Yiqun Lin created HDFS-11233:
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Summary: The APIs to be deprecated after Jackson upgraded
Key: HDFS-11233
URL: https://issues.apache.org/jira/browse/HDFS-11233
Project: Hadoop HDFS
Issue Type: Improvement
Affects Versions: 3.0.0-alpha2
Reporter: Yiqun Lin
Assignee: Yiqun Lin
After HADOOP-12705, the Jackson version upgraded from 2.2.5 to 2.7.8. This lead
many APIs which we are used in hadoop being deprecated. Since 2.5, these two
APIs is deprecated: {{ObjectReader#readerFor(Class<?>
type)}},{{ObjectWriter#writerWithType(JavaType
rootType)}}(http://fasterxml.github.io/jackson-databind/javadoc/2.6/com/fasterxml/jackson/databind/ObjectMapper.html).
According to the doc of ObjectMapper, we can use
{{ObjectReader#readerFor(Class<?> type)}} and {{#
ObjectWriter#writerFor(JavaType)}} instead.
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