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Gang Wu resolved PARQUET-2185. ------------------------------ Resolution: Fixed > ParquetReader constructed using builder fails to read encrypted files > --------------------------------------------------------------------- > > Key: PARQUET-2185 > URL: https://issues.apache.org/jira/browse/PARQUET-2185 > Project: Parquet > Issue Type: Bug > Reporter: Atul Mohan > Priority: Minor > > ParquetReader objects can be constructed using the builder as follows: > {code:java} > ParquetReader<Group> builderReader = ParquetReader.builder(new > GroupReadSupport(),new Path("path/to/c000.snappy.parquet")) > .withConf(conf) > .build(); > {code} > This parquetReader object cannot be used to read encrypted files as > {noformat} > builderReader.read(){noformat} > fails with the following exception: > > {code:java} > java.lang.NullPointerException at > org.apache.parquet.crypto.keytools.FileKeyUnwrapper.getKey(FileKeyUnwrapper.java:87) > {code} > It seems like the reason is that the _withConf_ method within the > ParquetReader builder [clears the optionsBuilder set > earlier|https://github.com/apache/parquet-mr/blob/master/parquet-hadoop/src/main/java/org/apache/parquet/hadoop/ParquetReader.java#L231]. > Here is a sample test showcasing the issue: > [https://gist.github.com/a2l007/3d813cc5e44c45100dda169dc6245ae4] -- This message was sent by Atlassian Jira (v8.20.10#820010)