud.setPersistent(true);
     }
 
-    public void spawnDirectionalParticle(Particle particle, Location location, double xDirection, double yDirection, double zDirection) {
+    public void spawnDirectionalParticle(Particle particle, @NotNull Location location, double xDirection, double yDirection, double zDirection) {
         World world = location.getWorld();
         if (world == null) return;
 
         world.spawnParticle(particle, location, 0, xDirection, yDirection, zDirection);
     }
 
-    public void spawnRedstoneParticle(Location location, int count, Particle.DustOptions options) {
+    public void spawnRedstoneParticle(@NotNull Location location, int count, Particle.DustOptions options) {
         World world = location.getWorld();
         if (world == null) return;
 
         world.spawnParticle(Particle.REDSTONE, location, count, options);
     }
 
-    public static Particle.DustOptions options(IParticleEffect effect, float size) {
+    @Contract("_, _ -> new")
+    public static Particle.@NotNull DustOptions options(@NotNull IParticleEffect effect, float size) {
         return new Particle.DustOptions(effect.getParticleColor(), size);
     }
 
-    public static Particle.DustOptions options(int red, int green, int blue, float size) {
+    @Contract("_, _, _, _ -> new")
+    public static Particle.@NotNull DustOptions options(int red, int green, int blue, float size) {
         if (red > 255) {
             red = 255;
         }
@@ -176,7 +179,7 @@ public final class ParticleFactory {
         return new Particle.DustOptions(Color.fromRGB(red, green, blue), size);
     }
 
-    public void spawnParticle(IParticleEffect effect, Location location, int count) {
+    public void spawnParticle(IParticleEffect effect, @NotNull Location location, int count) {
         World world = location.getWorld();
         if (world == null) return;
 
@@ -220,7 +223,7 @@ public final class ParticleFactory {
         }
     }
 
-    public final SimplexModule<?> getPlugin() {
+    public SimplexModule<?> getPlugin() {
         return plugin;
     }
 

src/main/java/io/github/simplexdev/simplexcore/potion/PotionEffectFactory.java

@@ -36,7 +36,7 @@ public final class PotionEffectFactory {
      * @param effects The {@link PotionEffectType}(s) you want to be included.
      * @return A new compound effect.
      */
-    public static ICompoundEffect compoundEffect(SimplexModule<?> plugin, String name, int duration, int amplifier, PotionEffectType... effects) {
+    public static @NotNull ICompoundEffect compoundEffect(SimplexModule<?> plugin, String name, int duration, int amplifier, PotionEffectType... effects) {
         List<PotionEffect> list = new ArrayList<>();
 
         Utilities.forEach(effects, effect -> {
@@ -83,7 +83,7 @@ public final class PotionEffectFactory {
      * @param amplifier How strong the potion is.
      * @return A new {@link PotionEffect}.
      */
-    public static PotionEffect potionEffect(PotionEffectType type, int duration, int amplifier) {
+    public static @NotNull PotionEffect potionEffect(@NotNull PotionEffectType type, int duration, int amplifier) {
         return type.createEffect(duration, amplifier);
     }
 
@@ -91,7 +91,7 @@ public final class PotionEffectFactory {
      * Applies the compound effect to the defined player.
      * @param effect The {@link ICompoundEffect} to apply.
      */
-    public void applyCompoundEffect(ICompoundEffect effect) {
+    public void applyCompoundEffect(@NotNull ICompoundEffect effect) {
         effect.getEffects().forEach(player::addPotionEffect);
         map.put(player, effect);
     }
@@ -99,7 +99,7 @@ public final class PotionEffectFactory {
     /**
      * Checks if a player currently has a compound effect.
      * @param effect The {@link ICompoundEffect} to look for
-     * @return Whether or not the player has the compound effect.
+     * @return Whether the player has the compound effect.
      */
     public boolean hasPotionEffect(ICompoundEffect effect) {
         return (map.containsKey(player) && map.get(player).equals(effect));

src/main/java/io/github/simplexdev/simplexcore/sql/Database.java

@@ -1,5 +1,7 @@
 package io.github.simplexdev.simplexcore.sql;
 
+import org.jetbrains.annotations.Nullable;
+
 import java.sql.PreparedStatement;
 import java.sql.ResultSet;
 import java.sql.SQLException;
@@ -75,7 +77,7 @@ public class Database {
         return false;
     }
 
-    public static String getString(String table, String column, String gate, Object gate_value) {
+    public static @Nullable String getString(String table, String column, String gate, Object gate_value) {
         PreparedStatement ps;
         try {
             ps = MySQL.getConnection().prepareStatement("SELECT ? FROM ? WHERE ?=?");
@@ -119,7 +121,7 @@ public class Database {
         return 0;
     }
 
-    public static Double getDouble(String table, String column, String gate, Object gate_value) {
+    public static @Nullable Double getDouble(String table, String column, String gate, Object gate_value) {
         PreparedStatement ps;
         try {
             ps = MySQL.getConnection().prepareStatement("SELECT ? FROM ? WHERE ?=?");
@@ -185,7 +187,7 @@ public class Database {
         return 0;
     }
 
-    public static Object get(String table, String column, String gate, Object gate_value) {
+    public static @Nullable Object get(String table, String column, String gate, Object gate_value) {
         PreparedStatement ps;
         try {
             ps = MySQL.getConnection().prepareStatement("SELECT ? FROM ? WHERE ?=?");

src/main/java/io/github/simplexdev/simplexcore/utils/ReflectionTools.java

@@ -13,18 +13,19 @@ import java.lang.reflect.Method;
 import java.util.Set;
 
 public final class ReflectionTools {
+    @Contract("_ -> new")
     @NotNull
-    public static Reflections reflect(Class<?> loadFrom) {
+    public static Reflections reflect(@NotNull Class<?> loadFrom) {
         return new Reflections(loadFrom.getName());
     }
 
     @NotNull
-    public static Set<Class<?>> getAnnotatedClasses(Class<?> loadFrom, Class<? extends Annotation> annotation) {
+    public static Set<Class<?>> getAnnotatedClasses(@NotNull Class<?> loadFrom, Class<? extends Annotation> annotation) {
         return new Reflections(loadFrom.getName()).getTypesAnnotatedWith(annotation);
     }
 
     @Nullable
-    public static <T> Field getField(Class<T> cls, String name) {
+    public static <T> Field getField(@NotNull Class<T> cls, String name) {
         try {
             return asAccessible(cls.getField(name));
         } catch (NoSuchFieldException ignored) {
@@ -33,7 +34,7 @@ public final class ReflectionTools {
     }
 
     @Nullable
-    public static <T> Field getDeclaredField(Class<T> cls, String name) {
+    public static <T> Field getDeclaredField(@NotNull Class<T> cls, String name) {
         try {
             return asAccessible(cls.getDeclaredField(name));
         } catch (ReflectiveOperationException ignored) {
@@ -42,7 +43,7 @@ public final class ReflectionTools {
     }
 
     @Nullable
-    public static <T> Constructor<T> getConstructor(Class<T> cls, Class<?>... initializers) {
+    public static <T> Constructor<T> getConstructor(@NotNull Class<T> cls, Class<?>... initializers) {
         try {
             return asAccessible(cls.getConstructor(initializers));
         } catch (NoSuchMethodException ignored) {
@@ -51,7 +52,7 @@ public final class ReflectionTools {
     }
 
     @Nullable
-    public static <T> Constructor<T> getDeclaredConstructor(Class<T> cls, Class<?>... initializers) {
+    public static <T> Constructor<T> getDeclaredConstructor(@NotNull Class<T> cls, Class<?>... initializers) {
         try {
             return asAccessible(cls.getDeclaredConstructor(initializers));
         } catch (NoSuchMethodException ignored) {
@@ -60,7 +61,7 @@ public final class ReflectionTools {
     }
 
     @Nullable
-    public static <T> T initConstructor(Constructor<? extends T> constructor, Object... initializers) {
+    public static <T> T initConstructor(@NotNull Constructor<? extends T> constructor, Object... initializers) {
         try {
             return constructor.newInstance(initializers);
         } catch (ReflectiveOperationException e) {
@@ -69,7 +70,7 @@ public final class ReflectionTools {
     }
 
     @Nullable
-    public static <T> Method getMethod(Class<T> clazz, String name, Class<?>... params) {
+    public static <T> Method getMethod(@NotNull Class<T> clazz, String name, Class<?>... params) {
         try {
             return asAccessible(clazz.getMethod(name, params));
         } catch (NoSuchMethodException e) {
@@ -78,7 +79,7 @@ public final class ReflectionTools {
     }
 
     @Nullable
-    public static <T> Method getDeclaredMethod(Class<T> clazz, String name, Class<?>... params) {
+    public static <T> Method getDeclaredMethod(@NotNull Class<T> clazz, String name, Class<?>... params) {
         try {
             return asAccessible(clazz.getDeclaredMethod(name, params));
         } catch (ReflectiveOperationException ignored) {
@@ -88,7 +89,7 @@ public final class ReflectionTools {
 
     @NotNull
     @Contract(pure = true)
-    public static <T extends AccessibleObject> T asAccessible(T object) {
+    public static <T extends AccessibleObject> T asAccessible(@NotNull T object) {
         object.setAccessible(true);
         return object;
     }

src/main/java/io/github/simplexdev/simplexcore/utils/Trio.java

@@ -2,6 +2,7 @@ package io.github.simplexdev.simplexcore.utils;
 
 import org.apache.commons.lang.builder.EqualsBuilder;
 import org.apache.commons.lang.builder.HashCodeBuilder;
+import org.jetbrains.annotations.NotNull;
 
 public final class Trio<A, B, C> {
     private final A primary;
@@ -52,7 +53,7 @@ public final class Trio<A, B, C> {
     }
 
     @Override
-    public String toString() {
+    public @NotNull String toString() {
         return getPrimary().toString() +
                 "\n" +
                 getSecondary().toString() +

src/main/java/io/github/simplexdev/simplexcore/utils/Utilities.java

@@ -4,12 +4,15 @@ import io.github.simplexdev.api.func.Path;
 import io.github.simplexdev.simplexcore.SimplexCorePlugin;
 import io.github.simplexdev.simplexcore.ban.BanType;
 import org.bukkit.Bukkit;
+import org.jetbrains.annotations.Contract;
+import org.jetbrains.annotations.NotNull;
 
 import java.util.ArrayList;
 import java.util.Arrays;
 import java.util.List;
 import java.util.SplittableRandom;
 import java.util.function.Consumer;
+import java.util.stream.IntStream;
 import java.util.stream.Stream;
 
 public final class Utilities {
@@ -36,17 +39,18 @@ public final class Utilities {
         throw new AssertionError();
     }
 
-    public static <T> void forEach(T[] array, Consumer<? super T> action) {
+    public static <T> void forEach(T @NotNull [] array, Consumer<? super T> action) {
         for (T obj : array) {
             action.accept(obj);
         }
     }
 
-    public static <T> Stream<T> stream(T[] array) {
+    @Contract(pure = true)
+    public static <T> @NotNull Stream<T> stream(T[] array) {
         return Arrays.stream(array);
     }
 
-    public static String generateBanId(BanType type) {
+    public static @NotNull String generateBanId(@NotNull BanType type) {
         final String charList = "AaBbCcDdEeFfGgHhIiJjKkLlMmNnOoPpQqRrSsTtUuVvWwXxYyZz";
         final String numList = "0123456789";
         final int length = charList.length();
@@ -56,10 +60,10 @@ public final class Utilities {
 
         sb.append(type.getPrefix());
 
-        for (int x = 0; x < 4; x++) {
+        IntStream.range(0, 4).forEach(x -> {
             sb.append(charList.charAt(random.nextInt(length - 1)));
             sb.append(numList.charAt(numbers.nextInt(lng - 1)));
-        }
+        });
 
         sb.setCharAt(2, capitalize(sb.charAt(2)));
         return sb.toString();
@@ -74,15 +78,17 @@ public final class Utilities {
         return temp.charAt(0);
     }
 
-    public static Path pathway(String pathway) {
+    @Contract(pure = true)
+    public static @NotNull Path pathway(String pathway) {
         return () -> pathway;
     }
 
-    public static String getNMSVersion() {
+    public static @NotNull String getNMSVersion() {
         return Bukkit.getServer().getClass().getPackage().getName().substring(23).replaceFirst("v", "");
     }
 
-    public static String[] formatVersion(String version) {
+    @Contract(pure = true)
+    public static String @NotNull [] formatVersion(@NotNull String version) {
         return (version).split(":");
     }