OpenJDK Project insatisfaction (original) (raw)

David Holmes david.holmes at oracle.com
Fri Jun 1 23:21:46 UTC 2018

On 2/06/2018 4:30 AM, Emilio Aguilar Gutiérrez wrote:

Hello.

I understand the benefit of proving a complier can regenerate itself... It is a great demostration of "non triviality"... But in relation with my concern... Everybody should also have access to the original compiler development... which was written in other language (because the targeted one did not existed yet). I would like to recover the first development source code of it. Then, I could have all the complet chain... 1- First JDK (perhaps written in C / C++)

I doubt it ever existed. There would have been a basic parser/generator tool using the tools of the day back in the mid 80's to bootstrap the initial prototype but that would have become self-hosting years before such a thing as a "JDK" existed.

David

2- JDK self compiled 3- All the next enhancements.

But... without the point 1... the beginning is lost... and also any other beginning that could learn from the first one... Does anybody have the source code of OpenJDK 0.0 in a programming language other than Java? I am very interested.... Thank a lot for your answers. Emilio Aguilar Gutiérrez 2018-06-01 17:15 GMT+01:00 Remi Forax <forax at univ-mlv.fr>:

Any non trivial languages have a self hosting compiler, javac or gcc has been bootstrapped the same way. https://en.wikipedia.org/wiki/Bootstrapping%28compilers%29

Rémi ----- Mail original ----- De: "Emilio Aguilar Gutiérrez" <eag2001 at gmail.com> À: "jdk-dev" <jdk-dev at openjdk.java.net> Envoyé: Vendredi 1 Juin 2018 16:29:44 Objet: OpenJDK Project insatisfaction

Hello

I have enrolled in this posting list to make receive to everybody my insatisfaction message (ohh)... I am 49 years old and I am in the IT Development world since the 80's... I started with Spectrum 64... I have learned Pascal, C, C++, SQL, Java, Javascript, and the list continues... And I like the JVM idea (multiplatform virtual machine architecture) But I got very dissapointed when I realized that to get OpenJDK from the source code, I have to install a previous JDK... This means that I cannot get JDK just from a source code and a external tool... So, I thought that JDK source code was useless... Because, If I have de JDK, why do I have to compile the JDK?... It is only worthy to make an upgrade... But... where is the seed? How can I get the initial seed? In C world the things are different... You can build everything in some few steps: 1) Get a OS (FreeDos or Minimal Linux) ^----This is an Achilles heel... 2) Get an Asembler tool for that OS and CPU ^----This is an Achilles heel... 3) Get an Assembler code for a C/C++ Compiler-Linker 4) Generate a C/C++ Compiler-Linker 5) Start Building C/C++ Compiler-Linker Better (DJGCC or GCC) 6) Build all the libraries you need 7) Create everything... That should include: 1) Java Clases and Libraries 1) JVM 2) javac 3) JDK complete Unfortunately... OpenJDK is not in this sequence... And I feel that is need to solve the gap... Because, now, source-code is useless (except for upgrade) I hope being able to express my idea clearly... And to convince somebody to review the current way of evolving... Because it have lost the connection with the origins. Regards, Emilio Aguilar Gutiérrez Software Engineer & IT Teacher

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