Re: [gentoo-java] Feedback on migration and experimental overlay

[Joshua Nichols <nichoj@gentoo.org>]

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Caster wrote:
> Joshua Nichols wrote:
>  > Ah... right. It's not a problem that 1.5 is being used to compile it.
>> The build.xml files get rewritten to make sure 1.4 bytecode gets compiled.
>>
>> By chance, have you configured anything in
>> /etc/java-config-2/build/compilers.conf ? By default, it should use the
>> lowest possible VM, but it can be configured more finely.
>>
>> Josh
> 
> No, didn't change that. It has only the commented example line
> #COMPILERS="ecj-3.1 jikes javac"
> I don't see how to specify JDK version in there  :)

I actually meant compilers.conf, not jdk.conf

> This is getting confusing, you have generation-1 system VM, generation-2
> system VM, this compilers.conf... Any docs that explain how all that
> works, what gets used where?  :)

https://svn.gentooexperimental.org/svn/java/migration/docs/java-user.html

Generation-1 system vm is used by root, and conseuqnently for emerging
packages that are using the old eclasses, ie java-pkg (which would be
most everything at this point).

Generation-2 system vm is used for root.

Generation-2 build vm is configured by the jdk.conf, and is used for
emerging packages which use the new eclasses, ie java-pkg-2.

> And what means "Enabling generation-2 compatibility ..." line in some
> ebuilds? BTW those ebuilds then use jdk-1.4 while ant-core doesn't print
> this line and uses jdk-1.5...

That line is displayed when you have the stuff related to generation-2
installed, ie updated java-config, new vms etc. The new java-config
introduces /usr/bin/java, /usr/bin/jar, etc. These can read GENTOO_VM to
know what vm to be using, so we set that to make sure JAVA_HOME and
/usr/bin/java use the same vm.
> 
> Seems ant-tasks is affected as well, and can't be built because of that.
> http://bugs.gentoo.org/show_bug.cgi?id=132764
> 

Quite aware of the bug now. It didn't happen on the system I was testing
on, but now I'm hitting it as well.

> Caster
> 
> P.S. Um why doesn't this list have reply-to header pointing to the list
> address...
> 

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