Linked by Thom Holwerda on Fri 4th Sep 2009 23:46 UTC
Real-time Java combines ease of programming in the Java language with the performance required by applications that must conform to real-time constraints. Extensions to the Java language provide features for real-time environments that are lacking in the traditional Java runtime environment. This article, the first in a three-part series, describes some of these features and explains how you can apply them to enable real-time performance in your own applications.
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RE[2]: Available RealTime-capable JVM's?
by raboof on Mon 7th Sep 2009 20:56
in reply to "RE: Available RealTime-capable JVM's?"
Member since:2005-07-24
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.
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Member since:
2009-02-08
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