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From "Raghu Angadi (JIRA)" <j...@apache.org>
Subject [jira] Created: (HADOOP-5823) Handling javac "deprecated" warning for using UTF8
Date Wed, 13 May 2009 21:36:45 GMT
Handling javac "deprecated" warning for using UTF8

                 Key: HADOOP-5823
                 URL: https://issues.apache.org/jira/browse/HADOOP-5823
             Project: Hadoop Core
          Issue Type: Bug
          Components: build
    Affects Versions: 0.20.0
            Reporter: Raghu Angadi
            Assignee: Raghu Angadi
             Fix For: 0.21.0

o.a.h.io.UTF8 is deprecated but is still used in multiple places. FSEditLog.java has 40 UTF8
related warnings. I don't think it is feasible to avoid using UTF8 in FSEditLog.java. 

Two options to get rid of these warnings :
  1. use @SupressWarnings at each use of UTF or for enclosing class.
  2. define a wrapper class {{DeprecatedUTF8}} that is not {{@deprecated}}. 

I prefer the second option in this case since it keeps FSEditLog.java and other places clean
and still makes it explicit that a deprecated class is used.

This is part of spring cleaning effort to remove warnings in javac. I will attach a patch
for the second option.

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