newbie startup question

[Marcelo Fukushima]

On Wed, Jul 15, 2009 at 11:29 AM, Raffaello
Giulietti<raffaello.giulietti at gmail.com> wrote:
> Christian Thalinger wrote:
>> Raffaello Giulietti wrote:
>>> Hello,
>>>
>>> I'd like to start playing with da Vinci, in particular with the java.dyn
>>> classes (InvokeDynamic, CallSite, MethodHandle, etc.)
>>>
>>> They seem to be included in the more recent "Java Platform, Standard
>>> Edition 7 Binary Snapshot Releases" found at
>>> http://download.java.net/jdk7/binaries/. So I'm wondering if they are
>>> complete enough and usable or if I shall build Da Vinci from the
>>> Mercurial repos.
>>
>> Yes, current builds have JSR 292 support, although it's not complete.
>
> I just successfully compiled and ran a tiny program with one
> InvokeDynamic call site and the bootstrap method. I did the build in
> NetBeans but had to execute the program on the command line. Running
> inside NetBeans doesn't work right, probably because NB sees confusing
> errors in the source.
>
>> One major point is that there is no compiler support and you have to run
>> your programs with the interpreter (-Xint).  This, plus some other
>> fixes, has been fixed in the mlvm repository.
>>
>
> I guess you mean JIT compiler support, not javac.
>
> Seems to work even without -Xint (but, of course, not without
> -XX:+EnableInvokeDynamic). What are the problems that -Xint is supposed
> to circumvent?

i think he meant that invoke dynamic (also refered to 'indy' on this
list) does not work on compiled mode (JIT compiled that is)

>
>
>> Building is not easy, that's right, so it depends on what you want to
>> play with.  I'd say, give a binary snapshot a try and if you run into
>> problems, build it yourself.  I'd be glad to help you with that.
>>
>
> Christian, I hope to be able to bother neither you nor any other
> subscriber, but I still would like to thank you in advance for your help.
>
> Raffaello
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>



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Marcelo Takeshi Fukushima