hzfanxinxin edited a comment on pull request #1143:
URL: https://github.com/apache/iceberg/pull/1143#issuecomment-651521784
1. Run the tests
`./gradlew :iceberg-data:clean :iceberg-data:test --tests
org.apache.iceberg.data.parquet.TestGenericReadProjection`
2. This fails with output like so:
`
> Task :iceberg-data:test
org.apache.iceberg.data.parquet.TestGenericReadProjection >
testBasicProjection FAILED
java.lang.NullPointerException
at
org.apache.iceberg.data.parquet.GenericParquetReaders$ReadBuilder.primitive(GenericParquetReaders.java:234)
at
org.apache.iceberg.data.parquet.GenericParquetReaders$ReadBuilder.primitive(GenericParquetReaders.java:118)
at
org.apache.iceberg.parquet.TypeWithSchemaVisitor.visit(TypeWithSchemaVisitor.java:52)
at
org.apache.iceberg.parquet.TypeWithSchemaVisitor.visitField(TypeWithSchemaVisitor.java:155)
at
org.apache.iceberg.parquet.TypeWithSchemaVisitor.visitFields(TypeWithSchemaVisitor.java:169)
at
org.apache.iceberg.parquet.TypeWithSchemaVisitor.visit(TypeWithSchemaVisitor.java:47)
at
org.apache.iceberg.data.parquet.GenericParquetReaders.buildReader(GenericParquetReaders.java:78)
at
org.apache.iceberg.data.parquet.GenericParquetReaders.buildReader(GenericParquetReaders.java:70)
at
org.apache.iceberg.data.parquet.TestGenericReadProjection.lambda$writeAndRead$0(TestGenericReadProjection.java:48)
at org.apache.iceberg.parquet.ReadConf.<init>(ReadConf.java:109)
at
org.apache.iceberg.parquet.ParquetReader.init(ParquetReader.java:66)
at
org.apache.iceberg.parquet.ParquetReader.iterator(ParquetReader.java:77)
at
org.apache.iceberg.parquet.ParquetReader.iterator(ParquetReader.java:38)
at
org.apache.iceberg.relocated.com.google.common.collect.Iterables.getOnlyElement(Iterables.java:254)
at
org.apache.iceberg.data.parquet.TestGenericReadProjection.writeAndRead(TestGenericReadProjection.java:51)
14 tests completed, 1 failed
`
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