From mboxrd@z Thu Jan 1 00:00:00 1970 X-Spam-Checker-Version: SpamAssassin 3.4.4 (2020-01-24) on polar.synack.me X-Spam-Level: X-Spam-Status: No, score=-1.3 required=5.0 tests=BAYES_00,INVALID_MSGID autolearn=no autolearn_force=no version=3.4.4 X-Google-Language: ENGLISH,ASCII-7-bit X-Google-Thread: fdb77,764cbe34e0365b81 X-Google-Attributes: gidfdb77,public X-Google-Thread: 109fba,4438af6225b2af65 X-Google-Attributes: gid109fba,public X-Google-Thread: 103376,4438af6225b2af65 X-Google-Attributes: gid103376,public From: oopster@my-dejanews.com Subject: Re: Real time Java? Huh? Date: 1998/11/06 Message-ID: <71vhli$hul$1@nnrp1.dejanews.com>#1/1 X-Deja-AN: 409106650 References: <363E1DE8.4189EBAC@solaris.ok> <364024f5.3575731@news.demon.co.uk> <364071C4.619D@world.std.com> <3641ca4b.23637018@news.demon.co.uk> <3641B718.DBF4C37C@tisny.com> <36431ca0.301400410@news.netcomuk.co.uk> <364224FB.7FCF@world.std.com> <71tpsr$hva$1@supernews.com> <36427517.27089188@news.nmia.com> <36428b55.0@blushng.jps.net> <3642a327.38883600@news.nmia.com> X-Http-Proxy: 1.0 x11.dejanews.com:80 (Squid/1.1.22) for client 207.137.104.107 Organization: Deja News - The Leader in Internet Discussion X-Article-Creation-Date: Fri Nov 06 19:11:46 1998 GMT Newsgroups: comp.lang.java.advocacy,comp.lang.ada,comp.lang.c++ X-Http-User-Agent: Mozilla/4.5 [en] (WinNT; I) Date: 1998-11-06T00:00:00+00:00 List-Id: In article <3642a327.38883600@news.nmia.com>, joconnor@roadrunner.com wrote: > On Thu, 05 Nov 1998 21:36:10 -0800, Joseph <**********@*******.**> > wrote: > > >I missed way too much of this thread. Java as a real time language? > >Tell me that this is a hoax, please. > > That gist of it is that some companies are breaking with Sun and > trying to establish a standard for Java in real time systems. More accurately, the gist is that Sun has a proposed standard for real-time Java, and a group of other companies has also formed a consortium to promote a somewhat different realtime Java standard. The main issue seems to be the licensing terms for Sun Embedded Java. HP has already produced a competing embedded Java VM, which they are also licensing to other companies. > I remember being at a Alsys demonstration once where one of the Ada > compiler writers warned against using exception handling in hard real > time systems because you couldn't guarantee how long it would take to > unwind to find the handler for the raised exception. I wonder if such > conditions esist for exception handling in Java? (Or dynamic > dispatch, for that matter) Is it still the case that Ada exceptions are to be avoided for real-time? Not a good thing if true... It seems clear that deterministic exception handling will be critical to real-time Java efforts. I'm sure you can find out more about this at the various real-time Java websites if you're interested. -----------== Posted via Deja News, The Discussion Network ==---------- http://www.dejanews.com/ Search, Read, Discuss, or Start Your Own