Re: Isolated Methods JEP

[Martijn Verburg]

Hi Michael,

Love the overall idea.  A few thoughts (feel free to ignore as I'm by no
means an expert in the VM).

* Is there a risk that Gargantuan can expand to infinite size?

* I'm really nervous about the security implications of being able to load
an arbitrary byte[] that can be executed as a method. I'm hoping that the
use of the internal Unsafe + Jigsaw's module boundaries makes this secure.
Lots of really, really smart people have looked at the security
implications of this, right? :-)

* Gargantuan - Appreciate it's a placeholder but I can't say I like the
name, it doesn't tell me what it does on the tin.

Cheers,
Martijn

On 5 August 2016 at 17:33, Michael Haupt  wrote:

> Dear all,
>
> during the Indy workshop at JVMLS, a JEP draft supposed to enable the
> loading of methods in isolation was mentioned and discussed. This JEP draft
> is now public, and I'd like to invite The Interested Parties (you know who
> you are) to tear it apart in a constructive manner. :-)
>
> https://bugs.openjdk.java.net/browse/JDK-8158765
>
> Thanks,
>
> Michael
>
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Re: JVM Language Summit (Europe)?

[Martijn Verburg]

Hi all,

We're working on this (getting a venue etc). I think the focus is likely to
be narrowed to have some presentations/discussions and workshops on Java 9
(10?) related topics. In particular Jigsaw, Type Reification (or not), and
Value Types/Tuples/Packed Objects/Structs/Whatever you want to call them.




Cheers,
Martijn


On 21 October 2013 20:10, Francis ANDRE francis.andre.kampb...@orange.frwrote:

  Hi Martijn

 I am interested by the JVM Summit in Europe. How can I join the process?

 Francis
 Le 02/10/2013 14:38, Martijn Verburg a écrit :

 Hi all,

  Hope this is the right mailing list to post on, apologies for the slight
 OT post.

  A few people asked whether the LJC could/would host a JVM language
 summit in Europe which would hopefully cover the EMEA based folks that
 can't make the existing summit.

  I'd like to get an idea of whether there's appetite for this and if so
 when it should be run:

  * At the same time and have some video-conferencing sessions? OR
  * At a time almost 'opposite' to the existing summit so that there's a
 summit roughly every 6-months.

  Ping me directly with your thoughts (unless this is the right mailing
 list - in that case reply back here).

 Cheers,
 Martijn


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Re: JVM Language Summit (Europe)?

[Martijn Verburg]

We work next door to James - I can see something really useful coming out
of this as it's the same space we want to potentially share.  Maybe we can
have a JVM Summit track in the middle of his conference (or off to the
side).  I'll chat to him and see.

Cheers,
Martijn


On 6 October 2013 15:24, David Pollak feeder.of.the.be...@gmail.com wrote:

 FWIW, Monkigras is running at the same time:
 http://lanyrd.com/2014/monkigras/

 I don't know the cross-over between the two conferences, but I put it out
 there if there is.


 On Sat, Oct 5, 2013 at 9:23 AM, Ben Evans 
 benjamin.john.ev...@gmail.comwrote:

 How about a 1.5 day conference on Thursday 30th  morning of Friday 31st
 January?

 Then people who are coming to Europe for FOSDEM can arrive in London on
 Weds, have the language summit for 1.5 days  we can all get the Eurostar
 to Brussels together to arrive in time for the Delerium cafe?

 Thanks,

 Ben


 On Sat, Oct 5, 2013 at 11:09 AM, Martijn Verburg 
 martijnverb...@gmail.com wrote:

 Hi all,

 Great - I think that's enough positive responses + the ones I got on
 twitter :-).  Ben and I will put our thinking caps on and see if we can put
 something very close to FOSDEM so that folks can just Eurostar across (it's
 the only way to travel ;p).

 We'll try to grab some sponsorship etc, but I'll warn people that for
 now they should expect to pay their own way for travel and accommodation.

 Will post here again when we have some more concrete plans!


 Cheers,
 Martijn


 On 5 October 2013 07:30, Cédric Champeau cedric.champ...@gmail.comwrote:

 Hi!

 I am interested too, and I'd vote for an opposite summit.

 Cédric


 2013/10/2 Martijn Verburg martijnverb...@gmail.com

 Hi all,

 Hope this is the right mailing list to post on, apologies for the
 slight OT post.

 A few people asked whether the LJC could/would host a JVM language
 summit in Europe which would hopefully cover the EMEA based folks that
 can't make the existing summit.

 I'd like to get an idea of whether there's appetite for this and if so
 when it should be run:

 * At the same time and have some video-conferencing sessions? OR
 * At a time almost 'opposite' to the existing summit so that there's a
 summit roughly every 6-months.

 Ping me directly with your thoughts (unless this is the right mailing
 list - in that case reply back here).

 Cheers,
 Martijn

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Re: JVM Language Summit (Europe)?

[Martijn Verburg]

Hi all,

Great - I think that's enough positive responses + the ones I got on
twitter :-).  Ben and I will put our thinking caps on and see if we can put
something very close to FOSDEM so that folks can just Eurostar across (it's
the only way to travel ;p).

We'll try to grab some sponsorship etc, but I'll warn people that for now
they should expect to pay their own way for travel and accommodation.

Will post here again when we have some more concrete plans!


Cheers,
Martijn


On 5 October 2013 07:30, Cédric Champeau cedric.champ...@gmail.com wrote:

 Hi!

 I am interested too, and I'd vote for an opposite summit.

 Cédric


 2013/10/2 Martijn Verburg martijnverb...@gmail.com

 Hi all,

 Hope this is the right mailing list to post on, apologies for the slight
 OT post.

 A few people asked whether the LJC could/would host a JVM language summit
 in Europe which would hopefully cover the EMEA based folks that can't make
 the existing summit.

 I'd like to get an idea of whether there's appetite for this and if so
 when it should be run:

 * At the same time and have some video-conferencing sessions? OR
 * At a time almost 'opposite' to the existing summit so that there's a
 summit roughly every 6-months.

 Ping me directly with your thoughts (unless this is the right mailing
 list - in that case reply back here).

 Cheers,
 Martijn

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JVM Language Summit (Europe)?

[Martijn Verburg]

Hi all,

Hope this is the right mailing list to post on, apologies for the slight OT
post.

A few people asked whether the LJC could/would host a JVM language summit
in Europe which would hopefully cover the EMEA based folks that can't make
the existing summit.

I'd like to get an idea of whether there's appetite for this and if so when
it should be run:

* At the same time and have some video-conferencing sessions? OR
* At a time almost 'opposite' to the existing summit so that there's a
summit roughly every 6-months.

Ping me directly with your thoughts (unless this is the right mailing list
- in that case reply back here).

Cheers,
Martijn
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Re: JVM Summit Wrokshop/talk request

[Martijn Verburg]

+1 :-)

Cheers,
Martijn


On 11 April 2013 21:09, Charles Oliver Nutter head...@headius.com wrote:

 I would absolutely love to have a European edition of the JVM Language
 Summit. It's not a very complicated event to put together, and it
 would give us an opportunity to meet with more language folks than can
 make it to California for JVMLS.

 You could count on my attendance.

 - Charlie

 On Thu, Apr 11, 2013 at 5:30 AM, MacGregor, Duncan (GE Energy
 Management) duncan.macgre...@ge.com wrote:
  I would certainly be interested, though travel budgets do seem to be
 tight
  this year.
 
  We could probably host it here in Cambridge if you guys want to come over
  to the UK.
 
  On 09/04/2013 08:19, Julien Ponge julien.po...@gmail.com wrote:
 
 Just an idea: would some of you be interested in having a meeting at some
 point in Europe?
 
 I (or Rémi) can probably organise something at our Unis.
 
 - Julien
 
 On Apr 9, 2013, at 4:55 AM, Mark Roos mr...@roos.com wrote:
 
  Thanks for the interest.
 
  I added this workshop to my proposal.  Inputs are welcome on how to
  make it a good workshop.
 
  mark
 
  Improving the performance of InvokeDynamic
 
  Now that we have some experience with InvokeDynamic its time
  to discuss strategies and efforts for performance improvement.
  We expect to have experts, HotSpot implementers and users
  discussing how to get the best performance
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Re: OSX port

[Martijn Verburg]

This would be extremely helpful in being able to organise hack nights with
the Java User Groups globally to beat up on an experimental feature and
provide feedback on it here (such as coroutines).

Cheers,
Martijn

On 20 April 2012 00:27, Henri Gomez henri.go...@gmail.com wrote:

 Hi to all,

 I'm wondering when OSX support will be merged in mlvm trunk.

 I'm releasing OSX packages for stock Java 8,  jigsaw and lambda easily now
 but mlvm build is still too tricky and a pain.

 Any chance to get OSX code merged so OSX Java 8 early adopters could play
 with Continuous packages as they do with others Java 8 projects ?

 Cheers
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Re: Coroutines in JDK8++?

[Martijn Verburg]

Hi Mark,

On 3 April 2012 00:40, Mark Roos mr...@roos.com wrote:

 Hi Martijn

 If the effort meets my needs I'll be there to help.  My goal is a full
 implementation
 of Smalltalk on the JVM.  One thing I need is the ability to manipulate a
 suspended
 thread from the object side.  For this Lukas' work seems a good fit.


Sounds good, I know I've heard of a Smalltalk port that is already in
existence, is this your work?

My concern is that (as John Rose points out) this will open a security hole
 that makes
 Java folks uncomfortable.  As such the final result could be political not
 technical, not
 a battle I would relish.


I think that's why we should first get a good OSS project around this and
then have a full discussion as soon
as possible (e.g. When the right people have got some cycles to think about
this properly/deeply).

Cheers,
Martijn
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Re: Coroutines in JDK8++?

[Martijn Verburg]

Hi Lukas/Charlie,

Basically we're trying to get more people involved in the OpenJDK as well
as
helping projects like coroutines get into a good shape for possible
inclusion into
the OpenJDK. This includes helping out with JEP and JSR processes as a
project matures.

In this case I think the suitable thing to do would be to coordinate work
around
your existing patch via some sort of OSS project and look at all of the
aspects
that would need to be covered in order for it to be accepted into the
OpenJDK.
For example, a lot of thought will need to go into the impact on with
existing and
future concurrency capabilities and it would be good to plan lots of
empirical
testing against a large corpus of existing code.

Once that project is well underway, the next step would probably be to
raise a JEP
under the OpenJDK process (See http://openjdk.java.net/jeps/0).

I think you would only raise a JSR once there was general consensus for
coroutines
to go in and resources were committed.

So first step is to create an OSS project around your patch, which we can
discuss
on your co_jsr mailing list.  I'll kick off a thread there.

Cheers,
Martijn


On 2 April 2012 19:06, Charles Oliver Nutter head...@headius.com wrote:

 Getting coro into JDK8 is obviously not possible now, but the sooner
 we get started the more likely we can shoot for JDK9. That needs
 people with cycles. I have some, and I'm willing to help, but I do not
 know how the JSR process works (yes, I should learn) and I'm not
 enough of a VM-level expert to handle technical aspects of the coro
 JSR.

 I may have some changes coming up that allow me to work more closely
 with the JSR and OpenJDK projects.

 - Charlie

 On Mon, Apr 2, 2012 at 10:53 AM, Lukas Stadler lukas.stad...@jku.at
 wrote:
  Hi,
 
  I've last updated the coro patch beginning of December, and people have
 been
  compiling and using it at least mid-February.
  It is quite experimental, but it's complete enough to prove the
 usefulness
  of coroutines on a JVM.
 
  One important step towards coroutines on Java is a JSR, I guess...
  There's a mailing list hosted on one of our university servers for the
  purpose of discussing coroutine/continuation JSR proposals, but there
 hasn't
  been much traffic lately (partly because of lack of time and
 responsiveness
  on my side, I fear...).
  https://www.ssw.uni-linz.ac.at/cgi-bin/mailman/listinfo/co_jsr
 
  How does the Adopt OpenJDK program interact with JSRs? It may be a good
 time
  to start discussing a coroutine JSR again...
 
  Cheers,
   Lukas
 
  Am 2012-04-01 09:45, schrieb Martijn Verburg:
 
  Hi Mark,
 
  Last I heard there was an old experimental patch by Lucas? sp. I
  know that we have some very interested people in the London Java User
  Group (aka the LJC).  We've listed it as one of the Advanced projects
  we'll be looking into as part of the global Adopt OpenJDK program, so
  if you have some spare cycles and are interested in joining in then
  please let me know.
 
  Cheers,
  Martijn
 
  On 1 April 2012 09:44, Mark Roos mr...@roos.com wrote:
 
  I was looking at the proposals for JDK8.9.10 and did not see any mention
  of coroutines/green threads.
 
  Are they flawed, not interesting, etc or just did not rise to the level
 of
  getting
  a bullet? Or maybe they did get the bullet.
 
  mark
 
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Re: Coroutines in JDK8++?

[Martijn Verburg]

Hi Mark,

Last I heard there was an old experimental patch by Lucas? sp. I
know that we have some very interested people in the London Java User
Group (aka the LJC).  We've listed it as one of the Advanced projects
we'll be looking into as part of the global Adopt OpenJDK program, so
if you have some spare cycles and are interested in joining in then
please let me know.

Cheers,
Martijn

On 1 April 2012 09:44, Mark Roos mr...@roos.com wrote:
 I was looking at the proposals for JDK8.9.10 and did not see any mention
 of coroutines/green threads.

 Are they flawed, not interesting, etc or just did not rise to the level of
 getting
 a bullet? Or maybe they did get the bullet.

 mark

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Re: Help with JIT talk for tomorrow

[Martijn Verburg]

Hi all,

FYI - I checked with Georges Saab and he thinks there was simply an
outage at Santa Clara.  Let me know if the page is still down!

There is a longer term plan to shift things off the older
infrastructure, details TBA.

Cheers,
Martijn

On 9 October 2011 21:59, Krystal Mok rednaxel...@gmail.com wrote:
 On Mon, Oct 10, 2011 at 3:43 AM, Sebastian Sickelmann
 sebastian.sickelm...@gmx.de wrote:

 Unfortunately http://wikis.sun.com/display/HotSpotInternals/Home seems to
 be down.

 :-(

 Same here. I was trying to access it last night and I got redirected to Bug
 Database instead.


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