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[mkgmap-dev] Commit: r2714: Make java 1.7 mandatory and refuse to run on earlier versions.

From GerdP gpetermann_muenchen at hotmail.com on Fri Sep 27 08:17:41 BST 2013


my main concern is that I don't like to maintain two JRE on my (windows) PC.
I see warning messages when I compile with JDK 1.7 and target 1.6:
[javac] warning: [options] bootstrap class path not set in conjunction with
-source 1.6
I did not find out how to fix this and I don't know what it means
if I post a jar file and one tries to run it on 1.6.


Steve Ratcliffe wrote
> Hi
> On 24/09/13 18:50, WanMil wrote:
>> I don't like rolling back to Java 6 but I would not veto.
>> @Steve, Gerd: what's your opinion about rolling back to Java 6?
> I'm not in any rush to use any Java7 only features, so it is up
> to you guys whether you actually do. But I think we should look at it
> this way:
> If we had a different release policy where we had a stable release,
> say version 2.6.3, and a development branch working towards version
> 3.0.0 then that development branch might be delivered in 6 months or
> even a years time. People kind of expect that with software.
> In such a case I think it is would be reasonable to target the
> development branch at Java 7, since the expected release date would
> then be over a year after the Oracle Java 6 end-of-life date (although I 
> know
> that they have put out a few bug fix releases after February).
> But instead we have a continuous release policy, and so a switch to
> Java 7 hits everyone at the same time. But we could easily also
> support a Java 6 release.
> So what I propose to do is to fully switch trunk builds to Java 7 and
> create a separate 'stable' release for Java 6 which would be at the
> latest version that would still build with 6. At intervals, depending
> required effort and demand, this version could be updated by porting
> over the changes, using openjdk sources if necessary.
> ..Steve
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