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{{refimprove|date=July 2008}}'''Blackdown Java''' was a [[Linux]] [[porting|port]] of [[Sun Microsystems]]'s [[Java virtual machine]], to [[Linux]]developed by a group of volunteers led by [[Juergen Kreileder, Steve Byrne, and Karl Asha]], and Juergenincluded Kreiledera team of volunteers from around the globe.<ref>{{cite web
| title = Java Linux Contact Information
| url = http://www.blackdown.org/java-linux/java-linux-contact.html
| accessdate = 2009-06-15
| archiveurl = httphttps://web.archive.org/web/20070807032743/http://www.blackdown.org/java-linux/java-linux-contact.html
| archivedate = 2007-08-1907 }}</ref> ItThe predatedfirst Sun'sversion, official Linux port1.0.2, andwas supportedreleased Linuxin onOctober [[List of instruction sets|architectures]] that the official version did not1996, including [[SPARC]] and [[PowerPC]].<ref>{{cite web
| title = Java -Linux HomepageLatest Information▼
| url = http://www.blackdown.org/java-linux/Information.html▼
| accessdate = 20102012-1001-2516▼
| archiveurl = httphttps://web.archive.org/web/2007091204084419961019171456/http://www.blackdown.org/java-linux/Information.html▼
| archivedate = 20071996-0910-1219▼
}}</ref> predating Sun's official Linux port.
 
Blackdown Java supported Linux on [[Instruction set|architectures]] that the official version did not, including [[SPARC]] and [[PowerPC]].<ref>{{cite web
| title = Java Platform 2 Version 1.3.x for Linux
| url = http://www.blackdown.org/java-linux/java2-status/jdk1.3-status.html
| accessdate = 2009-06-15
| archiveurl = httphttps://web.archive.org/web/20070811200047/http://www.blackdown.org/java-linux/java2-status/jdk1.3-status.html
| archivedate = 2007-08-11 August 2007
| url-status = dead
}}</ref> At its close, Blackdown had released J2SE versions 1.4.2 on i386 and AMD64, 1.4.1 on SPARC, and 1.3.1 on PowerPC<ref>{{cite web▼
| df = dmy-all
}}</ref> The Blackdown project ended in August 2007, after Sun released an open source version of the [[HotSpot (virtual machine)|HotSpot]] JVM as part of [[OpenJDK]]; OpenJDK is available under the free [[GNU General Public License]].<ref>{{cite web
|last | last = Malinovich▼
|first = Alex
|title | title = Blackdown Java Retires▼
|url | url = http://www.the-love-shack.net/2007/08/30/blackdown-java-retires/▼
|accessdate = 2009-06-15
|archive-url = https://web.archive.org/web/20090107065800/http://www.the-love-shack.net/2007/08/30/blackdown-java-retires/
|archive-date = 7 January 2009
|url-status = dead
|df = dmy-all
}}</ref><ref>{{cite web▼
| title = Java Linux Homepage
| url = http://www.blackdown.org/
| accessdate = 2009-06-15▼
| archiveurl = https://web.archive.org/web/20070912040844/http://www.blackdown.org/
| archivedate = 2007-09-12
}}</ref><ref>{{ cite web▼
| url= http://mail.openjdk.java.net/pipermail/announce/2007-May.txt | title = Open JDK is here!
| publisher=Sun Microsystems
| date = 8 May 2007
| accessdate=9 May 2007}}</ref> The Java software itself still exists on many mirrors.▼
 
▲}}</ref> At its close, Blackdown had releasedsupported J2SE versions 1.4.2 on i386 and AMD64, 1.4.1 on SPARC, and 1.3.1 on PowerPC.<ref>{{cite web
| title = Java Platform 2 for Linux: Status and Information
| url = http://www.blackdown.org/java-linux/java2-status/index.html
| accessdate = 2009-06-15
| archiveurl = httphttps://web.archive.org/web/20070809152807/http://www.blackdown.org/java-linux/java2-status/index.html
| archivedate = 9 August 2007-08-09
| url-status = dead
▲}}</ref><ref>{{cite web
| df = dmy-all
}}</ref><ref>{{cite web▼
| title = Java 2 SE 1.4.2-03 Release Notes
| url = http://www.blackdown.org/java-linux/java2-status/README-142-03
| accessdate = 2009-06-15
| archiveurl = httphttps://web.archive.org/web/20070807094453/http://www.blackdown.org/java-linux/java2-status/README-142-03
| archivedate = 7 August 2007-08-07
| url-status = dead
▲}}</ref><ref>{{cite web
| df = dmy-all
}}</ref><ref>{{cite web
| title = Java Platform 2 Version 1.3.x for Linux
| url = http://www.blackdown.org/java-linux/java2-status/jdk1.3-status.html
| accessdate = 2009-06-15
| archiveurl = httphttps://web.archive.org/web/20070811200047/http://www.blackdown.org/java-linux/java2-status/jdk1.3-status.html
| archivedate = 2007-08-11 August 2007
| url-status = dead
}}</ref> Work on J2SE 1.5.x for x86, AMD64, SPARC, and PowerPC was noted as being underway, but no releases were apparent on the main website.<ref>{{cite web▼
| df = dmy-all
▲ }}</ref> Work on J2SE 1.5.x support for x86, AMD64, SPARC, and PowerPC washad notedbeen as being underwayannounced, but no releases were apparent on thewas mainnever websitereleased.<ref>{{cite web
| title = Java Platform 2 Version 1.5.x for Linux
| url = http://www.blackdown.org/java-linux/java2-status/j2se1.5-status.html
| accessdate = 2009-06-15
| archiveurl = httphttps://web.archive.org/web/20070627021922/http://www.blackdown.org/java-linux/java2-status/j2se1.5-status.html
| archivedate = 2007-06-27 June 2007
| url-status = dead
}}</ref>▼
| df = dmy-all
▲ }}</ref>
 
In [[1999]] Sun Microsystems hadand to[[Inprise]] publiclyannounced apologizea toport theof BlackdownJava to developersLinux.<ref>{{cite web
| title = Sun apologizes to developers of Java on Linux▼
| url = http://edition.cnn.com/1999/TECH/computing/12/10/sun.apology.idg/index.html
▲ | accessdate = 2010-10-25
}}</ref>. Days before the apology Sun, together with [[Inprise]], had announced<ref>{{cite web
| title = PRNewswire: Inprise Collaborates With Sun...on...Java(TM) 2 Platform For...Linux...
| url = http://www.linuxtoday.com/news_story.php3?ltsn=1999-12-07-047-04-PR
| accessdate = 2010-10-25
}}</ref> aThe port ofwas Javabased toon LinuxBlackdown work, shunningbut Blackdown andthe Blackdown's Linuxteam portingwas worknot andrecognized notor givinggiven themany credit. Thefor Sun/Inprisethe port,release. however,After wassome based on Blackdown workcontroversy,<ref>{{cite web
| title = LinuxGrrls: New JDK for Linux snubs Blackdown developers
| url = http://www.linuxtoday.com/news_story.php3?ltsn=1999-12-08-010-04-OP
| accessdate = 2010-10-25
|date = 1999-12-08
}}</ref>. The incident revealed that there were long standing problems between Sun and Blackdown.▼
}}</ref> Sun publicly apologized to the Blackdown developers.<ref>{{cite news
| last1 = Orenstein | first1 = David
| date = 1999-12-08 | df = dmy
| url = https://www.computerworld.com/home/news.nsf/all/9912083sunlinux
▲ | title = Sun apologizes to developers of Java on Linux
| work = [[Computerworld]]
| archiveurl = https://web.archive.org/web/20001208114600/https://www.computerworld.com/home/news.nsf/all/9912083sunlinux <!-- see also http://transcripts.cnn.com/1999/TECH/computing/12/10/sun.apology.idg/index.html where date and lead paragraph are different -->
| archivedate = 2000-12-08
▲}}</ref>. The incident revealed that there were long standing problems between Sun and Blackdown.
 
Despite widespread confusion, Blackdown was neither [[free software]] nor [[open-source software]].; Itthis was thedue defaultto Javalicensing inrestrictions [[Gentoofrom Linux]]Sun andMicrosystems. many other distributions, because theIts binary redistribution policy allowed it to be pre-installed or distributedincluded throughwith thatmany distribution's[[Linux packagedistributions]] (e.g., [[Gentoo Linux]]){{citation managementneeded|date=December system2011}}, whereas at the time, Sun Java's binary redistribution policy did not. Since Java 5, the Operating System Distributor License for Java (DLJ) met many Linux distributions' requirements, lessening the demand for the older Blackdown JVM.
 
The Blackdown team pioneered Sun's involvement with external, volunteer efforts. Steve Byrne, who was working at Sun at the time, worked with Sun legal to establish an agreement to license the Java test suite for a few Blackdown participants at no cost, and this was used to certify the Blackdown Java implementation as being 100% Java compatible.
Since Java 5, the Operating System Distributor License for Java (DLJ) meets many Linux distributions' requirements, so it is now the default for at least [[Gentoo Linux]], unless you specify Java 1.4 or earlier, for which the DLJ does not apply.
 
The Blackdown team received recognition at the JavaOne conference in 1998 for the work that the team had been doing.
The Blackdown project ended in August 2007.<ref>{{cite web
▲ | last = Malinovich
| first = Alex
▲ | title = Blackdown Java Retires
▲ | url = http://www.the-love-shack.net/2007/08/30/blackdown-java-retires/
▲ | accessdate = 2009-06-15
▲}}</ref><ref>{{cite web
▲ | title = Java Linux Homepage
▲ | url = http://www.blackdown.org/
| accessdate = 2009-06-15
▲ | archiveurl = http://web.archive.org/web/20070912040844/http://www.blackdown.org/
▲ | archivedate = 2007-09-12
▲}}</ref> The Java software itself still exists on many mirrors.
 
==Notes==
{{Reflist}}
 
{{Java (Sun)}}
==External links==
*[https://jdk-distros.dev.java.net/ jdk-distros: community collaboration with the DLJ] - The official site for the DLJ.
 
[[Category:Discontinued Java virtual machines]]
 
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