[SPARK-12921] Use SparkHadoopUtil reflection in SpecificParquetRecordReaderBase #10843
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It looks like there's one place left in the codebase, SpecificParquetRecordReaderBase, where we didn't use SparkHadoopUtil's reflective accesses of TaskAttemptContext methods, which could create problems when using a single Spark artifact with both Hadoop 1.x and 2.x.