SSL Debugging - Part - I

We've been involved in many cases solving issues related to SSL.The latest one I came across was at a customer site, where WSO2 ESB wants to communicate with an SSL end point(WCF) hosted on IIS 7. The only thing here what we have to do is, importing the CA certificate of the WCF end point to the ESB's client-trustore.jks [which is under ESB_HOME\resources\security].This worked well at the start -