Yang Jie created SPARK-34224:
--------------------------------

             Summary: Ensure all resource opened by `Source.fromXXX` method are 
closed
                 Key: SPARK-34224
                 URL: https://issues.apache.org/jira/browse/SPARK-34224
             Project: Spark
          Issue Type: Improvement
          Components: Tests
    Affects Versions: 3.2.0
            Reporter: Yang Jie


Using a function like .mkString or .getLines directly on a Source opened by 
fromFile, fromURL, fromURI will leak the underlying file handle, we should 
ensure these resource closed.



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