How To Install OpenJdk-8 Manually On Your Linux Machine?

As Java 8 is not installed by default on newer Kali Linux versions, this guide will show you how to manually install JDK 8 without any errors...

Follow The Below Steps:

Step 1: Download JDK8 from Oracle:

Download

Step 2: cd /usr/lib/jvm

Step 3: sudo tar -xvzf ~/Downloads/jdk-8u321-linux-x64.tar.gz

Step 4: sudo nano /etc/environment

Step 5: Add the following lines:

:/usr/lib/jvm/jdk1.8.0_321/bin:/usr/lib/jvm/jdk1.8.0_321/db/bin:/usr/lib/jvm/jdk1.8.0_321/jre/bin
J2SDKDIR="/usr/lib/jvm/jdk1.8.0_321"
J2REDIR="/usr/lib/jvm/jdk1.8.0_321/jre"
JAVA_HOME="/usr/lib/jvm/jdk1.8.0_321"
DERBY_HOME="/usr/lib/jvm/jdk1.8.0_321/db"

Step 6: Update Java alternatives:

sudo update-alternatives --install "/usr/bin/java" "java" "/usr/lib/jvm/jdk1.8.0_321/bin/java" 0
sudo update-alternatives --install "/usr/bin/javac" "javac" "/usr/lib/jvm/jdk1.8.0_321/bin/javac" 0
sudo update-alternatives --set java /usr/lib/jvm/jdk1.8.0_321/bin/java
sudo update-alternatives --set javac /usr/lib/jvm/jdk1.8.0_321/bin/javac

Step 7: Test installation:

java -version

If you followed all steps, Java 8 (openjdk-8-jdk) is now successfully installed!

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