David Mollitor created AVRO-4050:
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             Summary: Deprecate Map Util ConcurrentHashMap
                 Key: AVRO-4050
                 URL: https://issues.apache.org/jira/browse/AVRO-4050
             Project: Apache Avro
          Issue Type: Improvement
          Components: java
    Affects Versions: 1.13.0
            Reporter: David Mollitor
            Assignee: David Mollitor


Since no longer supporting JDK 1.8, deprecated MapUtil method computeIfAbsent 
since the previous performance issue has been addressed starting in JDK9.

 
 * 
https://github.com/apache/avro/blob/main/lang/java/avro/src/main/java/org/apache/avro/util/MapUtil.java#L30
 * 
https://github.com/openjdk/jdk/blob/jdk-11%2B28/src/java.base/share/classes/java/util/concurrent/ConcurrentHashMap.java#L1717



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