[jira] [Created] (SPARK-20926) Exposure to Guava libraries by directly accessing tableRelationCache in SessionCatalog caused failures

["Reza Safi (JIRA)" <ji...@apache.org>]

Reza Safi created SPARK-20926:
---------------------------------

             Summary: Exposure to Guava libraries by directly accessing tableRelationCache in SessionCatalog caused failures
                 Key: SPARK-20926
                 URL: https://issues.apache.org/jira/browse/SPARK-20926
             Project: Spark
          Issue Type: Bug
          Components: Spark Core
    Affects Versions: 2.2.0
            Reporter: Reza Safi


Because of shading that we did for guava libraries, we see test failures whenever those components directly access tableRelationCache in SessionCatalog.
This can happen in any component that shaded guava library. Failures looks like this:
{noformat}
java.lang.NoSuchMethodError: org.apache.spark.sql.catalyst.catalog.SessionCatalog.tableRelationCache()Lcom/google/common/cache/Cache;
01:25:14   at org.apache.spark.sql.hive.test.TestHiveSparkSession.reset(TestHive.scala:492)
01:25:14   at org.apache.spark.sql.hive.test.TestHiveContext.reset(TestHive.scala:138)
01:25:14   at org.apache.spark.sql.hive.test.TestHiveSingleton$class.afterAll(TestHiveSingleton.scala:32)
01:25:14   at org.apache.spark.sql.hive.StatisticsSuite.afterAll(StatisticsSuite.scala:34)
01:25:14   at org.scalatest.BeforeAndAfterAll$class.afterAll(BeforeAndAfterAll.scala:213)
01:25:14   at org.apache.spark.SparkFunSuite.afterAll(SparkFunSuite.scala:31)
01:25:14   at org.scalatest.BeforeAndAfterAll$$anonfun$run$1.apply(BeforeAndAfterAll.scala:280)
01:25:14   at org.scalatest.BeforeAndAfterAll$$anonfun$run$1.apply(BeforeAndAfterAll.scala:278)
01:25:14   at org.scalatest.CompositeStatus.whenCompleted(Status.scala:377)
01:25:14   at org.scalatest.BeforeAndAfterAll$class.run(BeforeAndAfterAll.scala:278)
{noformat}



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