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https://issues.apache.org/jira/browse/AVRO-4321?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=18102020#comment-18102020
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ASF subversion and git services commented on AVRO-4321:
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Commit cb1ebc20506c30eb652b565847bf77dd97b75893 in avro's branch
refs/heads/main from Ryan Skraba
[ https://gitbox.apache.org/repos/asf?p=avro.git;h=cb1ebc2050 ]
AVRO-4321: Fix NPE on getConversionByClass (#3908)
> [Java] NPE on getConversionByClass
> ----------------------------------
>
> Key: AVRO-4321
> URL: https://issues.apache.org/jira/browse/AVRO-4321
> Project: Apache Avro
> Issue Type: Bug
> Affects Versions: 1.12.2
> Reporter: Ryan Skraba
> Assignee: Ryan Skraba
> Priority: Major
> Labels: pull-request-available
> Time Spent: 20m
> Remaining Estimate: 0h
>
> AVRO-3989 (fixed in [https://github.com/apache/avro/pull/3354/changes)]
> registers LogicalType conversion classes explicitly – as a side effect, we
> now see NullPointerExceptions on the {{getConversionByClass(datum,
> logicalType)}} methods when logicalType is null (which is a valid use case
> for Stringable classes, for example.
> This breaks some Parquet unit tests for Stringable data and is a regression
> that should be fixed for 1.12.2.
> {code:java}
> java.lang.NullPointerException: Cannot invoke
> "org.apache.avro.LogicalType.getName()" because "logicalType" is null
> at
> org.apache.avro.generic.GenericData.getConversionByClass(GenericData.java:190)
> at
> org.apache.parquet.avro.AvroRecordConverter.newConverter(AvroRecordConverter.java:360)
> at
> org.apache.parquet.avro.AvroRecordConverter.<init>(AvroRecordConverter.java:152)
> at
> org.apache.parquet.avro.AvroRecordConverter.<init>(AvroRecordConverter.java:99)
> at
> org.apache.parquet.avro.AvroRecordMaterializer.<init>(AvroRecordMaterializer.java:33)
> at
> org.apache.parquet.avro.AvroReadSupport.prepareForRead(AvroReadSupport.java:195)
>
> at
> org.apache.parquet.hadoop.InternalParquetRecordReader.initialize(InternalParquetRecordReader.java:205)
>
> at
> org.apache.parquet.hadoop.ParquetReader.initReader(ParquetReader.java:181)
>
> {code}
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