all: update to latest import ordering

diff --git a/core/src/test/java/io/grpc/internal/ManagedChannelImpl2Test.java b/core/src/test/java/io/grpc/internal/ManagedChannelImpl2Test.java
index 861fefc..7e5ed28 100644
--- a/core/src/test/java/io/grpc/internal/ManagedChannelImpl2Test.java
+++ b/core/src/test/java/io/grpc/internal/ManagedChannelImpl2Test.java
@@ -58,7 +58,6 @@
 import static org.mockito.Mockito.when;
 
 import com.google.common.collect.ImmutableList;
-
 import io.grpc.Attributes;
 import io.grpc.CallCredentials;
 import io.grpc.CallCredentials.MetadataApplier;
@@ -89,7 +88,18 @@
 import io.grpc.StringMarshaller;
 import io.grpc.internal.TestUtils.MockClientTransportInfo;
 import io.grpc.internal.testing.StatsTestUtils.FakeStatsContextFactory;
-
+import java.net.SocketAddress;
+import java.net.URI;
+import java.util.ArrayList;
+import java.util.Arrays;
+import java.util.Collections;
+import java.util.LinkedList;
+import java.util.List;
+import java.util.concurrent.BlockingQueue;
+import java.util.concurrent.Executor;
+import java.util.concurrent.ScheduledExecutorService;
+import java.util.concurrent.TimeUnit;
+import java.util.concurrent.atomic.AtomicLong;
 import org.junit.After;
 import org.junit.Before;
 import org.junit.Rule;
@@ -106,19 +116,6 @@
 import org.mockito.invocation.InvocationOnMock;
 import org.mockito.stubbing.Answer;
 
-import java.net.SocketAddress;
-import java.net.URI;
-import java.util.ArrayList;
-import java.util.Arrays;
-import java.util.Collections;
-import java.util.LinkedList;
-import java.util.List;
-import java.util.concurrent.BlockingQueue;
-import java.util.concurrent.Executor;
-import java.util.concurrent.ScheduledExecutorService;
-import java.util.concurrent.TimeUnit;
-import java.util.concurrent.atomic.AtomicLong;
-
 /** Unit tests for {@link ManagedChannelImpl2}. */
 @RunWith(JUnit4.class)
 public class ManagedChannelImpl2Test {