[jira] [Created] (KAFKA-6923) Deprecate ExtendedSerializer/Serializer and ExtendedDeserializer/Deserializer

["Ismael Juma (JIRA)" <ji...@apache.org>]

Ismael Juma created KAFKA-6923:
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             Summary: Deprecate ExtendedSerializer/Serializer and ExtendedDeserializer/Deserializer
                 Key: KAFKA-6923
                 URL: https://issues.apache.org/jira/browse/KAFKA-6923
             Project: Kafka
          Issue Type: Improvement
          Components: clients
            Reporter: Ismael Juma
             Fix For: 2.1.0


The Javadoc of ExtendedDeserializer states:

{code}
 * Prefer {@link Deserializer} if access to the headers is not required. Once Kafka drops support for Java 7, the
 * {@code deserialize()} method introduced by this interface will be added to Deserializer with a default implementation
 * so that backwards compatibility is maintained. This interface may be deprecated once that happens.
{code}

Since we have dropped Java 7 support, we should figure out how to do this. There are compatibility implications, so a KIP is needed.



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