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sunjincheng updated BEAM-8557: ------------------------------ Description: I think we do not need null check here: [https://github.com/apache/beam/blob/master/runners/java-fn-execution/src/main/java/org/apache/beam/runners/fnexecution/control/FnApiControlClient.java#L151] Because before the the `onNext` call, the `Future` already put into the queue in `handle` method. I found the test as follows: {code:java} @Test public void testUnknownResponseIgnored() throws Exception{code} I am do not know why we need test this case? I think it would be better if we throw the Exception for an UnknownResponse, otherwise, this may hidden a potential bug. What do you think? @kennknowles was: I think we do not need null check here: [https://github.com/apache/beam/blob/master/runners/java-fn-execution/src/main/java/org/apache/beam/runners/fnexecution/control/FnApiControlClient.java#L151] Because before the the `onNext` call, the `Future` already put into the queue in `handle` method. I found the test as follows: {code:java} @Test public void testUnknownResponseIgnored() throws Exception{code} I am do not know why we need test this case? @kennknowles What do you think? > Clean up useless null check. > ---------------------------- > > Key: BEAM-8557 > URL: https://issues.apache.org/jira/browse/BEAM-8557 > Project: Beam > Issue Type: Sub-task > Components: runner-core, sdk-java-harness > Reporter: sunjincheng > Assignee: sunjincheng > Priority: Major > Time Spent: 10m > Remaining Estimate: 0h > > I think we do not need null check here: > [https://github.com/apache/beam/blob/master/runners/java-fn-execution/src/main/java/org/apache/beam/runners/fnexecution/control/FnApiControlClient.java#L151] > Because before the the `onNext` call, the `Future` already put into the queue > in `handle` method. > > I found the test as follows: > {code:java} > @Test > public void testUnknownResponseIgnored() throws Exception{code} > I am do not know why we need test this case? I think it would be better if we > throw the Exception for an UnknownResponse, otherwise, this may hidden a > potential bug. > What do you think? @kennknowles > -- This message was sent by Atlassian Jira (v8.3.4#803005)