Today I set out on trying to set up a simple passthrough proxy that would allow for a GET request to be made to REST style backend services that replies with HTML content. The proxy services was being set up on WS02 ESB v4.8.0. I thought this was really going to be as simple as walking though their wizard and setting up a new proxy endpoint that just handed off to the behinds the scene service. It was straight forward to set up the proxy, but then unfortunately when called it just didn't respond. It took quite awhile to figure out what the issues was. At first I was using the ESB admin console and review the System and Application Logs. The Application Logs were certainly more useful, but they still truncated stack traces which made it hard to clue in on the real issue. It wasn't until I went and review the logs on the server that I was able to detect the cause. <wso2_esb_root>/repository/logs/wso2-esb-errors.log 2015-03-19 16:09:43,00...