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__NOTOC__ JavaOne is an annual conference first organized in 1996 by
Sun Microsystems Sun Microsystems, Inc., often known as Sun for short, was an American technology company that existed from 1982 to 2010 which developed and sold computers, computer components, software, and information technology services. Sun contributed sig ...
to discuss
Java Java is one of the Greater Sunda Islands in Indonesia. It is bordered by the Indian Ocean to the south and the Java Sea (a part of Pacific Ocean) to the north. With a population of 156.9 million people (including Madura) in mid 2024, proje ...
technologies, primarily among Java developers. It was held in
San Francisco, California San Francisco, officially the City and County of San Francisco, is a commercial, Financial District, San Francisco, financial, and Culture of San Francisco, cultural center of Northern California. With a population of 827,526 residents as of ...
, typically running from a Monday to Thursday in summer months (early on) or in early fall months (later). Technical sessions and Birds of a Feather (BOF) sessions on a variety of Java-related topics were held throughout the week. The show was very popular; for the 1999 edition, there were 20,000 attendees at the
Moscone Center The George R. Moscone Convention Center (), popularly known as the Moscone Center, is the largest convention and exhibition complex in San Francisco, California, United States. The complex consists of three main halls spread out across three bl ...
. For many years, the conference was hosted by Sun executive and Java evangelist John Gage. In 1999, the conference played host to an event called the
Hackathon A hackathon (also known as a hack day, hackfest, datathon or codefest; a portmanteau of '' hacking'' and ''marathon'') is an event where people engage in rapid and collaborative engineering over a relatively short period of time such as 24 or 48 h ...
, a challenge set by Gage. Attendees were to write a program in Java for the new
Palm V Palm V is a personal digital assistant (PDA) by 3Com. Released in 1999 by 3Com, the PDA has an aluminum enclosure containing a Dragonball EZ central processing unit (capable of overclocking to 39 MHz) and two megabytes of memory. Meas ...
using the infrared port to communicate with other Palm users and register the device on the Internet. During the 2008 conference, seventy Moscone Center staff members and three attendees were sickened by an outbreak of
norovirus Norovirus, also known as Norwalk virus and sometimes referred to as the winter vomiting disease, is the most common cause of gastroenteritis. Infection is characterized by non-bloody diarrhea, vomiting, and stomach pain. Fever or headaches may ...
. After the acquisition of Sun by Oracle Corporation in 2010, the conference was held concurrently with Oracle OpenWorld. The conference was moved from Moscone Center to hotels on nearby Mason Street. In some years, one block of Mason was closed and covered with a tent, which formed part of the conference venue. In April 2018, Oracle announced that the JavaOne conference would be discontinued, in favor of a more general programming conference called ''Oracle Code One''. The CodeOne conference ran for two years. In March 2022, Oracle announced that JavaOne would return in October 2022, reclaiming the position the now defunct CodeOne conference once occupied. The conference has moved to Las Vegas from its original location in San Francisco. As announced by Oracle in March 2024, JavaOne was held in March 2025, coinciding with Java's 30th birthday, and the release of Java 24, at Oracle Headquarters in Redwood Shores, CA, moving back to (near) its original location in San Francisco.


Show device

Several of the conferences highlighted a hardware device, typically made available to attendees before it is sold to the general public, or at a steep discount: * 1998: Java ring * 1999:
Palm V Palm V is a personal digital assistant (PDA) by 3Com. Released in 1999 by 3Com, the PDA has an aluminum enclosure containing a Dragonball EZ central processing unit (capable of overclocking to 39 MHz) and two megabytes of memory. Meas ...
* 2002: Sharp Zaurus * 2004: Homepod, a wireless MP3 device from Gloolabs * 2006: SavaJe Jasper S20 phone * 2007: RS Media programmable robot * 2008: Sentilla Perk Kit, Pulse Smartpen, Sony Ericsson K850i * 2009: HTC Diamond with JavaFX pre-installed


CommunityOne

From 2007 to 2009, an associated one-day event, CommunityOne, was held, for the broader free and open-source developer community. In 2009, CommunityOne expanded to New York City (CommunityOne East, March 18–19) and to Oslo, Norway (CommunityOne North, April 15). The third annual CommunityOne in San Francisco took place from June 1–3, 2009, at Moscone Center. Tracks included: * Cloud Platforms – Development and deployment in the cloud * Social and Collaborative Platforms – Social networks and Web 2.0 trends * RIAs and Scripting – Rich Internet Applications, scripting and tools * Web Platforms – Dynamic languages, databases, and Web servers * Server-side Platforms – SOA, tools, application servers, and databases * Mobile Development – Mobile platforms, devices, tools and application development * Operating Systems and Infrastructure – Performance, virtualization, and native development * Free and Open – Open-source projects, business models, and trends CommunityOne was discontinued after the acquisition of Sun by Oracle.


See also


References


External links

*
Moscone CenterJavaOne 2009 Blog Coverage
{{Java (Sun) Java platform Computer conferences Recurring events established in 1996 Recurring events established in 2007 Sun Microsystems