[GitHub] spark pull request: [SPARK-5239][CORE]JdbcRDD throws "java.lang.Ab...

[srowen <gi...@git.apache.org>]

Github user srowen commented on the pull request:

    https://github.com/apache/spark/pull/4033#issuecomment-73241705
  
    I take it back (see https://issues.apache.org/jira/browse/SPARK-5481) Yes, there's evidence of JDBC 3 drivers in the wild, still, and because I confirmed that `close()`ing these three objects is required to be a no-op if already closed, so, this really can't hurt.
    
    Similar changes should be made in `JDBCRDD.scala` in Spark SQL. Could you update the PR to address that too?


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