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=-1.9 required=5.0 tests=BAYES_00 autolearn=ham autolearn_force=no version=3.4.4 X-Google-Thread: 103376,25e091afe1184988 X-Google-Attributes: gid103376,public X-Google-Language: ENGLISH,ASCII-7-bit Path: g2news2.google.com!news2.google.com!fu-berlin.de!uni-berlin.de!individual.net!not-for-mail From: Peter Amey Newsgroups: comp.lang.ada Subject: Re: Reference-oriented language and high-integrity software Date: Fri, 03 Nov 2006 12:37:35 +0000 Message-ID: <4r0rggFoug8lU1@individual.net> References: Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit X-Trace: individual.net Rbddwv/KXDG8KvpYFGmZdA4tpAh8SQE8Rwlg2ih+Sgfmk+7Wo= User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.0; en-US; rv:1.4) Gecko/20030624 Netscape/7.1 (ax) X-Accept-Language: en-us, en In-Reply-To: Xref: g2news2.google.com comp.lang.ada:7357 Date: 2006-11-03T12:37:35+00:00 List-Id: Maciej Sobczak wrote: [snip] > > And last but not least, how does the JB's statement stand in front of > things like RealTime Java or even HIJA (High-Integrity Java)? > The answer to this one is, I think, a bit easier. Neither RealTime Java nor HIJA can reasonably be described as Java. The last time I looked, both required special compilers; were designed to produce native machine code not an interpreted J code; allocated objects on the stack rather than heap; and had no garbage collection. The restrictions mean that you cannot use any of the standard libraries and don't get platform portable code; the two primary attraction of Java in the first place. What you do have is two new languages that just happen to have a Java-like syntax. The modifications required to give these new languages their real-time and high integrity credentials are precisely aligned with John Barnes's objections to them. regards Peter