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=2.1 required=5.0 tests=BAYES_20,INVALID_MSGID, REPLYTO_WITHOUT_TO_CC autolearn=no autolearn_force=no version=3.4.4 X-Google-Language: ENGLISH,ASCII-7-bit X-Google-Thread: 103376,4438af6225b2af65 X-Google-Attributes: gid103376,public X-Google-Thread: 109fba,4438af6225b2af65 X-Google-Attributes: gid109fba,public X-Google-Thread: fdb77,764cbe34e0365b81 X-Google-Attributes: gidfdb77,public From: joconnor@roadrunner.com (Jay O'Connor) Subject: Re: Real time Java? Huh? Date: 1998/11/06 Message-ID: <3642a327.38883600@news.nmia.com>#1/1 X-Deja-AN: 408946333 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> X-Complaints-To: abuse@nmia.com X-Trace: hume.nmia.com 910336945 31178 206.206.163.208 (6 Nov 1998 07:22:25 GMT) Organization: New Mexico Internet Access Reply-To: joconnor@roadrunner.com NNTP-Posting-Date: 6 Nov 1998 07:22:25 GMT Newsgroups: comp.lang.java.advocacy,comp.lang.ada,comp.lang.c++ Date: 1998-11-06T07:22:25+00:00 List-Id: 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. 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) >Joseph > >Jay O'Connor wrote: > >> On Thu, 5 Nov 1998 21:21:27 -0600, "Pat Rogers" >> wrote: >> >> >David Chase wrote in message <364224FB.7FCF@world.std.com>... >> > >> > >> > >> >>Most of that commercial software is written in "unsafe" languages. >> >>C++ is not safe. Pascal is not safe. Ada, as typically used, >> >>is not safe. >> > >> >Detailed, hard evidence, please, regarding Ada. >> >> That one kinda surprised me as well because Ada was designed to be >> safe but also designed to support low level hardware access if needed. >> >> I mean, the language was originally targetted for embedded weapons >> systems and such, >> >> BTW - The onboard systems on the Boeing 777 are written in Ada. As >> are most of the train systems in Europe. >> >> Jay O'Connor >> joconnor@roadrunner.com >> http://www.roadrunner.com/~joconnor >> >> "God himself plays on the bass strings first, when he tunes the soul" > Jay O'Connor joconnor@roadrunner.com http://www.roadrunner.com/~joconnor "God himself plays on the bass strings first, when he tunes the soul"