wonook commented on a change in pull request #187: [NEMO-324] Distinguish 
Beam's run and waitUntilFinish methods
URL: https://github.com/apache/incubator-nemo/pull/187#discussion_r249811717
 
 

 ##########
 File path: 
compiler/frontend/beam/src/main/java/org/apache/nemo/compiler/frontend/beam/NemoPipelineResult.java
 ##########
 @@ -49,10 +60,12 @@ public State cancel() throws IOException {
 
   @Override
   public State waitUntilFinish(final Duration duration) {
-    throw new UnsupportedOperationException();
-    // TODO #208: NemoPipelineResult#waitUntilFinish hangs
-    // Previous code that hangs the job:
-    // return (State) super.waitUntilJobFinish(duration.getMillis(), 
TimeUnit.MILLISECONDS);
+    try {
+      this.jobDone.await();
 
 Review comment:
   Sounds good. I was unsure that it gets called after the job finishes even 
without a timeout.

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