```
public class Error404Helper
extends Object
```
This is an internal used helper class for 404 error.

All Methods Static Methods Concrete Methods
Modifier and Type	Method	Description
`static org.springframework.http.HttpHeaders`	`setResponseHeaders(javax.servlet.http.HttpServletRequest request)`

public static org.springframework.http.HttpHeaders setResponseHeaders(javax.servlet.http.HttpServletRequest request)

Class Error404Helper