init

src/main/java/org/twipnetwork/hidePlugins/HidePlugins.java

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+package org.twipnetwork.hidePlugins;
+
+import org.bukkit.ChatColor;
+import org.bukkit.configuration.file.FileConfiguration;
+import org.bukkit.event.EventHandler;
+import org.bukkit.event.Listener;
+import org.bukkit.event.player.PlayerCommandPreprocessEvent;
+import org.bukkit.plugin.java.JavaPlugin;
+
+import java.util.Arrays;
+import java.util.List;
+
+public final class HidePlugins extends JavaPlugin implements Listener {
+
+    public static HidePlugins plugin;
+    private List<String> disabledCmds;
+    private String blockMsg;
+
+    @Override
+    public void onEnable() {
+        plugin = this;
+
+        saveDefaultConfig();
+        FileConfiguration config = getConfig();
+
+        blockMsg = ChatColor.translateAlternateColorCodes('&', config.getString("blockMsg", "&cYou are not allowed to use this command."));
+
+        disabledCmds = Arrays.asList(
+                "/pl", "/bukkit:pl", "/plugins", "/bukkit:plugins", "/ver", "/bukkit:ver", "/version", "/bukkit:version",
+                "/?", "/bukkit:?", "/help", "/bukkit:help", "/about", "/bukkit:about", "/icanhasbukkit", "/bukkit:icanhasbukkit"
+        );
+
+        this.getServer().getPluginManager().registerEvents(this, this);
+    }
+
+    @EventHandler
+    public void onDisabledCommandExecution(PlayerCommandPreprocessEvent event) {
+        if (!event.getPlayer().hasPermission("hide_plugins.bypass")) {
+            String message = event.getMessage();
+            String[] array = message.split(" ");
+
+            if (disabledCmds.contains(array[0].toLowerCase())) {
+                event.getPlayer().sendMessage(blockMsg);
+                event.setCancelled(true);
+            }
+        }
+    }
+}

src/main/resources/config.yml

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+# This message will be shown when a player tries to execute a blocked command.
+# You can use color codes with '&' (e.g., &c for red).
+blockMsg: "&cYou are not allowed to use this command."

src/main/resources/paper-plugin.yml

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+name: HidePlugins
+version: '1.0-1.21'
+main: org.twipnetwork.hidePlugins.HidePlugins
+api-version: '1.21'
+authors: [ Akis ]
+description: Hides plugins from players