fix build placeholders

Author: iGabyTM

src/main/java/com/extendedclip/papi/expansion/server/ServerUtils.java

@@ -2,45 +2,50 @@
 
 import org.bukkit.Bukkit;
 
+import java.util.LinkedHashMap;
+import java.util.Map;
+
 public final class ServerUtils {
 
     public static final String VERSION = Bukkit.getBukkitVersion().split("-")[0];
     public static final String BUILD;
 
     static {
+        boolean isPaper = false;
+
+        try {
+            Class.forName("com.destroystokyo.paper.PaperConfig");
+            isPaper = true;
+        } catch (ClassNotFoundException ignored) { }
+
         String[] buildParts = Bukkit.getVersion().split("-");
 
         if (buildParts.length >= 3) {
-            BUILD = buildParts[2];
+            BUILD = isPaper ? buildParts[2] : buildParts[0];
         } else {
             BUILD = "UNKNOWN";
         }
     }
 
     private ServerUtils() { }
 
+    @SuppressWarnings("SpellCheckingInspection")
     public static String getServerVariant() {
-        try {
-            Class.forName("net.pl3x.purpur.PurpurConfig");
-            return "Purpur";
-        } catch (ClassNotFoundException e) {
+        final Map<String, String> variants = new LinkedHashMap<>();
+        variants.put("Purpur", "net.pl3x.purpur.PurpurConfig");
+        variants.put("Airplane", "gg.airplane.AirplaneConfig");
+        variants.put("Tuinity", "com.tuinity.tuinity.config.TuinityConfig");
+        variants.put("Paper", "com.destroystokyo.paper.PaperConfig");
+        variants.put("Spigot", "org.spigotmc.SpigotConfig");
+
+        for (Map.Entry<String, String> variant : variants.entrySet()) {
             try {
-                Class.forName("com.tuinity.tuinity.config.TuinityConfig");
-                return "Tuinity";
-            } catch (ClassNotFoundException e1) {
-                try {
-                    Class.forName("com.destroystokyo.paper.PaperConfig");
-                    return "Paper";
-                } catch (ClassNotFoundException e2) {
-                    try {
-                        Class.forName("org.spigotmc.SpigotConfig");
-                        return "Spigot";
-                    } catch (ClassNotFoundException e3) {
-                        return "Unknown";
-                    }
-                }
-            }
+                Class.forName(variant.getValue());
+                return variant.getKey();
+            } catch (ClassNotFoundException ignored) { }
         }
+
+        return "Unknown";
     }
 
 }