r12.8.x AdminUI uninstallation failed with a Java error and couldn't be uninstalled or upgraded.
Release : 12.8.x
Component : SITEMINDER WAM UI
Component OS: Linux
Java had been manually removed or modified and was now corrupt.
Manually remove the AdminUI from the server
1) Stop the AdminUI
2) Delete the AdminUI directory
rm -R adminui --interactive=NEVER
3) Delete the 'zerog' directory
ls -a (To list hidden files)
rm -R .com.zerog.registry.xml (To delete zerog)