Refactored out duplicate db interface.

src/engine/objects/PowerGrant.java

@@ -9,9 +9,12 @@
 
 package engine.objects;
 
+import engine.gameManager.DbManager;
 import engine.server.MBServerStatics;
 import org.pmw.tinylog.Logger;
 
+import java.sql.Connection;
+import java.sql.PreparedStatement;
 import java.sql.ResultSet;
 import java.sql.SQLException;
 import java.util.ArrayList;
@@ -86,18 +89,26 @@ public class PowerGrant extends AbstractGameObject {
     }
 
     public static void fillGrantedPowers() {
+
         PowerGrant.grantedPowers = new ConcurrentHashMap<>(MBServerStatics.CHM_INIT_CAP, MBServerStatics.CHM_LOAD, MBServerStatics.CHM_THREAD_LOW);
-        PreparedStatementShared ps = null;
-        try {
-            ps = prepareStatement("SELECT * FROM static_power_powergrant");
-            ResultSet rs = ps.executeQuery();
+
+        try (Connection connection = DbManager.getConnection();
+             PreparedStatement preparedStatement = connection.prepareStatement("SELECT * FROM static_power_powergrant")) {
+
+
+            ResultSet rs = preparedStatement.executeQuery();
+
             if (PowerGrant.grantedPowers.size() > 0) {
                 rs.close();
                 return;
             }
+
             while (rs.next()) {
+
                 int token = rs.getInt("powerToken");
-                PowerGrant pg = null;
+
+                PowerGrant pg;
+
                 if (PowerGrant.grantedPowers.containsKey(token)) {
                     pg = PowerGrant.grantedPowers.get(token);
                     pg.addRuneGrant(rs.getInt("runeID"), rs.getShort("grantAmount"));
@@ -109,16 +120,9 @@ public class PowerGrant extends AbstractGameObject {
             rs.close();
         } catch (SQLException e) {
             Logger.error("SQL Error number: " + e.getErrorCode(), e);
-        } finally {
-            ps.release();
         }
     }
 
-    public ConcurrentHashMap<Integer, Short> getRuneGrants() {
-        return this.runeGrants;
-    }
-
-
     /*
      * Database
      */