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https://issues.apache.org/jira/browse/PARQUET-1851?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17263924#comment-17263924
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ASF GitHub Bot commented on PARQUET-1851:
-----------------------------------------
gszadovszky commented on pull request #852:
URL: https://github.com/apache/parquet-mr/pull/852#issuecomment-759250313
As I've commented in the jira I think this fix is not complete. I am no
against adding a null check here but it will not solve the potential problem of
writing an empty row group.
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> ParquetMetadataConveter throws NPE in an Iceberg unit test
> ----------------------------------------------------------
>
> Key: PARQUET-1851
> URL: https://issues.apache.org/jira/browse/PARQUET-1851
> Project: Parquet
> Issue Type: Bug
> Affects Versions: 1.11.0
> Reporter: Junjie Chen
> Priority: Major
>
> When writing data to parquet in an Iceberg unit test, it throws NPE as below
> {code:java}
> java.lang.NullPointerExceptionjava.lang.NullPointerException at
> org.apache.parquet.format.converter.ParquetMetadataConverter.addRowGroup(ParquetMetadataConverter.java:476)
> at
> org.apache.parquet.format.converter.ParquetMetadataConverter.toParquetMetadata(ParquetMetadataConverter.java:177)
> at
> org.apache.parquet.hadoop.ParquetFileWriter.serializeFooter(ParquetFileWriter.java:914)
> at
> org.apache.parquet.hadoop.ParquetFileWriter.end(ParquetFileWriter.java:864)
> at org.apache.iceberg.parquet.ParquetWriter.close(ParquetWriter.java:206) at
> org.apache.iceberg.data.TestLocalScan.writeFile(TestLocalScan.java:429)
> {code}
>
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