v0.2.2: corrected casting errors in javac compiler

src/com/shatteredpixel/shatteredpixeldungeon/items/Heap.java

@@ -341,7 +341,7 @@ public class Heap implements Bundlable {
 	public void restoreFromBundle( Bundle bundle ) {
 		pos = bundle.getInt( POS );
 		type = Type.valueOf( bundle.getString( TYPE ) );
-		items = new LinkedList<Item>( (Collection<? extends Item>) bundle.getCollection( ITEMS ) );
+        items = new LinkedList<Item>( (Collection<Item>) ((Collection<?>) bundle.getCollection( ITEMS )) );
         items.removeAll(Collections.singleton(null));
 	}
 

src/com/shatteredpixel/shatteredpixeldungeon/levels/RegularLevel.java

@@ -690,7 +690,7 @@ public abstract class RegularLevel extends Level {
 	public void restoreFromBundle( Bundle bundle ) {
 		super.restoreFromBundle( bundle );
 
-		rooms = new HashSet<Room>( (Collection<? extends Room>) bundle.getCollection( "rooms" ) );
+        rooms = new HashSet<Room>( (Collection<Room>) ((Collection<?>) bundle.getCollection( "rooms" )) );
 		for (Room r : rooms) {
 			if (r.type == Type.WEAK_FLOOR) {
 				weakFloorCreated = true;