amaliujia commented on a change in pull request #12830:
URL: https://github.com/apache/beam/pull/12830#discussion_r492300048



##########
File path: 
sdks/java/io/google-cloud-platform/src/main/java/org/apache/beam/sdk/io/gcp/pubsub/TestPubsubSignal.java
##########
@@ -239,6 +245,12 @@ public void waitForSuccess(Duration duration) throws 
IOException {
 
     String result = pollForResultForDuration(resultSubscriptionPath, duration);
 
+    try {
+      pubsub.deleteSubscription(resultSubscriptionPath);
+    } catch (IOException e) {
+      LOG.warn(String.format("Leaked PubSub subscription '%s'", 
resultSubscriptionPath));

Review comment:
       nit: make error will make it easier to be discovered.




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