Remote debugging WSO2 products using intellij

SYou might like to add a new feature to a WSO2 product and hence attempt to modify the large code base of a product or you might like to understand the code base--certainly these tasks could be cumbersome. To achieve these you could remote debug the product using the debug facility readily available with WSO2 products. This tutorial explains how to remote debug a wso2 product (taking ESB as an example and the carbon-mediation as the code base) using intellij. At the end it explains how to remote debug any code in general.