Blackdown Java: Difference between revisions

Revision as of 08:36, 26 October 2010

Revision as of 13:26, 26 October 2010

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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 [[Karl Asha]] and Juergen Kreileder.<ref>{{cite web

| title = Java Linux Contact Information

| url = http://www.blackdown.org/java-linux/java-linux-contact.html

| accessdate = 2009-06-15

| archiveurl = http://web.archive.org/web/20070807032743/http://www.blackdown.org/java-linux/java-linux-contact.html

| archivedate = 2007-08-19 }}</ref> It predated Sun's official Linux port, and supported Linux on [[ListInstruction of instruction setsset|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

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| archiveurl = http://web.archive.org/web/20070811200047/www.blackdown.org/java-linux/java2-status/jdk1.3-status.html

| archivedate = 2007-08-11

}}</ref> AtThe itsBlackdown close,project Blackdownended hadin releasedAugust J2SE2007, versionsafter 1.4.2Sun onreleased i386an andopen AMD64,source 1.4.1version onof SPARC,the and[[HotSpot]] 1JVM.3.1 on PowerPC<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.

At its close, Blackdown supported 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

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| archiveurl = http://web.archive.org/web/20070811200047/www.blackdown.org/java-linux/java2-status/jdk1.3-status.html

| archivedate = 2007-08-11

}}</ref> Work on J2SE 1.5.x for x86, AMD64, SPARC, and PowerPC washad notedbeen as being underwayannounced, but no releases were apparent on the 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

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}}</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

}}</ref> Sun publicly apologized to the Blackdown developers.<ref>{{cite web

}}</ref>. The incident revealed that there were long standing problems between Sun and Blackdown.

| 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>. 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]]. It was the default Java in [[Gentoo Linux]] and many other distributions, because the's binary redistribution policy allowed it to be pre-installed or distributed throughin thatmany distribution's[[Linux packagedistributions]] management(e.g., system[[Gentoo Linux]]), whereas at the time, Sun Java's binary redistribution policy did not. Since Java 5, the Operating System Distributor License for Java (DLJ) meets many Linux distributions' requirements, lessening the demand for the older Blackdown JVM.

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 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==