Oracle Linux: How to Remove Java from a Linux Instance

Applies To:

Linux OS–Version Oracle Linux 7.0 to Oracle Linux 9.0 [Release OL7 to OL9]

Linux x86_64 on Oracle Public Cloud

Goal:

Remove Java versions completely from Oracle Linux instances.

Solution:

To Remove Java package from an Oracle Linux System(other versions of Java may still be present on the system), follow the steps below:

• Find the Java package:

# rpm -qa | grep jdk

• Remove the Java package (retrieved from the previous command output):

Example)
# yum remove jdk-11-11.0.18-9.x86_64

• Delete symbolic links with the update-alternatives command.

# update-alternatives --remove "java" "/usr/lib/jvm/jdk[version]/bin/java"

Examples)
# update-alternatives --remove "java" "/usr/lib/jvm/jdk-11-oracle-x64/bin/java"
# update-alternatives --remove "javac" "/usr/lib/jvm/jdk-11-oracle-x64/bin/javac"
# update-alternatives --remove "javaws" "/usr/lib/jvm/jdk-11-oracle-x64/bin/javaws"