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From Alex Huang <Alex.Hu...@citrix.com>
Subject RE: [DISCUSS] Supported Java version
Date Mon, 25 Feb 2013 17:36:09 GMT
I don't think these things are mutually exclusive.

We should support Java7.
We should keep supporting Java6 until it is no longer supported by the new distros.

--Alex

> -----Original Message-----
> From: Chip Childers [mailto:chip.childers@sungard.com]
> Sent: Monday, February 25, 2013 7:00 AM
> To: cloudstack-dev@incubator.apache.org
> Cc: Frank Zhang; Alex Huang
> Subject: Re: [DISCUSS] Supported Java version
> 
> I didn't think that we agreed to bumping the java version to 7, and it seems
> like that might make working with distros / packages difficult.
> 
> Adding Alex and Frank to the CC to get their take.
> 
> On Mon, Feb 25, 2013 at 12:23:39PM +0100, Wido den Hollander wrote:
> > Hi,
> >
> > So the last couple of days the master branch wouldn't build on my systems:
> >
> > [INFO] Apache CloudStack Framework - IPC ................. FAILURE
> > [1.874s] ...
> > ...
> > [INFO]
> > ----------------------------------------------------------------------
> > --
> > [ERROR] Failed to execute goal
> > org.apache.maven.plugins:maven-compiler-plugin:2.5.1:compile
> > (default-compile) on project cloud-framework-ipc: Compilation
> > failure: Compilation failure:
> > [ERROR]
> >
> /home/employee/wido/repos/cloudstack/framework/ipc/src/org/apache/cl
> ou
> > dstack/framework/rpc/RpcServerCallImpl.java:[51,58]
> > type parameters of <T>T cannot be determined; no unique maximal
> > instance exists for type variable T with upper bounds
> > T,java.lang.Object [ERROR]
> >
> /home/employee/wido/repos/cloudstack/framework/ipc/src/org/apache/cl
> ou
> > dstack/framework/rpc/RpcClientCallImpl.java:[191,60]
> > type parameters of <T>T cannot be determined; no unique maximal
> > instance exists for type variable T with upper bounds
> > T,java.lang.Object
> >
> > So I'm running Ubuntu 12.04.1 on all my systems (laptop, desktop,
> > servers) and this is the maven information:
> >
> > wido@wido-desktop:~$ mvn -v
> > Apache Maven 3.0.4
> > Maven home: /usr/share/maven
> > Java version: 1.6.0_27, vendor: Sun Microsystems Inc.
> > Java home: /usr/lib/jvm/java-6-openjdk-amd64/jre
> > Default locale: en_US, platform encoding: UTF-8 OS name: "linux",
> > version: "3.2.0-38-generic", arch: "amd64", family: "unix"
> > wido@wido-desktop:~$
> >
> > Now, that Java version is old, I know, but it's the openjdk version
> > which is in Ubuntu 12.04's repositories right now.
> >
> > I downloaded Java 7:
> >
> > wido@wido-
> desktop:~/repos/cloudstack$ JAVA_HOME="/opt/jdk1.7.0_15" mvn
> > -v Apache Maven 3.0.4 Maven home: /usr/share/maven Java version:
> > 1.7.0_15, vendor: Oracle Corporation Java home: /opt/jdk1.7.0_15/jre
> > Default locale: en_US, platform encoding: UTF-8 OS name: "linux",
> > version: "3.2.0-38-generic", arch: "amd64", family: "unix"
> > wido@wido-desktop:~/repos/cloudstack$
> >
> > With that Java version the master branch builds just fine.
> >
> >
> > What I want to discuss which version of Java we support.
> >
> > I'd say we support the LTS version of any major release of CentOS or
> Ubuntu.
> >
> > I also understand that Java 6 is pretty old, so what do we do?
> >
> > Wido
> >

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