diff --git a/cronet/src/main/java/io/grpc/cronet/CronetClientTransport.java b/cronet/src/main/java/io/grpc/cronet/CronetClientTransport.java
index 87cd510048..4c9c44b0b7 100644
--- a/cronet/src/main/java/io/grpc/cronet/CronetClientTransport.java
+++ b/cronet/src/main/java/io/grpc/cronet/CronetClientTransport.java
@@ -31,7 +31,6 @@ import io.grpc.InternalTransportStats;
 import io.grpc.internal.ConnectionClientTransport;
 import io.grpc.internal.GrpcUtil;
 import io.grpc.internal.StatsTraceContext;
-import io.grpc.internal.TransportTracer;
 import java.net.InetSocketAddress;
 import java.util.ArrayList;
 import java.util.HashSet;
diff --git a/grpclb/src/test/java/io/grpc/grpclb/GrpclbLoadBalancerTest.java b/grpclb/src/test/java/io/grpc/grpclb/GrpclbLoadBalancerTest.java
index 01958748e2..3feb985f93 100644
--- a/grpclb/src/test/java/io/grpc/grpclb/GrpclbLoadBalancerTest.java
+++ b/grpclb/src/test/java/io/grpc/grpclb/GrpclbLoadBalancerTest.java
@@ -1395,7 +1395,7 @@ public class GrpclbLoadBalancerTest {
 
     // Attempted to connect to balancer
     assertEquals(1, fakeOobChannels.size());
-    ManagedChannel oobChannel = fakeOobChannels.poll();
+    fakeOobChannels.poll();
     inOrder.verify(mockLbService).balanceLoad(lbResponseObserverCaptor.capture());
     StreamObserver<LoadBalanceResponse> lbResponseObserver = lbResponseObserverCaptor.getValue();
     assertEquals(1, lbRequestObservers.size());
diff --git a/interop-testing/src/main/java/io/grpc/testing/integration/AbstractInteropTest.java b/interop-testing/src/main/java/io/grpc/testing/integration/AbstractInteropTest.java
index 3427f220a5..f7bdeb8d98 100644
--- a/interop-testing/src/main/java/io/grpc/testing/integration/AbstractInteropTest.java
+++ b/interop-testing/src/main/java/io/grpc/testing/integration/AbstractInteropTest.java
@@ -1843,8 +1843,6 @@ public abstract class AbstractInteropTest {
       // Server is not in the same process.  We can't check server-side stats.
       return;
     }
-    AssertionError checkFailure = null;
-    boolean passed = false;
 
     if (metricsExpected()) {
       MetricsRecord serverStartRecord;