/usr/lib/jvm/

ls -la /usr/lib/jvm/
total 8
drwxr-xr-x   4 root root 4096 Aug 17 18:54 .
dr-xr-xr-x. 42 root root 4096 May 12 09:48 ..
lrwxrwxrwx   1 root root   26 Aug 17 18:52 java -> /etc/alternatives/java_sdk
lrwxrwxrwx   1 root root   29 Aug 17 18:52 java-11 -> /etc/alternatives/java_sdk_11
lrwxrwxrwx   1 root root   37 Aug 17 18:52 java-11-openjdk -> /etc/alternatives/java_sdk_11_openjdk
drwxr-xr-x   8 root root   97 Aug 17 18:52 java-11-openjdk-11.0.20.0.8-1.el7_9.x86_64
drwxr-xr-x   3 root root   17 Jul 14 12:14 java-1.8.0-openjdk-1.8.0.382.b05-1.el7_9.x86_64
lrwxrwxrwx   1 root root   34 Aug 17 18:52 java-openjdk -> /etc/alternatives/java_sdk_openjdk
lrwxrwxrwx   1 root root   21 Aug 17 18:54 jre -> /etc/alternatives/jre
lrwxrwxrwx   1 root root   24 Aug 17 18:52 jre-11 -> /etc/alternatives/jre_11
lrwxrwxrwx   1 root root   32 Aug 17 18:52 jre-11-openjdk -> /etc/alternatives/jre_11_openjdk
lrwxrwxrwx   1 root root   42 Aug 17 18:52 jre-11-openjdk-11.0.20.0.8-1.el7_9.x86_64 -> java-11-openjdk-11.0.20.0.8-1.el7_9.x86_64
lrwxrwxrwx   1 root root   27 Aug 10 00:35 jre-1.8.0 -> /etc/alternatives/jre_1.8.0
lrwxrwxrwx   1 root root   35 Aug 10 00:35 jre-1.8.0-openjdk -> /etc/alternatives/jre_1.8.0_openjdk
lrwxrwxrwx   1 root root   51 Aug 10 00:34 jre-1.8.0-openjdk-1.8.0.382.b05-1.el7_9.x86_64 -> java-1.8.0-openjdk-1.8.0.382.b05-1.el7_9.x86_64/jre
lrwxrwxrwx   1 root root   29 Aug 17 18:52 jre-openjdk -> /etc/alternatives/jre_openjdk

/bin/java
update-alternatives --config java

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