diff --git a/okhttp/src/test/java/io/grpc/transport/okhttp/OkHttpReadableBufferTest.java b/okhttp/src/test/java/io/grpc/transport/okhttp/OkHttpReadableBufferTest.java
index ee3628edc7..28c70d3732 100644
--- a/okhttp/src/test/java/io/grpc/transport/okhttp/OkHttpReadableBufferTest.java
+++ b/okhttp/src/test/java/io/grpc/transport/okhttp/OkHttpReadableBufferTest.java
@@ -49,6 +49,7 @@ public class OkHttpReadableBufferTest extends ReadableBufferTestBase {
 
   private OkHttpReadableBuffer buffer;
 
+  /** Initialize buffer. */
   @SuppressWarnings("resource")
   @Before
   public void setup() {