Slide 1
Slide 1 text
Heather VanCura
Celebrating 25 Year Anniversary of the
JCP Program
VP Community Engagement and
Chair & Director of the JCP
@heathervc
Ivar Grimstad
Jakarta EE Developer Advocate
Eclipse Foundation
Slide 2
Slide 2 text
https://github.com/ivargrimstad
https://www.linkedin.com/in/ivargrimstad
@[email protected]
ivargrimstad_of
fi
cial
@ivar_grimstad
https://www.threads.net/@ivargrimstad_of
fi
cial
Slide 3
Slide 3 text
No content
Slide 4
Slide 4 text
No content
Slide 5
Slide 5 text
No content
Slide 6
Slide 6 text
Copyright © 2022, Oracle and/or its affiliates
5
28 years of Java
25 years of JCP Program
Java continues to be an
important choice for
enterprises and developers
The Java technology
innovation pipeline has
never been richer
Java 21 available now
Slide 7
Slide 7 text
Copyright © 2022, Oracle and/or its affiliates
6
Performance
Stability
Security
Maintainability
Compatibility
Slide 8
Slide 8 text
Trust
Innovation
Predictability
Moving Java forward
#1 LANGUAGE
for today’s
technology trends
#1 LANGUAGE
in overall development
organizational use
60 BILLION
active JVMS
38 BILLION
cloud-based JVMS
* Source: VDC Research
Slide 9
Slide 9 text
Investing in long term
innovation
Delivering a rich
pipeline of features
Maintain the feeling
of Java
Moving Java forward
AMBER
Improve developer
productivity
PANAMA
Connecting JVM
and
native code
LOOM
Massively scale
lightweight threads
ZGC
Low latency garbage
collector on large heaps
VALHALLA
Better memory density and
performance through value
types
LEYDEN
Reduce start-up time,
warm-up time, and
footprint
Slide 10
Slide 10 text
Java 21 available now
15 JDK Enhancement Proposals (JEPs)
Updates to Project Amber, Project Panama and Project Loom
Thousands of performance, stability and security improvements
JavaFX 21
Slide 11
Slide 11 text
JDK 21 – 2023/09/19
Language Features
• Record Patterns [440]
• Pattern Matching for switch [441]
Language Features Previews
• String Templates Preview [430]
• Unnamed Patterns and Variables Preview
[443]
• Unnamed Classes and Instance Main
Methods Preview [445]
Performance Improvement
• Generational ZGC [439]
Library Improvements
• Virtual Threads [444]
• Sequenced Collections [431]
• Key Encapsulation Mechanism API [452]
Library Improvements Previews and Incubator
• Foreign Function & Memory API 3rd Preview [442]
• Structured Concurrency Preview [453]
• Scoped Values Preview [446]
• Vector API 6th Incubator [448]
Stewardship
• Prepare to Disallow the Dynamic Loading of
Agents [451]
• Deprecate the Windows 32-bit x86 Port for
Removal [449]
Oracle DevLive | Level Up | Java Developer Day Copyright © 2023, Oracle and/or its affiliates
10
Slide 12
Slide 12 text
Issues fixed in JDK 21 per organization
OpenJDK
Slide 13
Slide 13 text
Strength in numbers
365
JAVA CHAMPIONS
360+
JAVA USER GROUPS
10 MILLION
JAVA DEVELOPERS
1.8 MILLION
STACK OVERFLOW
QUESTIONS
28 YEARS
SINCE LAUNCH
1 MILLION
JAVA CERTIFICATIONS
COMPLETED
Trust
Innovation
Predictability
Slide 14
Slide 14 text
/
Executive
Committee
Chair
Program
Management
Office
JSR PARTICIPATION
Contributors
Expert Group
Members
Contributors
Expert Group
Members
The JCP Organization
Specification
Lead
Specification
Lead
JCP MEMBERS
Slide 15
Slide 15 text
Who Are The Members of the JCP?
Corporations
Non-Profit & Open Source
Java User Groups (JUG)
Individual Developers
Oracle DevLive | Level Up | Java Developer Day Copyright © 2023, Oracle and/or its affiliates
16
Slide 16
Slide 16 text
JCP Executive Committee
Oracle DevLive | Level Up | Java Developer Day Copyright © 2023, Oracle and/or its affiliates
17
Slide 17
Slide 17 text
Each Expert Group
must deliver:
• The Specification
• A Reference Implementation
• A Technology Compatibility Kit
Java Specification
Requests (JSRs)
• A JSR is a single version of a Java specification.
• JSRs are led by a community member (the Spec
Lead), with a group of interested members (the
Expert Group) helping with the day-to-day
decisions and work.
• Any JCP member can submit and lead a JSR
JCP Members
• Collaborate on Experts Groups
• Contribute to JSRs
• Vote in Elections
• Comment and review
Collaborative Development - How does is work?
Slide 18
Slide 18 text
Compatibility Triangle
IS THE TCK CORRECT?
DOES THE RI
CONFORM?
Technology
Compatibility
Kit
Reference
Implementation
CAN YOU BUILD
AN IMPLEMENTATION?
IS THE SPECIFICATION
UNAMBIGUOUS?
Specification
Slide 19
Slide 19 text
The Reference Implementations of the Java platform are developed collaboratively and
released under open-source license
Java SE: OpenJDK
Oracle DevLive | Level Up | Java Developer Day Copyright © 2023, Oracle and/or its affiliates
22
Open Source Implementations
Slide 20
Slide 20 text
• Every 2 weeks
• Download and test your applications
• Provide Feedback
• Make adjustments
Early Access Builds
Oracle DevLive | Level Up | Java Developer Day Copyright © 2023, Oracle and/or its affiliates
24
Slide 21
Slide 21 text
Java in Education
Slide 22
Slide 22 text
We need you!
Follow the JCP online:
• Join the JCP:
https://jcp.org/en/participation/me
mbership
• Twitter @jcp_org #JCP,
• Facebook: Java Community Process
• Join Public EC Meetings
Oracle DevLive | Level Up | Java Developer Day Copyright © 2023, Oracle and/or its affiliates
32
Slide 23
Slide 23 text
thank you, ευχαριστώ, shukriya, dziekuje , ந"றி,
tak, tack, grazie, gracias, danke, Благодаря, teşekkür ederim
Shukran, merci, obrigado, bedankt, kiitos, xie xie,ありがとう.
Questions?
Oracle DevLive | Level Up | Java Developer Day Copyright © 2023, Oracle and/or its affiliates
34
Slide 24
Slide 24 text
No content