how to configure java on RHEL for browser

how to configure java on RHEL for browser
java
Ethan Jackson

i installed java jdk on my RHEL 8 system. But I cannot see it in my browser. When I test browser for java it says Java is not installed.

# dnf install java-21-openjdk.x86_64 # java -version openjdk version "21.0.6" 2025-01-21 LTS OpenJDK Runtime Environment (Red_Hat-21.0.6.0.7-1) (build 21.0.6+7-LTS) OpenJDK 64-Bit Server VM (Red_Hat-21.0.6.0.7-1) (build 21.0.6+7-LTS, mixed mode, sharing)

There is no java.conf file on system.

I have put following in my .bashrc as asked in net elsewhere:

$ readlink -f $(which java) /usr/lib/jvm/java-21-openjdk-21.0.6.0.7-1.el8.x86_64/bin/java $ printenv|grep -i java JAVA_HOME=/usr/lib/jvm/java-21-openjdk-21.0.6.0.7-1.el8.x86_64/ $ firefox& [1] 2475911

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Answer

Java in browsers is not a thing since last decade. It was removed since Java 9. See the reasons in Why were applets deprecated in JDK 9?

If you see Java in a browser today you are exposed to a security risk. Fortunately modern browsers and Java/JDK versions do not support that anymore.

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