Maven and JDK

Maven is one of the build tools used for creating packages from Java-based codes.

One of the dependencies required for Maven is Java Development Kit. Unlike other Java-based applications, that are not build tools, the JRE (Java Runtime Environment) will work but only JDK will work with Maven and other build tools.

Confirmation that you have JDK can be obtained by running the command below… The Java compiler will help convert Java codes from human-readable format to machine-readable format.

javac -version

The version requirement of Java may change from time to time. Click here to see Oracle’s documentation on the different versions of JDK that can be installed.

If you just want the install JDK on a Debian distribution and you are not concerned about a particular version, run sudo apt-get install default-jdk. 

To install on distributions that use the yum package manager, run any of the following:

1. sudo yum install java-11-openjdk-devel 

   #This will install Java 11 JDK

2. sudo yum install java-1.8.0-openjdk-devel 

   #This will install Java 8 JDK

Installing Maven…

Here are the steps for installing Maven on your Linux server:

1.  Visit the Apache Maven website to download the latest version of Maven. You can use the wget command to download it. If you don’t have wget in your server, of course, you need to install it.
2. Extract the downloaded archive to the directory where you want Maven installed. You need unzip installed to make this happen.
3. Add the following lines to your ~/.bashrc file to set the environment variables for Maven (don’t forget to replace “enterTheAbsolutePathToYourMavenHomeDirectory” in the code)…
   export M2_HOME=enterTheAbsolutePathToYourMavenHomeDirectory

export PATH=$PATH:$M2_HOME/bin
4. Run the source command to reload the ~/.bashrc file:
   source ~/.bashrc

5. Confirm the version of maven you have installed by running the command below:
mvn -v


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