help: configuration issues
Maurizio Cimadamore
maurizio.cimadamore at oracle.com
Wed Sep 13 15:17:20 UTC 2017
Phew - thanks for letting us know!
Cheers
Maurizio
On 13/09/17 15:19, Razvan Minciuna wrote:
> Hi Maurizio,
>
> Everything worked perfect. Thank you.
>
> After the installation I was able to run this simple Hello World code:
>
> import java.util.ArrayList;
> import java.util.List;
>
> public class App{
> public static void main(String[] args){
> var list = new ArrayList<>():
> list.add("Razvan");
> list.add("Minciuna");
> System.out.println(list);
> }
> }
>
> and got this output : [Razvan, Minciuna]
>
> So, I guess I´m ready for the next step.
>
> Thanks again.
>
> Regards,
> Razvan
>
> On Wed, Sep 13, 2017 at 11:49 AM, Maurizio Cimadamore
> <maurizio.cimadamore at oracle.com
> <mailto:maurizio.cimadamore at oracle.com>> wrote:
>
>
>
> On 13/09/17 06:09, Razvan Minciuna wrote:
>
> Hi,
>
> I am trying to properly configure the development environment
> so I can test
> the amber project.
> This is my first experience with openjdk and I couldn´t find
> enough
> information to get it done.
> So, after downloading the lvti branch from the repository and
> put it into
> the Eclipse I don´t know where to go next.
>
> If you have any documentation so I can read in order to finish
> the process
> so I can start using and testing the repository please let me
> know.
> Thank you.
>
> Hi Razvan,
> So, first of all, you need to clone the repo (which you probably
> already have done - but I will repeat the step anyway):
>
> $ hg clone http://hg.openjdk.java.net/amber/amber
> <http://hg.openjdk.java.net/amber/amber> amber-dev
>
> The above command will fetch the toplevel JDK repo and store it
> locally in the 'amber-dev' folder (you can change name of course
> if you want to). Note also that this will only fetch the
> 'toplevel' repo - JDK is currently organized as a 'forest' of
> repositories, so there's more than one you need to get - you can
> do so like this:
>
> $ sh get_sources.sh
>
> This will fetch the remaining repositories - as some of these are
> big, it might take a while. This second step is temporary, and
> will go away once the repositories will be consolidated (an
> ongoing effort, see [1]).
>
> Now you should have a complete folder structure:
>
> amber-dev
> jaxp
> jaxws
> langtools
> hotspot
> jdk
> corba
> nashorn
> make
> test
> common
>
> So, since the amber repository is organized in branches, you need
> first to decide which branch you want to try out. Let's assume you
> want to try local variable type inference - the name of the branch
> is 'lvti' - so you need to update all JDK repositories to that
> branch, which you can do with this command:
>
> $ sh common/bin/hgforest.sh update lvti
>
> This will update the working version of all repositories to the
> latest 'lvti' changeset. Note that the 'hgforest' command above is
> a little useful helper that allows you to run the same command on
> all the JDK repos in the forest - so, by running the above command
> is like going into every repo subfolder and running 'hg update
> lvti' by hand.
>
> You can confirm that you have updated the repos to the right
> branch by doing the following:
>
> $ hg common/bin/hgforest branch
>
> This should print a list of lines such as
>
> jdk: lvti
> langtools: lvti
> ...
>
> Which indicates the repos are indeed in the right branch.
>
> Now it's time to build the JDK. To build, you first need to run
> the configuration step, which will test whether you have all the
> tools (such as GCC or Clang) and libraries (such as freetype)
> needed in order to build the JDK. You can do so as follows:
>
> $ sh configure --with-boot-jdk=<PATH-TO-JDK-8>
>
> The 'with-boot-jdk' parameter is very important - it's the JDK
> that is used to 'bootstrap' (e.g. to compile an initial version)
> of this JDK. It must point to an existing JDK 8 installation which
> you probably have somewhere in your machine. If not, go here [2]
> and fetch one.
>
> The configure should generate loads of output, but no errors. If
> there's an error it typically means that one (or more) build
> dependencies were not satisfied, so you need to take care of that
> (if you are in a debian-based Linux, this is typically done by
> installing some missing libraries - usually achieved by running
> some 'apt' command).
>
> After configure you are ready to go, really - so you can start the
> build:
>
> $ make images
>
> This will build the entire JDK and create an 'images' folder
> (under build/<arch>/images/jdk). Inside you will find a 'bin'
> folder containing all the usual commands (java, javac, javap, ...)
> which you can start using to try out local variable inference.
>
> This should cover the basics of the process, I expect there will
> be one or two peculiarities in your env that will pop up at some
> point (esp. at the configure step) - if you get stuck please do
> not hesitate to come back here and ask for help. There's also a
> mailing list of build experts (build-dev @ o.j.n) in case things
> get nasty - but let's hope for the best :-)
>
> Cheers
> Maurizio
>
> [1] -
> http://mail.openjdk.java.net/pipermail/jdk10-dev/2017-August/000451.html
> <http://mail.openjdk.java.net/pipermail/jdk10-dev/2017-August/000451.html>
> [2] -
> http://www.oracle.com/technetwork/java/javase/downloads/jdk8-downloads-2133151.html
> <http://www.oracle.com/technetwork/java/javase/downloads/jdk8-downloads-2133151.html>
>
> Regards,
> Razvan
>
>
>
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