1 files changed, 1 insertions, 1 deletions
diff --git a/core/src/test/java/io/grpc/internal/SerializingExecutorTest.java b/core/src/test/java/io/grpc/internal/SerializingExecutorTest.java
index fe3f5666f..55f408192 100644
--- a/core/src/test/java/io/grpc/internal/SerializingExecutorTest.java
+++ b/core/src/test/java/io/grpc/internal/SerializingExecutorTest.java
@@ -35,7 +35,7 @@ import org.junit.runners.JUnit4;
 public class SerializingExecutorTest {
   private SingleExecutor singleExecutor = new SingleExecutor();
   private SerializingExecutor executor = new SerializingExecutor(singleExecutor);
-  private List<Integer> runs = new ArrayList<Integer>();
+  private List<Integer> runs = new ArrayList<>();
 
   private class AddToRuns implements Runnable {
     private final int val;