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https://issues.apache.org/jira/browse/AVRO-1532?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14042327#comment-14042327
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Doug Cutting commented on AVRO-1532:
------------------------------------
Oops. Just saw that you have provided a test. Let me look at that more...
> Field deletion not possible for ReflectData: NPE
> ------------------------------------------------
>
> Key: AVRO-1532
> URL: https://issues.apache.org/jira/browse/AVRO-1532
> Project: Avro
> Issue Type: Bug
> Components: java
> Affects Versions: 1.7.6
> Reporter: O. Reißig
> Labels: java, reflection
> Attachments: AVRO-1532.patch, ReflectDataFieldRemovalTest.java
>
>
> *Actual behaviour:*
> I have a field in my reflection-based schema like this:
> {code}
> @Nullable @AvroDefault("null")
> public Long someField;
> {code}
> When removing this field, parsing the previous serialized blob yields
> NullPointerException:
> {noformat}
> java.lang.NullPointerException
> at org.apache.avro.reflect.ReflectData.setField(ReflectData.java:128)
> at
> org.apache.avro.generic.GenericDatumReader.readField(GenericDatumReader.java:193)
> at
> org.apache.avro.reflect.ReflectDatumReader.readField(ReflectDatumReader.java:230)
> at
> org.apache.avro.generic.GenericDatumReader.readRecord(GenericDatumReader.java:183)
> at
> org.apache.avro.generic.GenericDatumReader.read(GenericDatumReader.java:151)
> at
> org.apache.avro.generic.GenericDatumReader.read(GenericDatumReader.java:142)
> at org.apache.avro.file.DataFileStream.next(DataFileStream.java:233)
> at org.apache.avro.file.DataFileStream.next(DataFileStream.java:220)
> at
> ReflectDataFieldRemovalTest.testFieldRemoval(ReflectDataFieldRemovalTest.java:41)
> {noformat}
> *Expected behaviour:*
> Field removal is crucial for schema evolution and must be possible with
> ReflectData.
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