damccorm opened a new issue, #19971:
URL: https://github.com/apache/beam/issues/19971

   One of the tests with this issue:
   ```
   
   ./gradlew -p sdks/java/extensions/sql/ test --tests 
org.apache.beam.sdk.extensions.sql.meta.provider.hcatalog.BeamSqlHiveSchemaTest.testSelectFromImplicitDefaultDb
   --info
   
   ```
   
   Stack trace:
   ```
   
   [direct-runner-worker] ERROR hive.log - Got exception: 
java.lang.NullPointerException null[direct-runner-worker]
   ERROR hive.log - Got exception: java.lang.NullPointerException 
nulljava.lang.NullPointerException 
   at
   
org.apache.hadoop.hive.ql.security.authorization.plugin.AuthorizationMetaStoreFilterHook.getFilteredObjects(AuthorizationMetaStoreFilterHook.java:77)
   ~[hive-exec-2.1.0.jar:2.1.0] 
   at 
org.apache.hadoop.hive.ql.security.authorization.plugin.AuthorizationMetaStoreFilterHook.filterDatabases(AuthorizationMetaStoreFilterHook.java:54)
   ~[hive-exec-2.1.0.jar:2.1.0] 
   at 
org.apache.hadoop.hive.metastore.HiveMetaStoreClient.getDatabases(HiveMetaStoreClient.java:1126)
   [hive-metastore-2.1.0.jar:2.1.0] 
   at 
org.apache.hive.hcatalog.common.HiveClientCache$CacheableHiveMetaStoreClient.isOpen(HiveClientCache.java:369)
   [hive-hcatalog-core-2.1.0.jar:2.1.0] 
   at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
   ~[?:1.8.0_222] 
   at 
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) 
~[?:1.8.0_222]
   
   at 
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
 ~[?:1.8.0_222]
   
   at java.lang.reflect.Method.invoke(Method.java:498) ~[?:1.8.0_222] 
   at 
org.apache.hadoop.hive.metastore.RetryingMetaStoreClient.invoke(RetryingMetaStoreClient.java:150)
   [hive-metastore-2.1.0.jar:2.1.0] 
   at com.sun.proxy.$Proxy56.isOpen(Unknown Source) [?:?] 
   at 
org.apache.hive.hcatalog.common.HiveClientCache.get(HiveClientCache.java:205)
   [hive-hcatalog-core-2.1.0.jar:2.1.0] 
   at 
org.apache.hive.hcatalog.common.HCatUtil.getHiveMetastoreClient(HCatUtil.java:558)
   [hive-hcatalog-core-2.1.0.jar:2.1.0] 
   at 
org.apache.beam.sdk.io.hcatalog.HCatalogUtils.createMetaStoreClient(HCatalogUtils.java:42)
   [beam-sdks-java-io-hcatalog-2.17.0-SNAPSHOT.jar:?] 
   at 
org.apache.beam.sdk.io.hcatalog.HCatalogIO$BoundedHCatalogSource.getEstimatedSizeBytes(HCatalogIO.java:323)
   [beam-sdks-java-io-hcatalog-2.17.0-SNAPSHOT.jar:?] 
   at 
org.apache.beam.runners.direct.BoundedReadEvaluatorFactory$BoundedReadEvaluator.startDynamicSplitThread(BoundedReadEvaluatorFactory.java:172)
   [beam-runners-direct-java-2.17.0-SNAPSHOT-unshaded.jar:?] 
   at 
org.apache.beam.runners.direct.BoundedReadEvaluatorFactory$BoundedReadEvaluator.processElement(BoundedReadEvaluatorFactory.java:148)
   [beam-runners-direct-java-2.17.0-SNAPSHOT-unshaded.jar:?] 
   at 
org.apache.beam.runners.direct.DirectTransformExecutor.processElements(DirectTransformExecutor.java:160)
   [beam-runners-direct-java-2.17.0-SNAPSHOT-unshaded.jar:?] 
   at 
org.apache.beam.runners.direct.DirectTransformExecutor.run(DirectTransformExecutor.java:124)
   [beam-runners-direct-java-2.17.0-SNAPSHOT-unshaded.jar:?] 
   at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
   [?:1.8.0_222] 
   at java.util.concurrent.FutureTask.run(FutureTask.java:266) [?:1.8.0_222] 
   at 
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
   [?:1.8.0_222] 
   at 
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) 
[?:1.8.0_222]
   
   at java.lang.Thread.run(Thread.java:748) [?:1.8.0_222]
   
   ... more NullPointerExceptions
   ```
   
   
   Imported from Jira 
[BEAM-8407](https://issues.apache.org/jira/browse/BEAM-8407). Original Jira may 
contain additional context.
   Reported by: kirillkozlov.


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