Fixed NullPointerException in FeedMedia

src/de/danoeh/antennapod/feed/FeedMedia.java

@@ -401,7 +401,9 @@ public class FeedMedia extends FeedFile implements Playable {
     @Override
     public String getImageLoaderCacheKey() {
         String out;
-        if (item.hasItemImageDownloaded()) {
+        if (item == null) {
+            return null;
+        } else if (item.hasItemImageDownloaded()) {
             out = item.getImageLoaderCacheKey();
         } else {
             out = new Playable.DefaultPlayableImageLoader(this)

src/de/danoeh/antennapod/service/playback/PlaybackServiceMediaPlayer.java

@@ -126,6 +126,7 @@ public class PlaybackServiceMediaPlayer {
                 try {
                     playMediaObject(playable, false, stream, startWhenPrepared, prepareImmediately);
                 } catch (RuntimeException e) {
+                    e.printStackTrace();
                     throw e;
                 } finally {
                     playerLock.unlock();