Welcome!

Java IoT Authors: Elizabeth White, Stackify Blog, APM Blog, Liz McMillan, Yeshim Deniz

Related Topics: Java IoT

Java IoT: Article

The JCP and the OpenJDK Community

The JCP and the OpenJDK Community

At the JavaOne conference earlier in May, Sun launched the OpenJDK project (http://openjdk.java.net). The OpenJDK project is Sun's Java SE implementation under the GPL license. While portions of the project, such as the compiler and Hotspot, were released at an earlier time, at the JavaOne conference all the class libraries and other source code that together making up JDK7 were launched. At the same time, Sun also announced an interim Governance Board for OpenJDK. This board is comprised of two people from Sun and three from the community. Mark Reinhold (chief engineer for Java SE) and Simon Phipps (Sun's Chief Open Source Officer) both from Sun, and Dalibor Topic (of GNU Classpath and Kaffe.org fame), Doug Lea (professor at SUNY), and Fabiane Nardon (CTO of VIDATIS and JavaTools community manager) have graciously accepted invitations to serve on the interim board. The key task before them is to write a constitution for the OpenJDK community, have it ratified by the membership, and then put their seats up for re-election.

An oft-asked question during the conference was about any relationship between this Governance Board and the JCP Executive Committees and also between projects at OpenJDK and the JCP's JSRs. It occurred to me that others, in addition to the conference attendees, would have these questions and so I would like to demystify this here.

The role of the JCP was and is for the industry to develop and agree upon Java specifications. The OpenJDK project is Sun's open source project for their implementation of the Java SE and related specifications as they are produced by the JCP. The JCP Executive Committee (EC) votes to approve proposals for standardization. The OpenJDK Governance Board is the body of ultimate resolution for OpenJDK and the maintainer of the OpenJDK Constitution.

The OpenJDK Constitution will describe how the OpenJDK community makes decisions, who is considered a member, how projects are started, how contributions are made, and how these are accepted. In short, it will describe how the OpenJDK community operates. The (interim) Governance Board does not make technical decisions. That is done by the projects and groups in the OpenJDK community. The Governance Board does not decide on Java specifications. The JSR expert groups in the JCP work to define the draft and final Java specifications. The JCP Executive Committee then votes to formally approve these specifications.

The JCP's Executive Committees are intended to have broad industry and geographical representation. The EC members formal voting on JSR proposals thus lends industry credibility to the standardization efforts of the Java community. The OpenJDK community is a meritocracy in which developers collaborate with Sun engineers on the development of the JDK. As new participants in this community gain experience and reputation, their responsibilities and abilities will also increase, for example, taking up the role of committer or as project lead for a particular port of the JDK code base. I would expect that this rise in fame and responsibility may then also lead such individuals to be elected by the membership to the Governance Board.

While the OpenJDK Governance Board and the JCP Executive Committees have very distinct, and non-overlapping, roles I do expect there to be practical interaction and collaboration between the two communities. For example, I expect that most Java SE Spec Leads (i.e., leaders of JSRs that feed into SE or JDK releases) to be project leaders and code committers in the OpenJDK community, and probably a similar overlap between many key expert group members in the JCP and code contributors to the OpenJDK community. I also expect that the openness and transparency of the JDK source code under the GPL license will lead developers to provide feedback on the (draft) specifications that the code is based on, which will have a positive quality and progress impact on the JSRs in the JCP.

The interim Governance Board is just starting to draft the Constitution, and rough estimates are it will take 6-9 months to complete the effort and have the document ratified. In the meantime the OpenJDK community is open for business. Sun has established a set of guidelines for the community on how to start projects and make contributions while the interim board does its work. You can find links to the work of the board, these guidelines, and the OpenJDK Charter on the OpenJDK Web site at http://openjdk.java.net.

More Stories By Onno Kluyt

Onno Kluyt is the chairperson of the JCP Program Management Office, Sun Microsystems.

Comments (0)

Share your thoughts on this story.

Add your comment
You must be signed in to add a comment. Sign-in | Register

In accordance with our Comment Policy, we encourage comments that are on topic, relevant and to-the-point. We will remove comments that include profanity, personal attacks, racial slurs, threats of violence, or other inappropriate material that violates our Terms and Conditions, and will block users who make repeated violations. We ask all readers to expect diversity of opinion and to treat one another with dignity and respect.


@ThingsExpo Stories
"IBM is really all in on blockchain. We take a look at sort of the history of blockchain ledger technologies. It started out with bitcoin, Ethereum, and IBM evaluated these particular blockchain technologies and found they were anonymous and permissionless and that many companies were looking for permissioned blockchain," stated René Bostic, Technical VP of the IBM Cloud Unit in North America, in this SYS-CON.tv interview at 21st Cloud Expo, held Oct 31 – Nov 2, 2017, at the Santa Clara Conventi...
In his session at 21st Cloud Expo, Carl J. Levine, Senior Technical Evangelist for NS1, will objectively discuss how DNS is used to solve Digital Transformation challenges in large SaaS applications, CDNs, AdTech platforms, and other demanding use cases. Carl J. Levine is the Senior Technical Evangelist for NS1. A veteran of the Internet Infrastructure space, he has over a decade of experience with startups, networking protocols and Internet infrastructure, combined with the unique ability to it...
22nd International Cloud Expo, taking place June 5-7, 2018, at the Javits Center in New York City, NY, and co-located with the 1st DXWorld Expo will feature technical sessions from a rock star conference faculty and the leading industry players in the world. Cloud computing is now being embraced by a majority of enterprises of all sizes. Yesterday's debate about public vs. private has transformed into the reality of hybrid cloud: a recent survey shows that 74% of enterprises have a hybrid cloud ...
"Cloud Academy is an enterprise training platform for the cloud, specifically public clouds. We offer guided learning experiences on AWS, Azure, Google Cloud and all the surrounding methodologies and technologies that you need to know and your teams need to know in order to leverage the full benefits of the cloud," explained Alex Brower, VP of Marketing at Cloud Academy, in this SYS-CON.tv interview at 21st Cloud Expo, held Oct 31 – Nov 2, 2017, at the Santa Clara Convention Center in Santa Clar...
Gemini is Yahoo’s native and search advertising platform. To ensure the quality of a complex distributed system that spans multiple products and components and across various desktop websites and mobile app and web experiences – both Yahoo owned and operated and third-party syndication (supply), with complex interaction with more than a billion users and numerous advertisers globally (demand) – it becomes imperative to automate a set of end-to-end tests 24x7 to detect bugs and regression. In th...
Widespread fragmentation is stalling the growth of the IIoT and making it difficult for partners to work together. The number of software platforms, apps, hardware and connectivity standards is creating paralysis among businesses that are afraid of being locked into a solution. EdgeX Foundry is unifying the community around a common IoT edge framework and an ecosystem of interoperable components.
"MobiDev is a software development company and we do complex, custom software development for everybody from entrepreneurs to large enterprises," explained Alan Winters, U.S. Head of Business Development at MobiDev, in this SYS-CON.tv interview at 21st Cloud Expo, held Oct 31 – Nov 2, 2017, at the Santa Clara Convention Center in Santa Clara, CA.
Large industrial manufacturing organizations are adopting the agile principles of cloud software companies. The industrial manufacturing development process has not scaled over time. Now that design CAD teams are geographically distributed, centralizing their work is key. With large multi-gigabyte projects, outdated tools have stifled industrial team agility, time-to-market milestones, and impacted P&L stakeholders.
"Space Monkey by Vivent Smart Home is a product that is a distributed cloud-based edge storage network. Vivent Smart Home, our parent company, is a smart home provider that places a lot of hard drives across homes in North America," explained JT Olds, Director of Engineering, and Brandon Crowfeather, Product Manager, at Vivint Smart Home, in this SYS-CON.tv interview at @ThingsExpo, held Oct 31 – Nov 2, 2017, at the Santa Clara Convention Center in Santa Clara, CA.
"Akvelon is a software development company and we also provide consultancy services to folks who are looking to scale or accelerate their engineering roadmaps," explained Jeremiah Mothersell, Marketing Manager at Akvelon, in this SYS-CON.tv interview at 21st Cloud Expo, held Oct 31 – Nov 2, 2017, at the Santa Clara Convention Center in Santa Clara, CA.
Coca-Cola’s Google powered digital signage system lays the groundwork for a more valuable connection between Coke and its customers. Digital signs pair software with high-resolution displays so that a message can be changed instantly based on what the operator wants to communicate or sell. In their Day 3 Keynote at 21st Cloud Expo, Greg Chambers, Global Group Director, Digital Innovation, Coca-Cola, and Vidya Nagarajan, a Senior Product Manager at Google, discussed how from store operations and ...
"There's plenty of bandwidth out there but it's never in the right place. So what Cedexis does is uses data to work out the best pathways to get data from the origin to the person who wants to get it," explained Simon Jones, Evangelist and Head of Marketing at Cedexis, in this SYS-CON.tv interview at 21st Cloud Expo, held Oct 31 – Nov 2, 2017, at the Santa Clara Convention Center in Santa Clara, CA.
SYS-CON Events announced today that CrowdReviews.com has been named “Media Sponsor” of SYS-CON's 22nd International Cloud Expo, which will take place on June 5–7, 2018, at the Javits Center in New York City, NY. CrowdReviews.com is a transparent online platform for determining which products and services are the best based on the opinion of the crowd. The crowd consists of Internet users that have experienced products and services first-hand and have an interest in letting other potential buye...
SYS-CON Events announced today that Telecom Reseller has been named “Media Sponsor” of SYS-CON's 22nd International Cloud Expo, which will take place on June 5-7, 2018, at the Javits Center in New York, NY. Telecom Reseller reports on Unified Communications, UCaaS, BPaaS for enterprise and SMBs. They report extensively on both customer premises based solutions such as IP-PBX as well as cloud based and hosted platforms.
It is of utmost importance for the future success of WebRTC to ensure that interoperability is operational between web browsers and any WebRTC-compliant client. To be guaranteed as operational and effective, interoperability must be tested extensively by establishing WebRTC data and media connections between different web browsers running on different devices and operating systems. In his session at WebRTC Summit at @ThingsExpo, Dr. Alex Gouaillard, CEO and Founder of CoSMo Software, presented ...
WebRTC is great technology to build your own communication tools. It will be even more exciting experience it with advanced devices, such as a 360 Camera, 360 microphone, and a depth sensor camera. In his session at @ThingsExpo, Masashi Ganeko, a manager at INFOCOM Corporation, introduced two experimental projects from his team and what they learned from them. "Shotoku Tamago" uses the robot audition software HARK to track speakers in 360 video of a remote party. "Virtual Teleport" uses a multip...
A strange thing is happening along the way to the Internet of Things, namely far too many devices to work with and manage. It has become clear that we'll need much higher efficiency user experiences that can allow us to more easily and scalably work with the thousands of devices that will soon be in each of our lives. Enter the conversational interface revolution, combining bots we can literally talk with, gesture to, and even direct with our thoughts, with embedded artificial intelligence, whic...
SYS-CON Events announced today that Evatronix will exhibit at SYS-CON's 21st International Cloud Expo®, which will take place on Oct 31 – Nov 2, 2017, at the Santa Clara Convention Center in Santa Clara, CA. Evatronix SA offers comprehensive solutions in the design and implementation of electronic systems, in CAD / CAM deployment, and also is a designer and manufacturer of advanced 3D scanners for professional applications.
Leading companies, from the Global Fortune 500 to the smallest companies, are adopting hybrid cloud as the path to business advantage. Hybrid cloud depends on cloud services and on-premises infrastructure working in unison. Successful implementations require new levels of data mobility, enabled by an automated and seamless flow across on-premises and cloud resources. In his general session at 21st Cloud Expo, Greg Tevis, an IBM Storage Software Technical Strategist and Customer Solution Architec...
To get the most out of their data, successful companies are not focusing on queries and data lakes, they are actively integrating analytics into their operations with a data-first application development approach. Real-time adjustments to improve revenues, reduce costs, or mitigate risk rely on applications that minimize latency on a variety of data sources. In his session at @BigDataExpo, Jack Norris, Senior Vice President, Data and Applications at MapR Technologies, reviewed best practices to ...