Henrique Mota created AVRO-2941:
-----------------------------------

             Summary: Specify in the exception which field the error occurred 
when writing a field in GenericDatumWriter
                 Key: AVRO-2941
                 URL: https://issues.apache.org/jira/browse/AVRO-2941
             Project: Apache Avro
          Issue Type: Improvement
          Components: java
    Affects Versions: 1.9.2, 1.10.0, 1.8.2
            Reporter: Henrique Mota
            Assignee: Henrique Mota


In current versions, when a field cannot be written, an exception is thrown but 
it is not possible to know which field generated an error.

Ex:

 
{code:java}
record Bacon {
  long id;
  string description;
}
{code}
 

When a bacon with a null and serialized description only one NPE is launched 
without specifying which field was in error, the same occurs if the value 
cannot be serialized due to type incompatibility



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