[PARQUET-1851] ParquetMetadataConveter throws NPE in an Iceberg unit test

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 1.11.0
• Fix Version/s: 1.12.0
• Assignee: Junjie Chen
• Reporter: Junjie Chen
• Created: 28/Apr/20 10:31
• Updated: 23/Jun/24 03:31
• Resolved: 13/Jan/21 12:02

Description

When writing data to parquet in an Iceberg unit test, it throws NPE as below

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)

 

Issue Links

• breaks: PARQUET-2026 Allow empty row in parquet file