How To Install janino on Fedora 34
Introduction
In this tutorial we learn how to install janino on Fedora 34.
What is janino
Janino is a super-small, super-fast Java compiler. Not only can it compile a set of source files to a set of class files like the JAVAC tool, but also can it compile a Java expression, block, class body or source file in memory, load the byte-code and execute it directly in the same JVM. Janino is not intended to be a development tool, but an embedded compiler for run-time compilation purposes, e.g. expression evaluators or “server pages” engines like JSP.
We can use yum or dnf to install janino on Fedora 34. In this tutorial we discuss both methods but you only need to choose one of method to install janino.
Install janino on Fedora 34 Using dnf
Update yum database with dnf using the following command.
sudo dnf makecache --refresh
The output should look something like this:
Fedora 34 - x86_64 20 kB/s | 6.6 kB 00:00
Fedora 34 openh264 (From Cisco) - x86_64 1.4 kB/s | 989 B 00:00
Fedora Modular 34 - x86_64 68 kB/s | 6.5 kB 00:00
Fedora 34 - x86_64 - Updates 3.5 kB/s | 6.2 kB 00:01
Fedora Modular 34 - x86_64 - Updates 17 kB/s | 5.9 kB 00:00
Metadata cache created.
After updating yum database, We can install janino using dnf by running the following command:
sudo dnf -y install janino
Install janino on Fedora 34 Using yum
Update yum database with yum using the following command.
sudo yum makecache --refresh
The output should look something like this:
Fedora 34 - x86_64 20 kB/s | 6.6 kB 00:00
Fedora 34 openh264 (From Cisco) - x86_64 1.4 kB/s | 989 B 00:00
Fedora Modular 34 - x86_64 68 kB/s | 6.5 kB 00:00
Fedora 34 - x86_64 - Updates 3.5 kB/s | 6.2 kB 00:01
Fedora Modular 34 - x86_64 - Updates 17 kB/s | 5.9 kB 00:00
Metadata cache created.
After updating yum database, We can install janino using yum by running the following command:
sudo yum -y install janino
How To Uninstall janino on Fedora 34
To uninstall only the janino package we can use the following command:
sudo dnf remove janino
janino Package Contents on Fedora 34
/usr/share/doc/janino
/usr/share/doc/janino/README.txt
/usr/share/java/janino
/usr/share/java/janino/commons-compiler-jdk.jar
/usr/share/java/janino/commons-compiler.jar
/usr/share/java/janino/janino.jar
/usr/share/licenses/janino
/usr/share/licenses/janino/new_bsd_license.txt
/usr/share/maven-metadata/janino.xml
/usr/share/maven-poms/janino
/usr/share/maven-poms/janino/commons-compiler-jdk.pom
/usr/share/maven-poms/janino/commons-compiler.pom
/usr/share/maven-poms/janino/janino-parent.pom
/usr/share/maven-poms/janino/janino.pom
References
Summary
In this tutorial we learn how to install janino on Fedora 34 using yum and dnf.