Suppress "Circular view path [error]" error message

1. clone simple project: https://github.com/stepancheg/spring-boot-whitelabel

project contains controller with function

@RequestMapping("/throw")
@ResponseBody
public String t() {
    throw new RuntimeException();
}

and project calls

System.setProperty("error.whitelabel.enabled", "false");

before main.

2. run main class (demo.Application)
3. point browser to http://localhost:8080/throw

Browser displays white page. Expecting something more sensible. Tomcat default error handler would be perfect.

Using spring-boot 1.2.0.RC2.

Start with the linked simple project and its demo.Application entry point, then reproduce the request to /throw after setting error.whitelabel.enabled to false. Compare the resulting white page with the expected Tomcat default error handling; the issue is done when the circular view path message is suppressed and a more useful error response is shown.