diff --git a/core/src/main/java/org/elasticsearch/index/shard/IndexSearcherWrapper.java b/core/src/main/java/org/elasticsearch/index/shard/IndexSearcherWrapper.java
index 7772a0dbc30..0e7c4772b13 100644
--- a/core/src/main/java/org/elasticsearch/index/shard/IndexSearcherWrapper.java
+++ b/core/src/main/java/org/elasticsearch/index/shard/IndexSearcherWrapper.java
@@ -71,7 +71,7 @@ public class IndexSearcherWrapper {
         if (reader != nonClosingReaderWrapper) {
             if (reader.getCoreCacheKey() != elasticsearchDirectoryReader.getCoreCacheKey()) {
                 throw new IllegalStateException("wrapped directory reader doesn't delegate IndexReader#getCoreCacheKey, wrappers must override this method and delegate" +
-                        " to the original readers core cache key. Wrapped readers can't used as cache keys since their are used only per request which would lead to subtile bugs");
+                        " to the original readers core cache key. Wrapped readers can't be used as cache keys since their are used only per request which would lead to subtle bugs");
             }
             if (ElasticsearchDirectoryReader.getElasticsearchDirectoryReader(reader) != elasticsearchDirectoryReader) {
                 // prevent that somebody wraps with a non-filter reader
@@ -109,7 +109,7 @@ public class IndexSearcherWrapper {
         }
     }
 
-    final class NonClosingReaderWrapper extends FilterDirectoryReader {
+    private static final class NonClosingReaderWrapper extends FilterDirectoryReader {
 
         private NonClosingReaderWrapper(DirectoryReader in) throws IOException {
             super(in, new SubReaderWrapper() {
diff --git a/core/src/test/java/org/elasticsearch/index/shard/IndexShardTests.java b/core/src/test/java/org/elasticsearch/index/shard/IndexShardTests.java
index c7e63893bbe..f7b14192b49 100644
--- a/core/src/test/java/org/elasticsearch/index/shard/IndexShardTests.java
+++ b/core/src/test/java/org/elasticsearch/index/shard/IndexShardTests.java
@@ -967,9 +967,6 @@ public class IndexShardTests extends ESSingleNodeTestCase {
             newShard.refresh("test");
             assertEquals(shard.fieldData().stats("foo").getMemorySizeInBytes(), before.getMemorySizeInBytes());
             assertEquals(shard.fieldData().stats("foo").getEvictions(), before.getEvictions());
-        } catch (Throwable t) {
-            t.printStackTrace();
-            throw t;
         } finally {
             newShard.close("just do it", randomBoolean());
         }