The cluster_resolver LB policy intentionally does not want to trigger a name resolution refresh for the resolver in Channel, so use ignoreRefreshNameResolutionCheck() to avoid false-positive warnings.

Author: voidzcy

xds/src/main/java/io/grpc/xds/ClusterResolverLoadBalancer.java

@@ -279,8 +279,10 @@ private void handleEndpointResolutionError() {
  private final class RefreshableHelper extends ForwardingLoadBalancerHelper {
  private final Helper delegate;
 
+ @SuppressWarnings("deprecation")
  private RefreshableHelper(Helper delegate) {
  this.delegate = checkNotNull(delegate, "delegate");
+ delegate.ignoreRefreshNameResolutionCheck();
  }
 
  @Override

xds/src/test/java/io/grpc/xds/ClusterResolverLoadBalancerTest.java

@@ -452,6 +452,7 @@ public void onlyLogicalDnsCluster_endpointsResolved() {
  assertAddressesEqual(Arrays.asList(endpoint1, endpoint2), childBalancer.addresses);
  }
 
+ @SuppressWarnings("deprecation")
  @Test
  public void onlyLogicalDnsCluster_handleRefreshNameResolution() {
  deliverConfigWithSingleLogicalDnsCluster();
@@ -461,6 +462,7 @@ public void onlyLogicalDnsCluster_handleRefreshNameResolution() {
  resolver.deliverEndpointAddresses(Arrays.asList(endpoint1, endpoint2));
  assertThat(resolver.refreshCount).isEqualTo(0);
  FakeLoadBalancer childBalancer = Iterables.getOnlyElement(childBalancers);
+ verify(childBalancer.helper).ignoreRefreshNameResolutionCheck();
  childBalancer.helper.refreshNameResolution();
  assertThat(resolver.refreshCount).isEqualTo(1);
  }
@@ -509,6 +511,7 @@ public void onlyLogicalDnsCluster_resolutionError_backoffAndRefresh() {
  inOrder.verifyNoMoreInteractions();
  }
 
+ @SuppressWarnings("deprecation")
  @Test
  public void onlyLogicalDnsCluster_refreshNameResolutionRaceWithResolutionError() {
  InOrder inOrder = Mockito.inOrder(backoffPolicyProvider, backoffPolicy1, backoffPolicy2);
@@ -519,6 +522,7 @@ public void onlyLogicalDnsCluster_refreshNameResolutionRaceWithResolutionError()
  FakeLoadBalancer childBalancer = Iterables.getOnlyElement(childBalancers);
  assertAddressesEqual(Collections.singletonList(endpoint), childBalancer.addresses);
  assertThat(resolver.refreshCount).isEqualTo(0);
+ verify(childBalancer.helper).ignoreRefreshNameResolutionCheck();
 
  childBalancer.helper.refreshNameResolution();
  assertThat(resolver.refreshCount).isEqualTo(1);