Move API checks into their own class

src/main/java/com/gmail/nossr50/mcMMO.java

@@ -119,7 +119,7 @@ public class mcMMO extends JavaPlugin {
             databaseManager = DatabaseManagerFactory.getDatabaseManager();
 
             //Check for the newer API and tell them what to do if its missing
-            checkForOutdatedAPI();
+            CompatibilityCheck.checkForOutdatedAPI(serverAPIOutdated, getServerSoftwareStr());
 
             if (serverAPIOutdated) {
                 Bukkit
@@ -247,21 +247,6 @@ public class mcMMO extends JavaPlugin {
         return playerLevelUtils;
     }
 
-    /**
-     * Uses reflection to check for incompatible server software
-     */
-    private void checkForOutdatedAPI() {
-        try {
-            Class<?> checkForClass = Class.forName("org.bukkit.event.block.BlockDropItemEvent");
-            Method newerAPIMethod = checkForClass.getMethod("getItems");
-            Class<?> checkForClassBaseComponent = Class.forName("net.md_5.bungee.api.chat.BaseComponent");
-        } catch (ClassNotFoundException | NoSuchMethodException e) {
-            serverAPIOutdated = true;
-            String software = getServerSoftwareStr();
-            getLogger().severe("You are running an older version of " + software + " that is not compatible with mcMMO, update your server software!");
-        }
-    }
-
     /**
      * Returns a ServerSoftwareType based on version strings
      * Custom software is returned as CRAFTBUKKIT

src/main/java/com/gmail/nossr50/util/CompatibilityCheck.java

@@ -0,0 +1,21 @@
+package com.gmail.nossr50.util;
+
+import com.gmail.nossr50.mcMMO;
+
+import java.lang.reflect.Method;
+
+public class CompatibilityCheck {
+    /**
+     * Uses reflection to check for incompatible server software
+     */
+    public static void checkForOutdatedAPI(boolean serverAPIOutdated, String software) {
+        try {
+            Class<?> checkForClass = Class.forName("org.bukkit.event.block.BlockDropItemEvent");
+            Method newerAPIMethod = checkForClass.getMethod("getItems");
+            Class<?> checkForClassBaseComponent = Class.forName("net.md_5.bungee.api.chat.BaseComponent");
+        } catch (ClassNotFoundException | NoSuchMethodException e) {
+            serverAPIOutdated = true;
+            mcMMO.p.getLogger().severe("You are running an older version of " + software + " that is not compatible with mcMMO, update your server software!");
+        }
+    }
+}