Reporting errors using application exceptions

It is recommended to use a checked application exception for recoverable error scenarios. In this section, we will see how a checked exception can be used in a RESTful web API implementation.

Here is a checked business exception definition for use in the JAX-RS resource method:

//Business exception class 
public class DeprtmentNotFoundBusinessException extends Exception{ 
 
    public DeprtmentNotFoundBusinessException(String message) { 
        super(message); 
    } 
 
    public DeprtmentNotFoundBusinessException(String message,  
       Throwable cause) { 
        super(message, cause); 
    } 
 
    //Rest of the implementation code goes here 
} 

The following code snippet uses DeprtmentNotFoundBusinessException for reporting the DepartmentNotFound error to the caller:

@DELETE 
@Path("departments/{id}") 
public void remove(@PathParam("id") Short id) throws  
    DeprtmentNotFoundBusinessException { 
    //Read department from data store for...