What are JDK default user and group?

I have a freshly installed jdk1.8.0_121 on my redhat machine. When I ls -la in the installation directory, following output is received,

total 178952
drwxr-xr-x.  5 root        root               87 Mar 23 16:00 .
dr-xr-xr-x. 19 root        root              256 Mar 23 18:19 ..
drwxr-xr-x.  8   10         143              255 Dec 12 19:50 jdk1.8.0_121
-rw-r--r--.  1 root        root        183246769 Dec 14 14:42 jdk-8u121-linux-x64.tar.gz
drwxr-xr-x.  2 root        root                6 Mar  9  2015 rh

My concern is with this line, drwxr-xr-x. 8 10 143 255 Dec 12 19:50 jdk1.8.0_121 Are these user ("10", for which there is no corresponding user) and group ("143", for which there is no corresponding group) expected or have I missed something while installation ?