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From Tamás Cservenák <>
Subject Re: [VOTE] All new (non-patch) releases of Maven Core after 30th Sep 2013 to require Java 6+
Date Tue, 23 Jul 2013 19:36:21 GMT
+1 nb
On Jul 23, 2013 4:00 PM, "Stephen Connolly" <>

> This vote is to cover the minimum required version of Java for Maven Core.
> Maven Plugins produced by the Apache Maven Project that are flagged as
> compatible with older versions of Maven Core as their baseline will still
> require to stick to the minimum Java requirements of that Maven Core
> version. In other words, if for example maven-compiler-plugin advertises
> compatibility with Maven Core 2.0.11+ then that will still need to be
> compiled targeting Java 1.4 and only using dependencies that are aligned
> with that runtime requirement.
> Additionally patch releases to existing releases of Maven Core will not be
> subject to this requirement.
> For example [example]*if* this vote passes and *if* on Sep 29th we release
> Maven 3.2.0 and *if* on Oct 2nd we release Maven 2.0.12, Maven 2.2.2, Maven
> 3.0.6, Maven 3.1.1, Maven 3.2.1 and Maven 3.3.0 (due to say some security
> issue that affected all versions of Maven) then only Maven 3.3.0 would be
> require Java 6 as a minimum runtime requirement, the 2.0.12 release would
> still require Java 1.4 and the 2.2.2, 3.0.6, 3.1.1 and 3.2.1 versions would
> all still require Java 1.5.[/example]
> This is not a requirement that 3rd party plugins need use Java 6 as a
> minimum. Third party plugins are free to require any Java version >= the
> corresponding Maven minimum requirement, though obviously from a users
> perspective it is best if plugins try to adhere to our contracts for
> corresponding versions of Maven Core.
> Justification for the cut-off date:
> * Oracle has gone end of life on Java 6 Feb 2013 (note that there is still
> extended and sustaining support for existing Oracle customers using Java 5)
> * IBM will go end of life for z/OS on 30th Sep 2013 (other platforms are
> still with support, but there are other Java vendors for other platforms)
> * Apple no longer supports any hardware that does not have at least an
> Apple Java 6 version available.
> * Red Hat is providing support for OpenJDK 6
> * HP-UX, OpenVMS, and Tru64 all have a Java 6 implementation available.
> As I see it, that essentially ensures that for the vast majority of
> platforms there is a very strong likelihood of a Java 6 compatible version
> of Java available for that platform. Toolchains support or forking of the
> compiler and surefire can provide support for users who still need to build
> with older versions of Java (e.g., as was the case for Java 1.4.2 with
> Maven 2.2.1). Additionally users who are forced to use a java version older
> than Java 6 also are likely unable to upgrade their version of Maven, so
> this change will not affect them
> This vote is open for 72 hours. A minimum of three +1 binding votes (i.e.
> from the PMC) and the majority of votes cast from committers will be
> required to pass this vote.
> +1000: Yes, and when can we have the vote to go for Java 7 as a minimum?
> (This option is equivalent to +1 but provides people the ability to
> indicate an additional preference while not contributing to the inevitible
> noise)
> +1: Yes
> 0: No opinion
> -1: No
> -Stephen

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