Added support for MC version up to 1.21.4

src/main/java/hu/ditservices/STPlugin.java

@@ -99,9 +99,9 @@ public final class STPlugin extends JavaPlugin implements CommandExecutor, Liste
         try {
             this.ServerStartTime = ManagementFactory.getRuntimeMXBean().getStartTime();
             if (Version.ServerVersion.isCurrentLower(Version.ServerVersion.v1_12_R1) ||
-                    Version.ServerVersion.isCurrentHigher(Version.ServerVersion.v1_20_R2))
+                    Version.ServerVersion.isCurrentHigher(Version.ServerVersion.v1_21_4_R1))
             {
-                throw new Exception("The server version is not supported! Update to a version between 1.12 - 1.20.2 to run this plugin.");
+                throw new Exception("The server version is not supported! Update to a version between 1.12 - 1.21.4 to run this plugin.");
             }
 
             if (this.reload()) {

src/main/java/hu/ditservices/utils/Version.java

@@ -28,7 +28,16 @@ public class Version {
         v1_19_R1,
         v1_19_R2,
         v1_20_R1,
-        v1_20_R2;
+        v1_20_R2,
+        v1_20_3_R1,
+        v1_20_4_R1,
+        v1_20_5_R1,
+        v1_20_6_R1,
+        v1_21_R1,
+        v1_21_1_R1,
+        v1_21_2_R1,
+        v1_21_3_R1,
+        v1_21_4_R1;
 
         private int value;
 
@@ -59,11 +68,33 @@ public class Version {
             return current;
         }
 
-        public static String[] getArrayVersion() {
+        /*public static String[] getArrayVersion() {
             if (arrayVersion == null) {
                 arrayVersion = org.bukkit.Bukkit.getServer().getClass().getPackage().getName().split("\\.");
             }
 
+            return arrayVersion;
+        }*/
+        public static String[] getArrayVersion() {
+            if (arrayVersion == null) {
+                String packageName = org.bukkit.Bukkit.getServer().getClass().getPackage().getName();
+                String[] splitPackageName = packageName.split("\\.");
+
+                // Check if the splitPackageName length is more than 3
+                if (splitPackageName.length > 3) {
+                    arrayVersion = new String[] {splitPackageName[3]};
+                } else {
+                    // Handle the case for newer versions
+                    String version = "UNKNOWN";
+                    try {
+                        version = org.bukkit.Bukkit.getServer().getVersion().split("\\(MC: ")[1].split("\\)")[0];
+                    } catch (Exception e) {
+                        e.printStackTrace();
+                    }
+                    arrayVersion = new String[] {"v" + version.replace('.', '_') + "_R1"};
+                }
+            }
+
             return arrayVersion;
         }