Unexpected 404 with exceptionHandler with empty response body

[jlorenzen]

It seems spark will return a 404 when an exception handler does not set the response body. The following should reproduce the issue:

before("/foo", (request, response) -> throw new CustomException());
get("/foo" (request, response) -> "Hello");
exception(CustomException.class (ex, request, response) -> {
    response.status(401);
    response.header("WWW-Authenticate", "Bearer");
    // response.body("");
});

When the line response.body is commented out, hitting that endpoint will result in a 404. When the line is uncommented out, a 401 is returned. It doesn't seem like we should have to set the response body.

[tipsy]

Routes need to return a value (or have a body set), or they will result in a 404. It's known behavior, but it hasn't been changed because of backwards compatibility.

[jlorenzen]

ok thanks @tipsy