Annotate onPlaybackFailed Exception parameter as NotNull

Author: iscle

api/src/main/java/xyz/gianlu/librespot/api/handlers/EventsHandler.java

@@ -91,7 +91,7 @@ public void onPlaybackResumed(@NotNull Player player, long trackTime) {
     }
 
     @Override
-    public void onPlaybackFailed(@NotNull Player player, Exception e) {
+    public void onPlaybackFailed(@NotNull Player player, @NotNull Exception e) {
         JsonObject obj = new JsonObject();
         obj.addProperty("event", "playbackFailed");
         obj.addProperty("exception", e.getMessage());

player/src/main/java/xyz/gianlu/librespot/player/Player.java

@@ -872,7 +872,7 @@ public interface EventsListener {
 
         void onPlaybackResumed(@NotNull Player player, long trackTime);
 
-        void onPlaybackFailed(@NotNull Player player, Exception e);
+        void onPlaybackFailed(@NotNull Player player, @NotNull Exception e);
 
         void onTrackSeeked(@NotNull Player player, long trackTime);
 
@@ -1005,7 +1005,7 @@ public void onPlaybackResumed(@NotNull Player player, long trackTime) {
                     }
 
                     @Override
-                    public void onPlaybackFailed(@NotNull Player player, Exception e) {
+                    public void onPlaybackFailed(@NotNull Player player, @NotNull Exception e) {
                     }
 
                     @Override
@@ -1082,7 +1082,7 @@ void playbackResumed() {
                 executorService.execute(() -> l.onPlaybackResumed(Player.this, trackTime));
         }
 
-        void playbackFailed(Exception ex) {
+        void playbackFailed(@NotNull Exception ex) {
             for (EventsListener l : new ArrayList<>(listeners))
                 executorService.execute(() -> l.onPlaybackFailed(Player.this, ex));
         }

player/src/main/java/xyz/gianlu/librespot/player/ShellEvents.java

@@ -89,7 +89,7 @@ public void onPlaybackResumed(@NotNull Player player, long trackTime) {
     }
 
     @Override
-    public void onPlaybackFailed(@NotNull Player player, Exception e) {
+    public void onPlaybackFailed(@NotNull Player player, @NotNull Exception e) {
         exec(conf.onPlaybackFailed, "EXCEPTION=" + e.getClass().getCanonicalName(), "MESSAGE=" + e.getMessage());
     }