Muhammad Asif Tasleem created AVRO-2376:
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Summary: Null Pointer Exception
Key: AVRO-2376
URL: https://issues.apache.org/jira/browse/AVRO-2376
Project: Apache Avro
Issue Type: Bug
Components: java
Affects Versions: 1.8.2
Reporter: Muhammad Asif Tasleem
GenericDatumWriter throws an NPE at line# 67 if datum is null:
@Override
*protected* *void* writeString(Schema schema, Object datum, Encoder out)
*throws* IOException {
{color:#d04437}*if* (!(datum *instanceof* CharSequence){color}
{color:#d04437} && getSpecificData().isStringable(datum.getClass()))
{{color}
datum = datum.toString(); // convert to string
}
writeString(datum, out);
}
The condition that is being verified in GenericDatumWriter at line # 69 should
be broken to handle the case when datum is null:
/** Called to write data.*/
*protected* *void* write(Schema schema, Object datum, Encoder out)
*throws* IOException {
LogicalType logicalType = schema.getLogicalType();
{color:#d04437}*if* (datum != *null* && logicalType != *null*) {{color}
Conversion<?> conversion = getData()
.getConversionByClass(datum.getClass(), logicalType);
writeWithoutConversion(schema,
convert(schema, logicalType, conversion, datum), out);
} *else* {
writeWithoutConversion(schema, datum, out);
}
}
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