Good Day! Everything was followed perfectly from this URL: http://tomcat.apache.org/tomcat-7.0-doc/ssl-howto.html. I've done this setup a lot of times already and mostly I have been successful.
Until our security team noticed that the installed root CA is incorrect. Instead of just importing the correct root CA, I deleted all the imported certificates (originally 2 certificates) using the "keytool -delete -alias <certificate nicknames> -keystore .keystore". Afterwards, I imported the 2 certificates again. Now when I access https://mydomain:8443, it gives me a webpage not found with ERR_CONNECTION_REFUSED error in Chrome and ssl_error_no_cypher_overlap in Firefox. Could anyone please let me know what I must have did wrong? Thank you in advance.