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  1. Hadoop Common
  2. HADOOP-17098 Reduce Guava dependency in Hadoop source code
  3. HADOOP-17108

Create Classes to wrap Guava code replacement

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    • Sub-task
    • Status: Open
    • Major
    • Resolution: Unresolved
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    Description

      Usage of Guava APIs in hadoop may not have one line replacement in Java8+. We need to create some classes to wrap those common functionalities instead of reinventing the wheel everywhere.
      For example, we should have new package package org.apache.hadoop.util.collections.
      Then we create classes like MultiMap which may have the entire implementation from scratch or we can use Apache Commons Collections 4.4 API.
      The Pros of using wrapper is to avoid adding more dependencies in POM if we vote to use a third party jar.

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        incorporates

        Sub-task - The sub-task of the issue HADOOP-17126 implement non-guava Precondition checkNotNull

        • Major - Major loss of function.
        • Resolved

        Sub-task - The sub-task of the issue HADOOP-17152 Implement wrapper for guava newArrayList and newLinkedList

        • Major - Major loss of function.
        • Resolved
        requires

        Sub-task - The sub-task of the issue HADOOP-17106 Add unguava implementation for Joiner in hadoop.StringUtils

        • Major - Major loss of function.
        • Patch Available

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            Unassigned Unassigned
            ahussein Ahmed Hussein
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