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Kohsuke Kawaguchi

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Kohsuke Kawaguchi

Kohsuke Kawaguchi (Japanese: 川口 耕介, Hepburn: Kawaguchi Kōsuke, born 1977)[1] is a computer programmer who is best known as the creator of the Jenkins software project.[2] While working at Sun Microsystems, he was the primary developer of the Hudson project.[3] He is also the recipient of the 2011 O'Reilly Open Source Award for his work on the Jenkins project.[4]


He worked at Sun Microsystems on numerous projects for the Java, XML and Solaris ecosystems, notably as the primary developer for Hudson and for Multi Schema Validator. Hudson was created in summer of 2004 and first released in February 2005.[5]

When Oracle bought Sun, an issue arose in the Hudson community with respect to the infrastructure used, which grew to encompass questions over the stewardship and control by Oracle.[6] Negotiations between the principal project contributors and Oracle took place, and although there were many areas of agreement a key sticking point was the trademarked name "Hudson",[7] after Oracle claimed the right to the name and applied for a trademark in December 2010.[8] As a result, on January 11, 2011, a call for votes was made to change the project name from "Hudson" to "Jenkins".[9] The proposal was overwhelmingly approved by community vote on January 29, 2011, creating the Jenkins project.[10][11] On February 1, 2011, Oracle said that they intended to continue development of Hudson, and considered Jenkins a fork rather than a rename.[12] Jenkins and Hudson therefore continue as two independent projects, each claiming the other is the fork.

Kawaguchi founded InfraDNA, Inc. in April 2010, which provided support and service for continuous integration using Hudson. On November 2010, InfraDNA merged with CloudBees.[13] In 2011, he received Google-O'Reilly Open Source Award for his work on the Hudson/Jenkins projects.

In 2014, Kawaguchi became the Chief Technology Officer for CloudBees.[14]

In January 2020, Kawaguchi transitioned to a CloudBees adviser and stepped away from Jenkins and CloudBees[15] to focus on a new startup, Launchable Inc.

See also[edit]


  1. ^ ""情報科学科の先輩に聞く!"". University of Tokyo (in Japanese). Retrieved 29 May 2020.
  2. ^ "Jenkins Founder Kohsuke Kawaguchi Talks". Retrieved 13 May 2016.
  3. ^ "Why are you still not using Hudson?". Retrieved 13 May 2016.
  4. ^ "O'Reilly Open Source Awards 2011". Retrieved 13 May 2016.
  5. ^ Kawaguchi, Kohsuke. "Hudson" (PDF). Archived from the original (PDF) on 1 July 2014. Retrieved 28 June 2013.
  6. ^ "Who's driving this thing?". Archived from the original on March 12, 2013. Retrieved January 31, 2011.
  7. ^ "Hudson Process Discussion Summary". Archived from the original on June 8, 2013. Retrieved January 31, 2011.
  8. ^ Blewitt, Alex. "Hudson Renames to Jenkins". InfoQ. Retrieved 8 February 2011.
  9. ^ Bayer, Andrew (January 11, 2011). "Hudson's future". Jenkins CI: A Jenkins community resource. Retrieved January 11, 2011.
  10. ^ Bayer, Andrew (January 29, 2011). "Rename Vote Results". Hudson-dev Google Group. Archived from the original on January 31, 2011. Retrieved January 29, 2011. Alt URL Archived 2011-02-01 at the Wayback Machine
  11. ^ Bayer, Andrew (January 29, 2011). "Jenkins!". Retrieved January 30, 2011.
  12. ^ "The Future of Hudson". Hudson-dev mailing list. Archived from the original on 2011-02-05. Retrieved 2011-02-02.
  13. ^ "InfraDNA and CloudBees Joining Forces".
  14. ^ "People on the Move". Boston Business Journal. Retrieved 31 January 2014.
  15. ^ "A new chapter for Kohsuke". A new chapter for Kohsuke. Retrieved 2020-04-12.

External links[edit]