Shields can't be augmented, thanks devo.

Also little optimisations.

L2_GameServer/java/net/sf/l2j/gameserver/network/clientpackets/AbstractRefinePacket.java

@@ -27,7 +27,6 @@ import net.sf.l2j.gameserver.network.serverpackets.SystemMessage;
 import net.sf.l2j.gameserver.templates.item.L2Armor;
 import net.sf.l2j.gameserver.templates.item.L2Item;
 import net.sf.l2j.gameserver.templates.item.L2Weapon;
-import net.sf.l2j.gameserver.templates.item.L2WeaponType;
 
 public abstract class AbstractRefinePacket extends L2GameClientPacket
 {
@@ -257,15 +256,29 @@ public abstract class AbstractRefinePacket extends L2GameClientPacket
 			return false;
 		if (item.getItem().getCrystalType() < L2Item.CRYSTAL_C)
 			return false;
-		if (item.getItem().getItemType() == L2WeaponType.ROD)
-			return false;
 
 		// Source item can be equipped or in inventory
-		if (item.getLocation() != L2ItemInstance.ItemLocation.INVENTORY
-				&& item.getLocation() != L2ItemInstance.ItemLocation.PAPERDOLL)
-			return false;
+		switch (item.getLocation())
+		{
+			case INVENTORY:
+			case PAPERDOLL:
+				break;
+			default:
+				return false;
+		}
 
-		if (item.getItem() instanceof L2Armor)
+		if (item.getItem() instanceof L2Weapon)
+		{
+			switch (((L2Weapon)item.getItem()).getItemType())
+			{
+				case NONE: //shields
+				case ROD:
+					return false;
+				default:
+					break;
+			}
+		}
+		else if (item.getItem() instanceof L2Armor)
 		{
 			// only accessories can be augmented
 			switch (item.getItem().getBodyPart())
@@ -278,6 +291,8 @@ public abstract class AbstractRefinePacket extends L2GameClientPacket
 					return false;
 			}
 		}
+		else
+			return false; // neither weapon nor armor ?
 
 		// blacklist check
 		if (Arrays.binarySearch(Config.AUGMENTATION_BLACKLIST, item.getItemId()) >= 0)