How To Install libunsafe-fences-java on Ubuntu 20.04
Introduction
In this tutorial we learn how to install libunsafe-fences-java
on Ubuntu 20.04.
What is libunsafe-fences-java
libunsafe-fences-java is:
unsafe-fences is a very simple Java library that just provides a shim around the Java 8 Unsafe methods used for memory fencing.
In Java 8, three memory-ordering intrinsics were added to the sun.misc.Unsafe class: fullFence, storeFence, and loadFence.
The main goal of unsafe-fences is to allow code in Java 6 and 7 to compile those calls with a provided boolean guard.
This is especially useful for projects like JRuby that support several JDK versions but it can be reused by other Java projects as well.
There are three methods to install libunsafe-fences-java
on Ubuntu 20.04. We can use apt-get
, apt
and aptitude
. In the following sections we will describe each method. You can choose one of them.
Install libunsafe-fences-java Using apt-get
Update apt database with apt-get
using the following command.
sudo apt-get update
After updating apt database, We can install libunsafe-fences-java
using apt-get
by running the following command:
sudo apt-get -y install libunsafe-fences-java
Install libunsafe-fences-java Using apt
Update apt database with apt
using the following command.
sudo apt update
After updating apt database, We can install libunsafe-fences-java
using apt
by running the following command:
sudo apt -y install libunsafe-fences-java
Install libunsafe-fences-java Using aptitude
If you want to follow this method, you might need to install aptitude first since aptitude is usually not installed by default on Ubuntu. Update apt database with aptitude
using the following command.
sudo aptitude update
After updating apt database, We can install libunsafe-fences-java
using aptitude
by running the following command:
sudo aptitude -y install libunsafe-fences-java
How To Uninstall libunsafe-fences-java on Ubuntu 20.04
To uninstall only the libunsafe-fences-java
package we can use the following command:
sudo apt-get remove libunsafe-fences-java
Uninstall libunsafe-fences-java And Its Dependencies
To uninstall libunsafe-fences-java
and its dependencies that are no longer needed by Ubuntu 20.04, we can use the command below:
sudo apt-get -y autoremove libunsafe-fences-java
Remove libunsafe-fences-java Configurations and Data
To remove libunsafe-fences-java
configuration and data from Ubuntu 20.04 we can use the following command:
sudo apt-get -y purge libunsafe-fences-java
Remove libunsafe-fences-java configuration, data, and all of its dependencies
We can use the following command to remove libunsafe-fences-java
configurations, data and all of its dependencies, we can use the following command:
sudo apt-get -y autoremove --purge libunsafe-fences-java
References
Summary
In this tutorial we learn how to install libunsafe-fences-java
package on Ubuntu 20.04 using different package management tools: apt
, apt-get
and aptitude
.