Copilot commented on code in PR #7132:
URL: https://github.com/apache/kyuubi/pull/7132#discussion_r2196106119


##########
kyuubi-server/src/main/scala/org/apache/kyuubi/operation/BatchJobSubmission.scala:
##########
@@ -292,13 +292,23 @@ class BatchJobSubmission(
     try {
       info(s"Submitting $batchType batch[$batchId] job:\n$builder")
       val process = builder.start
-      while (process.isAlive && !applicationFailed(_applicationInfo, 
appOperation)) {
+
+      // continue polling if process is alive and applicationId is not set
+      // or application is not failed
+      while (process.isAlive && (
+        !applicationId(_applicationInfo).isDefined ||
+          !applicationFailed(_applicationInfo, appOperation))) {
         doUpdateApplicationInfoMetadataIfNeeded()
         process.waitFor(applicationCheckInterval, TimeUnit.MILLISECONDS)
       }
 

Review Comment:
   [nitpick] The condition logic is complex and could benefit from extraction 
into a helper method like `shouldContinuePolling()` to improve readability and 
maintainability.
   ```suggestion
         // continue polling based on the helper method
         while (shouldContinuePolling(process)) {
           doUpdateApplicationInfoMetadataIfNeeded()
           process.waitFor(applicationCheckInterval, TimeUnit.MILLISECONDS)
         }
   
       private def shouldContinuePolling(process: Process): Boolean = {
         process.isAlive && (
           !applicationId(_applicationInfo).isDefined ||
           !applicationFailed(_applicationInfo, appOperation)
         )
       }
   ```



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