Refactored out duplicate db interface.

src/engine/objects/PowerReq.java

@@ -9,11 +9,14 @@
 
 package engine.objects;
 
+import engine.gameManager.DbManager;
 import engine.gameManager.PowersManager;
 import engine.powers.PowersBase;
 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;
@@ -87,15 +90,18 @@ public class PowerReq extends AbstractGameObject implements Comparable<PowerReq>
     }
 
     public static ConcurrentHashMap<Integer, ArrayList<PowerReq>> fillRunePowers() {
+
         PowerReq.runePowers = new ConcurrentHashMap<>(MBServerStatics.CHM_INIT_CAP, MBServerStatics.CHM_LOAD, MBServerStatics.CHM_THREAD_LOW);
-        PreparedStatementShared ps = null;
-        try {
-            ps = prepareStatement("SELECT * FROM static_power_powerrequirement");
-            ResultSet rs = ps.executeQuery();
+
+        try (Connection connection = DbManager.getConnection();
+             PreparedStatement preparedStatement = connection.prepareStatement("SELECT * FROM static_power_powerrequirement")) {
+
+            ResultSet rs = preparedStatement.executeQuery();
+
             if (PowerReq.runePowers.size() > 0) {
-                rs.close();
                 return PowerReq.runePowers;
             }
+
             while (rs.next()) {
                 ArrayList<PowerReq> runePR = null;
                 int runeID = rs.getInt("runeID");
@@ -130,9 +136,8 @@ public class PowerReq extends AbstractGameObject implements Comparable<PowerReq>
             }
         } catch (SQLException e) {
             Logger.error("SQL Error number: " + e.getErrorCode(), e);
-        } finally {
-            ps.release();
         }
+
         return PowerReq.runePowers;
     }