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Re: [p2-dev] Java Version Dependency


Indeed, I would have originally thought the same but I suspect that it may have to do with
one of the components that we had to splice in being dependent on Java 8 ... so the entire
build has to up version and so do all of our runtimes.

I would be happy to switch to a Maven/Tycho based build ... after I have a working
build configuration with what used to work =;-)

My biggest issue with all of the Eclipse build configurations is the general lack of _cohesive_
documentation. There is lots of snippets here and snippets there in mailing lists and wiki content
scattered about but little that provides an end to end story.

In any case, thanks for the feedback. If I get a few spare moments perhaps I'll see what I can
spin up with the cool kid technologies.


Doug Schaefer wrote:
Hey Thomas, not sure the answer because we don't use PDE build any more. I can't see how PDE would depend on version of Java. This usually tells me you build with Java 8 and are trying to run on Java 7.

BTW, You should take a look at Maven/Tycho since you're in the middle of upgrading your platform. It's what us cool kids use :).


From: Thomas Fletcher <thomas@xxxxxxxxxxxxxxxxx>
Date: Wed Oct 15 2014 11:25:26 GMT-0400 (EDT)
To: p2-dev@xxxxxxxxxxx <p2-dev@xxxxxxxxxxx>
Subject: [p2-dev] Java Version Dependency


We are moving our product build from the Eclipse 3.x series to the 4.x series and part of this
has involved updating our JVM versions as we migrate to a Luna based
product release.

We were building our product with a Java 8 installation and end up with an error trying to install
some 3rd part external plugins that seemed to imply that we should be building with Java 7 instead.

However, if we try and do that (build with a Java 7 version instead of Java 8) we end up with.

c:\sbinstaller\productBuild\productBuild_4.0.xml:39: The following
error occurred while executing this line:
org/eclipse/osgi/internal/resolver/NativeCodeSpecificationImpl :
Unsupported major.minor version 52.0

This implies to me that there is a dependency on Java 8 for PDE/P2 based builds. Is this correct?


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