Add @NotNull

Add @NotNull annotations to clarify that these parameters and return values must never be null, improving code safety and clarity.

Author: Baktus79

src/main/java/no/vestlandetmc/BanFromClaim/commands/BfcAllCommand.java

@@ -9,11 +9,12 @@
 import org.bukkit.command.CommandExecutor;
 import org.bukkit.command.CommandSender;
 import org.bukkit.entity.Player;
+import org.jetbrains.annotations.NotNull;
 
 public class BfcAllCommand implements CommandExecutor {
 
 	@Override
-	public boolean onCommand(CommandSender sender, Command command, String label, String[] args) {
+	public boolean onCommand(@NotNull CommandSender sender, @NotNull Command command, @NotNull String label, @NotNull String[] args) {
 		if (!(sender instanceof Player player)) {
 			MessageHandler.sendConsole("&cThis command can only be used in-game.");
 			return true;

src/main/java/no/vestlandetmc/BanFromClaim/commands/BfcCommand.java

@@ -14,12 +14,13 @@
 import org.bukkit.command.CommandExecutor;
 import org.bukkit.command.CommandSender;
 import org.bukkit.entity.Player;
+import org.jetbrains.annotations.NotNull;
 
 public class BfcCommand implements CommandExecutor {
 
 	@SuppressWarnings("deprecation")
 	@Override
-	public boolean onCommand(CommandSender sender, Command command, String label, String[] args) {
+	public boolean onCommand(@NotNull CommandSender sender, @NotNull Command command, @NotNull String label, @NotNull String[] args) {
 		if (!(sender instanceof Player player)) {
 			MessageHandler.sendConsole("&cThis command can only be used in-game.");
 			return true;

src/main/java/no/vestlandetmc/BanFromClaim/commands/BfclistCommand.java

@@ -11,6 +11,7 @@
 import org.bukkit.command.CommandExecutor;
 import org.bukkit.command.CommandSender;
 import org.bukkit.entity.Player;
+import org.jetbrains.annotations.NotNull;
 
 import java.util.List;
 import java.util.UUID;
@@ -22,7 +23,7 @@ public class BfclistCommand implements CommandExecutor {
 	int number = 1;
 
 	@Override
-	public boolean onCommand(CommandSender sender, Command command, String label, String[] args) {
+	public boolean onCommand(@NotNull CommandSender sender, @NotNull Command command, @NotNull String label, @NotNull String[] args) {
 		if (!(sender instanceof Player player)) {
 			MessageHandler.sendConsole("&cThis command can only be used in-game.");
 			return true;

src/main/java/no/vestlandetmc/BanFromClaim/commands/KfcCommand.java

@@ -12,11 +12,12 @@
 import org.bukkit.command.CommandExecutor;
 import org.bukkit.command.CommandSender;
 import org.bukkit.entity.Player;
+import org.jetbrains.annotations.NotNull;
 
 public class KfcCommand implements CommandExecutor {
 
 	@Override
-	public boolean onCommand(CommandSender sender, Command command, String label, String[] args) {
+	public boolean onCommand(@NotNull CommandSender sender, @NotNull Command command, @NotNull String label, @NotNull String[] args) {
 		if (!(sender instanceof Player player)) {
 			MessageHandler.sendConsole("&cThis command can only be used in-game.");
 			return true;

src/main/java/no/vestlandetmc/BanFromClaim/commands/SafeSpot.java

@@ -6,11 +6,12 @@
 import org.bukkit.command.CommandExecutor;
 import org.bukkit.command.CommandSender;
 import org.bukkit.entity.Player;
+import org.jetbrains.annotations.NotNull;
 
 public class SafeSpot implements CommandExecutor {
 
 	@Override
-	public boolean onCommand(CommandSender sender, Command command, String label, String[] args) {
+	public boolean onCommand(@NotNull CommandSender sender, @NotNull Command command, @NotNull String label, @NotNull String[] args) {
 		if (!(sender instanceof Player player)) {
 			MessageHandler.sendConsole("&cYou cannot use this command from the console.");
 			return true;

src/main/java/no/vestlandetmc/BanFromClaim/commands/UnbfcCommand.java

@@ -11,14 +11,15 @@
 import org.bukkit.command.CommandExecutor;
 import org.bukkit.command.CommandSender;
 import org.bukkit.entity.Player;
+import org.jetbrains.annotations.NotNull;
 
 import java.util.List;
 import java.util.UUID;
 
 public class UnbfcCommand implements CommandExecutor {
 
 	@Override
-	public boolean onCommand(CommandSender sender, Command command, String label, String[] args) {
+	public boolean onCommand(@NotNull CommandSender sender, @NotNull Command command, @NotNull String label, @NotNull String[] args) {
 		if (!(sender instanceof Player player)) {
 			MessageHandler.sendConsole("&cThis command can only be used in-game.");
 			return true;