[GitHub] [spark] dongjoon-hyun commented on a change in pull request #28797: [SPARK-31926][SQL][TEST-HIVE1.2][test-maven] Fix concurrency issue for ThriftCLIService to getPortNumber

[GitBox <gi...@apache.org>]

dongjoon-hyun commented on a change in pull request #28797:
URL: https://github.com/apache/spark/pull/28797#discussion_r440253166



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File path: sql/hive-thriftserver/src/test/scala/org/apache/spark/sql/hive/thriftserver/SharedThriftServer.scala
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@@ -50,14 +53,21 @@ trait SharedThriftServer extends SharedSparkSession {
       hiveServer2.stop()

Review comment:
       From some Jenkins jobs, NPE is reported here.
   ```
   sbt.ForkMain$ForkError: java.lang.NullPointerException: null
   	at org.apache.spark.sql.hive.thriftserver.SharedThriftServer.afterAll(SharedThriftServer.scala:53)
   ```




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