OSNews: http://www.osnews.com/story/22117/Exploit_Real-Time_Java_s_Unique_Features Exploring the Future of Computing en-us Copyright 2001-2013, David Adams adam+nospam@osnews.com Tue, 21 May 2013 10:00:11 GMT http://www.osnews.com/images/osnews.gif OSNews.com http://www.osnews.com Available RealTime-capable JVM's? http://www.osnews.com/thread?382558 http://www.osnews.com/thread?382558 While the RTSJ API certainly seems useful for things like audio processing, are there any good free (as in speech or beer) JVM's available that actually support these extensions?

Sun has an implementation at http://java.sun.com/javase/technologies/realtime/rts/ , but afaics they only provide evaluation and 'academic' licenses for free. Sun, 06 Sep 2009 01:26:00 GMT donotreply@osnews.com (raboof) Comments RE: Available RealTime-capable JVM's? http://www.osnews.com/thread?382577 http://www.osnews.com/thread?382577 None that I could find.

They seem to be pitching this for the high-end i.e. banking/trading applications running dedicated realtime platforms like QNX. Sun, 06 Sep 2009 08:08:00 GMT donotreply@osnews.com (tobyv) Comments RE: Available RealTime-capable JVM's? http://www.osnews.com/thread?382624 http://www.osnews.com/thread?382624 I know of three implementations of the RTSJ.

The Sun and the IBM (Websphere) JREs are both commercial.

There is however the Reference-Implementation from Timesys (http://www.timesys.com/java/) that can be used freely for research* purposes. The drawback here is that it only supports Byte Code up to Version 1.3, which means (among other things) no generics, no enumerations and an old API.

* as in the Licence Agreement:
" "Research Purposes" means research, evaluation, development, educational or personal and individual use, excluding use or distribution for direct or indirect commercial (including strategic) gain or advantage."Edited 2009-09-07 12:13 UTC Mon, 07 Sep 2009 12:10:00 GMT donotreply@osnews.com (ShineOn) Comments RE[2]: Available RealTime-capable JVM's? http://www.osnews.com/thread?382670 http://www.osnews.com/thread?382670
The Sun and the IBM (Websphere) JREs are both commercial.


Right - Sun also has an 'academic' license, but its terms are rather more restrictive: http://java.sun.com/javase/technologies/realtime/rts/eduqualificati...

Oracle also seems to have a a free-as-in-beer 'real time' JRockit JVM, but afaics this is just a JVM with thing like a more RT-friendly garbage collection mechanism, and does not contain an implementation of RTSJ. Mon, 07 Sep 2009 20:56:00 GMT donotreply@osnews.com (raboof) Comments