Use weaker collection types

src/main/java/appeng/tile/crafting/TileMolecularAssembler.java

@@ -20,7 +20,7 @@ package appeng.tile.crafting;
 
 
 import java.io.IOException;
-import java.util.ArrayList;
+import java.util.List;
 
 import io.netty.buffer.ByteBuf;
 
@@ -398,7 +398,7 @@ public class TileMolecularAssembler extends AENetworkInvTile implements IUpgrade
 	}
 
 	@Override
-	public void getDrops( World w, int x, int y, int z, ArrayList<ItemStack> drops )
+	public void getDrops( World w, int x, int y, int z, List<ItemStack> drops )
 	{
 		super.getDrops( w, x, y, z, drops );