Kevin J. Price created AVRO-1792:
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Summary: Cannot specify a 'null' default value
Key: AVRO-1792
URL: https://issues.apache.org/jira/browse/AVRO-1792
Project: Avro
Issue Type: Bug
Components: java
Affects Versions: 1.8.0
Reporter: Kevin J. Price
Priority: Minor
Using the new Schema.Field constructors added in 1.8.0, it is no longer
possible to use the Java API to construct a schema field with a 'null' default
value. That is, the following schema cannot be constructed without using the
deprecated API:
{code}
{
"type": "record",
"name": "base",
"fields": [{
"name": "a",
"type": ["null", "string"],
"default": null
}]
}
{code}
This is because passing a "null" value to the new API implies no default, and
passing the "JsonProperties.NULL_VALUE" sentinel value doesn't work either,
because when it is parsed by "JacksonUtils.toJsonNode", it turns into "null".
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