xiangqiao123 commented on a change in pull request #18023:
URL: https://github.com/apache/flink/pull/18023#discussion_r769297327
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File path:
flink-runtime/src/main/java/org/apache/flink/runtime/executiongraph/ExecutionJobVertex.java
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@@ -307,13 +323,21 @@ public JobVertexID getJobVertexId() {
@Override
public ExecutionVertex[] getTaskVertices() {
+ if (taskVertices == null) {
Review comment:
Why not use `checkState(isInitialized()); ` to check whether
ExecutionJobVertex is initialized?
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