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How is JDK / JVM built ?
Back then and now...!
@adoptopenjdk
Mani Sarkar (@theNeomatrix369)
Daniel Bryant (@danielbryantuk)
London Java Community
Java
Mani
@theNeomatrix369
● LJC Associate
● Adopt OpenJDK and JSR (JCP Member)
● blog: http://neomatrix369.wordpress.com
● github: http://github.com/neomatrix369
● bitbucket: https://bitbucket.org/neomatrix369
Avatar: courtesy of Recworks: Dan Smallman @dsrecworks
About me
Daniel
@danielbryantuk
● Principal Consultant at OpenCredo
● LJC Associate
● blog: https://taidevcouk.wordpress.com
● Adopt OpenJDK and JSR
● InfoQ Editor and DZone MVB
About me
Agenda
● Get Ready...Steady...Go...all in parallel
● How is JDK / JVM built ? Adopt OpenJDK is
your answer ! - a quick glance
● Hands-on: Building natively or cloud
● Hands-on: Building inside a VM
● Hands-on: Building using vagrant
● Hands-on: Building using docker
● Important news: Java 9 modularisation
● Q & A
Countdown to start...
Ready, steady, and go...
● Linux
○ Java 7
○ Java 8
○ VirtualBox
○ Vagrant
○ Docker
Do we have everything we
need ?
● Windows
○ Java 7
○ Java 8
○ VirtualBox
○ Vagrant
○ Boot2Docker
○ Docker
○ Docker env.
variables are all
set ?
● MacOS
○ Java 7
○ Java 8
○ VirtualBox
○ Vagrant
○ Boot2Docker
○ Docker
○ Docker env.
variables are
all set ?
Where do we get them from ?
Pre-hackday
http://bit.ly/1JRZg7r
Where do we get them from ?
Additional pre-hackday tasks
http://bit.ly/1MUwNhd
● Built OpenJDK natively
or on the cloud ?
○ Successful ?
○ Unsuccessful ?
Is everything working as
expected ?
● Downloaded VM or docker
images ?
○ Working ?
■ Successful builds ?
■ Broken builds ?
○ Not working ?
■ Debugging ?
■ Not debugging ?
Is everything working as
expected ?
● Built VM or docker images ?
○ Working ?
■ Successful builds ?
■ Broken builds ?
○ Not working ?
■ Debugging ?
■ Not debugging ?
Is everything working as
expected ?
● OpenJDK builds in VMs or
docker containers ?
○ Working ?
■ Successful ?
■ Unsuccessful ?
○ Not working ?
■ Debugging ?
■ Not debugging ?
Is everything working as
expected ?
What do we do now ?
Setup
http://bit.ly/1KReavj
What do we do now ?
Navigate
http://bit.ly/1GH6trM
How is JDK / JVM built ?
Adopt OpenJDK is your
answer !
Java
http://bit.ly/1dFoObi
Hands-on: Building natively
or in the Cloud
http://bit.ly/1QCpu3h
Hands-on: Building inside a VM
http://bit.ly/1GcxKf5
Hands-on:
Building using VAGRANT
http://bit.ly/1QCq6Gc
Homework: improve the
existing VAGRANT script
http://bit.ly/1SlR8yN
Hands-on: Building using Docker
Homework: Improve the existing
Docker script
Lots of changes in OpenJDK9, primarily
due to Jigsaw - modularisation of Java itself!
OpenJDK9 ?
Breaking changes !
OpenJDK9 ?
But not the end
of the world !
OpenJDK9 ?
Test Outreach: Testing Java Early
http://bit.ly/1QYWLjT
OpenJDK9 ?
What will you ask others ?
Q: How to get started ?
A: Adopt OpenJDK Getting Started Kit
http://bit.ly/1NUkPWw
What next ?
Adoption Discuss mailing list
http://mail.openjdk.java.net/mailman/listinfo/adoption-discuss
mailto: adoption-discuss@openjdk.java.net
LJC mailing list
http://www.meetup.com/Londonjavacommunity/messages/
mailto: ljc-list@meetup.com
Q & A
Keep them coming !
Let’s change the Java ecosystem, together!
Daniel Bryant @danielbryantuk
Mani Sarkar @theNeomatrix369
Follow us on twitter
@adoptopenjdk
Write to us
adopt-openjdk@googlegroups.com
adoption-discuss@openjdk.java.net
Credits & Resources
http://bit.ly/1yGYFSd
See Resources section at the bottom of the page

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How is Java / JVM built ? Back then and now...

  • 1. How is JDK / JVM built ? Back then and now...! @adoptopenjdk Mani Sarkar (@theNeomatrix369) Daniel Bryant (@danielbryantuk) London Java Community Java
  • 2. Mani @theNeomatrix369 ● LJC Associate ● Adopt OpenJDK and JSR (JCP Member) ● blog: http://neomatrix369.wordpress.com ● github: http://github.com/neomatrix369 ● bitbucket: https://bitbucket.org/neomatrix369 Avatar: courtesy of Recworks: Dan Smallman @dsrecworks About me
  • 3. Daniel @danielbryantuk ● Principal Consultant at OpenCredo ● LJC Associate ● blog: https://taidevcouk.wordpress.com ● Adopt OpenJDK and JSR ● InfoQ Editor and DZone MVB About me
  • 4. Agenda ● Get Ready...Steady...Go...all in parallel ● How is JDK / JVM built ? Adopt OpenJDK is your answer ! - a quick glance ● Hands-on: Building natively or cloud ● Hands-on: Building inside a VM ● Hands-on: Building using vagrant ● Hands-on: Building using docker ● Important news: Java 9 modularisation ● Q & A
  • 5. Countdown to start... Ready, steady, and go...
  • 6. ● Linux ○ Java 7 ○ Java 8 ○ VirtualBox ○ Vagrant ○ Docker Do we have everything we need ? ● Windows ○ Java 7 ○ Java 8 ○ VirtualBox ○ Vagrant ○ Boot2Docker ○ Docker ○ Docker env. variables are all set ? ● MacOS ○ Java 7 ○ Java 8 ○ VirtualBox ○ Vagrant ○ Boot2Docker ○ Docker ○ Docker env. variables are all set ?
  • 7. Where do we get them from ? Pre-hackday http://bit.ly/1JRZg7r
  • 8. Where do we get them from ? Additional pre-hackday tasks http://bit.ly/1MUwNhd
  • 9. ● Built OpenJDK natively or on the cloud ? ○ Successful ? ○ Unsuccessful ? Is everything working as expected ?
  • 10. ● Downloaded VM or docker images ? ○ Working ? ■ Successful builds ? ■ Broken builds ? ○ Not working ? ■ Debugging ? ■ Not debugging ? Is everything working as expected ?
  • 11. ● Built VM or docker images ? ○ Working ? ■ Successful builds ? ■ Broken builds ? ○ Not working ? ■ Debugging ? ■ Not debugging ? Is everything working as expected ?
  • 12. ● OpenJDK builds in VMs or docker containers ? ○ Working ? ■ Successful ? ■ Unsuccessful ? ○ Not working ? ■ Debugging ? ■ Not debugging ? Is everything working as expected ?
  • 13. What do we do now ? Setup http://bit.ly/1KReavj
  • 14. What do we do now ? Navigate http://bit.ly/1GH6trM
  • 15.
  • 16. How is JDK / JVM built ? Adopt OpenJDK is your answer ! Java http://bit.ly/1dFoObi
  • 17. Hands-on: Building natively or in the Cloud http://bit.ly/1QCpu3h
  • 18. Hands-on: Building inside a VM http://bit.ly/1GcxKf5
  • 22. Homework: Improve the existing Docker script
  • 23. Lots of changes in OpenJDK9, primarily due to Jigsaw - modularisation of Java itself! OpenJDK9 ?
  • 25. But not the end of the world ! OpenJDK9 ?
  • 26. Test Outreach: Testing Java Early http://bit.ly/1QYWLjT OpenJDK9 ?
  • 27. What will you ask others ? Q: How to get started ? A: Adopt OpenJDK Getting Started Kit http://bit.ly/1NUkPWw
  • 28. What next ? Adoption Discuss mailing list http://mail.openjdk.java.net/mailman/listinfo/adoption-discuss mailto: adoption-discuss@openjdk.java.net LJC mailing list http://www.meetup.com/Londonjavacommunity/messages/ mailto: ljc-list@meetup.com
  • 29. Q & A Keep them coming !
  • 30. Let’s change the Java ecosystem, together! Daniel Bryant @danielbryantuk Mani Sarkar @theNeomatrix369 Follow us on twitter @adoptopenjdk Write to us adopt-openjdk@googlegroups.com adoption-discuss@openjdk.java.net
  • 31. Credits & Resources http://bit.ly/1yGYFSd See Resources section at the bottom of the page