In preparation for Devoxx 09, I wanted to play a little with Jigsaw.
Thereafter are the few steps I have followed to build it (based on the build readme for Jigsaw but revised each time I build Jigsaw):
1. Create a new Ubuntu VM in VirtualBox
To download VirtualBox go here and to download Ubuntu (12.04 LTS or 13.04) go there.
I used 2Gb of RAM and 16 Gb of disk. (don't forget to install the guest additions and get the updates for Ubuntu)
2. Get and setup Mercurial
Open a console (Applications|Accessories|Terminal), type:
sudo apt-get install mercurial
3. Download and install the current build dependencies for OpenJDK7
sudo apt-get build-dep openjdk-7
4. Download and install the current JDK7
sudo apt-get install openjdk-7-jdk
5. Download and install ccache
This will speed up the build of native parts
sudo apt-get install ccache
6. Get Jigsaw sources
mkdir ~/dev
cd ~/dev/
hg clone http://hg.openjdk.java.net/jigsaw/jigsaw/ jigsaw
cd ~/dev/jigsaw/
chmod u+x get_source.sh
./get_source.sh
7. Set up the environement variablesSource encoding:
export LANG=C
8. Adjustments
2013-07-27, none.
9. Configure
make sure to be in ~/dev/jigsaw and run:
cd ~/dev/jigsaw
bash configure
10. make
time for cooking:
make images
11. post-build
Export a JIG enviroment variable to prefix your java commands and so use Jigsaw rather than the default openjdk:
64 bits vm:
export JIG=~/dev/jigsaw/build/linux-x86_64-normal-server-release/images/jdk-module-image/or
32 bits vm:
export JIG=~/dev/jigsaw/build/linux-x86-normal-server-release/images/jdk-module-image/12. running Jigsaw?
$JIG/bin/java -versionshould return something like:
openjdk version "1.8.0-internal"and
OpenJDK Runtime Environment (build 1.8.0-internal-ludovic_2013_07_27_19_55-b00)
OpenJDK 64-Bit Server VM (build 25.0-b30, mixed mode)
$JIG/bin/jmod list -vshould return something like:
jdk@8-earunning Jigsaw modules:
requires jdk.base@=8-ea
requires public jdk.jre@=8-ea
requires public jdk.tools@=8-ea
...
jdk.base@8-ea
requires local optional jdk.desktop.internal@=8-ea
requires optional jdk.jaxp@=8-ea
requires local optional jdk.tls.internal@=8-ea
requires local optional sun.charsets@=8-ea
requires local optional sun.localedata@=8-ea
requires local optional sun.resources@=8-ea
provides java.base@8
exports
com.sun.nio.file
com.sun.security.auth
com.sun.security.auth.login
java.beans
java.io
java.lang
java.lang.annotation
java.lang.invoke
java.lang.module
...
JPS:
$JIG/bin/java -m jdk.jpsor JConsole:
$JIG/bin/java -m jdk.jconsoleNow is time to play...
