From be6f3eb2affcbca1d41a1d396870e052cbbb3bd5 Mon Sep 17 00:00:00 2001
From: Eric Cochran <Eric@NightlyNexus.com>
Date: Sun, 17 Feb 2019 17:00:29 -0800
Subject: [PATCH] Unconditionally close the peeked JsonReader. (#810)

It doesn't have an effect now, but this is for the future when closing the peeked source also clears buffers.
---
 .../moshi/adapters/PolymorphicJsonAdapterFactory.java     | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/adapters/src/main/java/com/squareup/moshi/adapters/PolymorphicJsonAdapterFactory.java b/adapters/src/main/java/com/squareup/moshi/adapters/PolymorphicJsonAdapterFactory.java
index 73e64b6..1088d8b 100644
--- a/adapters/src/main/java/com/squareup/moshi/adapters/PolymorphicJsonAdapterFactory.java
+++ b/adapters/src/main/java/com/squareup/moshi/adapters/PolymorphicJsonAdapterFactory.java
@@ -235,7 +235,12 @@ public final class PolymorphicJsonAdapterFactory<T> implements JsonAdapter.Facto
     @Override public Object fromJson(JsonReader reader) throws IOException {
       JsonReader peeked = reader.peekJson();
       peeked.setFailOnUnknown(false);
-      int labelIndex = labelIndex(peeked);
+      int labelIndex;
+      try {
+        labelIndex = labelIndex(peeked);
+      } finally {
+        peeked.close();
+      }
       if (labelIndex == -1) {
         reader.skipValue();
         return defaultValue;
@@ -262,7 +267,6 @@ public final class PolymorphicJsonAdapterFactory<T> implements JsonAdapter.Facto
               + reader.nextString()
               + "'. Register a subtype for this label.");
         }
-        reader.close();
         return labelIndex;
       }