Re: Java compiler on Fedora (GCJ)

[Angelo Moreschini]

Tank you Christopher,

I know "jdk" that I use regularly, but I am looking for something different.
The development with JDK produce .jar files that are compressed files made
with byte-code (.files.class ).
...To run jar files, you need the java environment (the command is "java
-jar xxx.jar").

I look for a possibility to get directly executable files in Linux
environment.
They are some tools that convert jar filer in executable for the Windows
environment.. (Launch4j, Excelsior <very expensive!!>, ...).

I am looking for a a real compiler in Linux environment for the Java
language, a compiler that produce directly executable files (as gcc is for
the C language)...

On Sun, Jan 6, 2019 at 11:51 AM Christopher 
wrote:
> On Sun, Jan 6, 2019 at 3:23 AM Angelo Moreschini
>  wrote:
> > I am not able to install the java compiler on fedora (
>
> https://docs.fedoraproject.org/en-US/Fedora_Core/6/html/Release_Notes/sn-Jav...
> > ).
> >
> > I read that fedora not support directly gcj ...
> > So I try to work around, to install it  indirectly, but I have to much
>
> problem to find the necessary dependencies...
> > Ho to do ?
> > any advice will welcome
> >
> > Angelo
>
> That's a very old version of the Fedora docs. I'm pretty sure gcj is a
> dead project. Fedora now ships with OpenJDK. In the latest version
> (Fedora 29), there are several versions available. To see them, run:
> sudo dnf repoquery --whatprovides */bin/javac
>
> You'll probably want either JDK 8 or 11, so one of the following
> should work for you:
> sudo dnf install java-1.8.0-openjdk-devel # if you want JDK 8, specifically
> sudo dnf install java-11-openjdk-devel # if you want JDK 11, specifically
> sudo dnf install java-openjdk-devel # if you want the latest OpenJDK,
> currently 11
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