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https://issues.apache.org/jira/browse/AVRO-1153?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13454213#comment-13454213
]
Alexandre Normand commented on AVRO-1153:
-----------------------------------------
I do need to serialize maps with Integer keys but extending the reflection to
do that seems fair.
I'll revert to my initial patch which was more like you had suggested in your
earlier comment while also doing the refactoring to add the isStringable
method.
> Exception when trying to write object with Nullable field that is of
> Stringable type
> ------------------------------------------------------------------------------------
>
> Key: AVRO-1153
> URL: https://issues.apache.org/jira/browse/AVRO-1153
> Project: Avro
> Issue Type: Bug
> Components: java
> Affects Versions: 1.7.2
> Reporter: Alexandre Normand
> Assignee: Alexandre Normand
> Labels: newbie, reflection
> Attachments: AVRO-1153.patch, AVRO-1153.patch, AVRO-1153.patch
>
>
> There seems to be an issue with [stringable
> fields|https://issues.apache.org/jira/browse/AVRO-1146] that are nullable.
> I'm mostly using ReflectData.AllowNull in my real usage of this feature and
> I'm seeing it fail with this:
> {code}
> org.apache.avro.AvroRuntimeException: Unknown datum type: 10
> at
> org.apache.avro.generic.GenericData.getSchemaName(GenericData.java:574)
> at
> org.apache.avro.generic.GenericData.resolveUnion(GenericData.java:539)
> at
> org.apache.avro.generic.GenericDatumWriter.resolveUnion(GenericDatumWriter.java:137)
> at
> org.apache.avro.generic.GenericDatumWriter.write(GenericDatumWriter.java:70)
> at
> org.apache.avro.reflect.ReflectDatumWriter.write(ReflectDatumWriter.java:104)
> at
> org.apache.avro.generic.GenericDatumWriter.writeRecord(GenericDatumWriter.java:105)
> at
> org.apache.avro.generic.GenericDatumWriter.write(GenericDatumWriter.java:65)
> at
> org.apache.avro.reflect.ReflectDatumWriter.write(ReflectDatumWriter.java:104)
> at
> org.apache.avro.generic.GenericDatumWriter.write(GenericDatumWriter.java:57)
> {code}
> Here's a quick test that shows this problem:
> {code}
> public static class N1 {
> BigDecimal number;
> }
> @Test public void testNullableStringableField() throws Exception {
> N1 datum = new N1();
> datum.number = BigDecimal.TEN;
> checkBinary(ReflectData.AllowNull.get(),
> ReflectData.AllowNull.get().getSchema(N1.class), datum, false);
> }
> {code}
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