From f7e2cdbbbb24075ca1f117cb63e7a9a7efe34972 Mon Sep 17 00:00:00 2001
From: eguven <eguven@google.com>
Date: Tue, 3 Apr 2018 03:32:24 -0700
Subject: [PATCH] Add missing synchronized keywords and assertions

applyContentMetadataMutations and getContentMetadata methods suppossed to be synchronized and assert the instance isn't released.

-------------
Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=191419637
---
 .../android/exoplayer2/upstream/cache/SimpleCache.java    | 8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)

diff --git a/library/core/src/main/java/com/google/android/exoplayer2/upstream/cache/SimpleCache.java b/library/core/src/main/java/com/google/android/exoplayer2/upstream/cache/SimpleCache.java
index 98c1fc97f7..d1b26f884c 100644
--- a/library/core/src/main/java/com/google/android/exoplayer2/upstream/cache/SimpleCache.java
+++ b/library/core/src/main/java/com/google/android/exoplayer2/upstream/cache/SimpleCache.java
@@ -306,14 +306,16 @@ public final class SimpleCache implements Cache {
   }
 
   @Override
-  public void applyContentMetadataMutations(String key, ContentMetadataMutations mutations)
-      throws CacheException {
+  public synchronized void applyContentMetadataMutations(
+      String key, ContentMetadataMutations mutations) throws CacheException {
+    Assertions.checkState(!released);
     index.applyContentMetadataMutations(key, mutations);
     index.store();
   }
 
   @Override
-  public ContentMetadata getContentMetadata(String key) {
+  public synchronized ContentMetadata getContentMetadata(String key) {
+    Assertions.checkState(!released);
     return index.getContentMetadata(key);
   }