I downloaded Liquibase exe version on my windows machine and installed in c:\Program Files location.
I already had java installed in my machine. I got below error when executed liquibase bat file.
"Files\liquibase\jre was unexpected at this time
[Fix] - From above error its clear its happening space between Program Files. So I installed it in other location with folder name without any space and it worked.
Please have a look and fix this issue.