diff --git a/google-cloud-orgpolicy/src/main/java/com/google/cloud/orgpolicy/v2/stub/GrpcOrgPolicyStub.java b/google-cloud-orgpolicy/src/main/java/com/google/cloud/orgpolicy/v2/stub/GrpcOrgPolicyStub.java
index 5a519959..0ad8cbaa 100644
--- a/google-cloud-orgpolicy/src/main/java/com/google/cloud/orgpolicy/v2/stub/GrpcOrgPolicyStub.java
+++ b/google-cloud-orgpolicy/src/main/java/com/google/cloud/orgpolicy/v2/stub/GrpcOrgPolicyStub.java
@@ -350,7 +350,13 @@ public UnaryCallable<DeletePolicyRequest, Empty> deletePolicyCallable() {
 
   @Override
   public final void close() {
-    shutdown();
+    try {
+      backgroundResources.close();
+    } catch (RuntimeException e) {
+      throw e;
+    } catch (Exception e) {
+      throw new IllegalStateException("Failed to close resource", e);
+    }
   }
 
   @Override
diff --git a/synth.metadata b/synth.metadata
index 5fc8758e..b218ef3e 100644
--- a/synth.metadata
+++ b/synth.metadata
@@ -4,7 +4,7 @@
       "git": {
         "name": ".",
         "remote": "https://github.com/googleapis/java-orgpolicy.git",
-        "sha": "2317fde01451dd636b67f6a39ecbe288d55bcd89"
+        "sha": "70fd1cfb341fdf7b1e2eac069e7b96e3b1f585d8"
       }
     },
     {
@@ -19,8 +19,8 @@
       "git": {
         "name": "googleapis-gen",
         "remote": "https://github.com/googleapis/googleapis-gen.git",
-        "sha": "478f36572d7bcf1dc66038d0e76b9b3fa2abae63",
-        "internalRef": "379784268"
+        "sha": "d196f38277f745f7d99d468c5af0950bc9925b44",
+        "internalRef": "388499329"
       }
     },
     {