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  1. Hadoop HDFS
  2. HDFS-11233

Fix javac warnings related to the deprecated APIs after upgrading Jackson

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Details

    • Bug
    • Status: Resolved
    • Minor
    • Resolution: Fixed
    • 3.0.0-alpha2
    • 3.0.0-alpha2
    • None
    • None
    • Reviewed

    Description

      After HADOOP-12705, the Jackson version upgraded from 2.2.3 to 2.7.8. This lead many APIs which we are used in hadoop being deprecated. Since 2.5, these two APIs are 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.

      Attachments

        1. HDFS-11233-branch-2.001.patch
          12 kB
          Yiqun Lin
        2. HDFS-11233.001.patch
          14 kB
          Yiqun Lin

        Issue Links

          is related to

          Bug - A problem which impairs or prevents the functions of the product. MAPREDUCE-6821 Fix javac warning related to the deprecated APIs after upgrading Jackson

          • Minor - Minor loss of function, or other problem where easy workaround is present.
          • Resolved
          relates to

          Sub-task - The sub-task of the issue HADOOP-12705 Upgrade Jackson 2.2.3 to 2.7.8

          • Major - Major loss of function.
          • Resolved

          Activity

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              linyiqun Yiqun Lin
              linyiqun Yiqun Lin
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              Dates

                Created:
                Updated:
                Resolved: