Ismael Juma created KAFKA-2348:
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Summary: Drop support for Scala 2.9
Key: KAFKA-2348
URL: https://issues.apache.org/jira/browse/KAFKA-2348
Project: Kafka
Issue Type: Task
Reporter: Ismael Juma
Assignee: Ismael Juma
Summary of why we should drop Scala 2.9:
* Doubles the number of builds required from 2 to 4 (2.9.1 and 2.9.2 are not
binary compatible).
* Code has been committed to trunk that doesn't build with Scala 2.9 weeks ago
and no-one seems to have noticed or cared (well, I filed
https://issues.apache.org/jira/browse/KAFKA-2325). Can we really support a
version if we don't test it?
* New clients library is written in Java and won't be affected. It also has
received a lot of work and it's much improved since the last release.
* It was released 4 years ago, it has been unsupported for a long time and most
projects have dropped support for it (for example, we use a different version
of ScalaTest for Scala 2.9)
* Scala 2.10 introduced Futures and a few useful features like String
interpolation and value classes.
* Doesn't work with Java 8 (https://issues.apache.org/jira/browse/KAFKA-2203).
Vote thread: http://search-hadoop.com/m/uyzND1DIE422mz94I1
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