liuxian created SPARK-20519:
-------------------------------
Summary: When the input parameter is null, may be a runtime
exeception occurs
Key: SPARK-20519
URL: https://issues.apache.org/jira/browse/SPARK-20519
Project: Spark
Issue Type: Improvement
Components: Spark Core, SQL
Affects Versions: 2.1.0
Reporter: liuxian
Priority: Minor
sqlContext.tables(null)
setCustomHostname(null)
checkHost(null, "test")
checkHostPort(null, "test")
throws exception at runtime:
java.lang.NullPointerException was thrown.
java.lang.NullPointerException
at
org.apache.spark.sql.catalyst.catalog.SessionCatalog.formatDatabaseName(SessionCatalog.scala:125)
at
org.apache.spark.sql.catalyst.catalog.SessionCatalog.listTables(SessionCatalog.scala:715)
at
org.apache.spark.sql.catalyst.catalog.SessionCatalog.listTables(SessionCatalog.scala:706)
at
org.apache.spark.sql.execution.command.ShowTablesCommand$$anonfun$11.apply(tables.scala:655)
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