Merge pull request #556 from hmcts/DTSRD-261

DTSRD-261: Location endpoint throws 500 instead of 400 with missing param

Author: fiyin-cgi

src/main/java/uk/gov/hmcts/reform/lrdapi/controllers/advice/ExceptionMapper.java

@@ -8,6 +8,7 @@
 import org.springframework.http.ResponseEntity;
 import org.springframework.http.converter.HttpMessageNotReadableException;
 import org.springframework.security.access.AccessDeniedException;
+import org.springframework.web.bind.MissingServletRequestParameterException;
 import org.springframework.web.bind.annotation.ControllerAdvice;
 import org.springframework.web.bind.annotation.ExceptionHandler;
 import org.springframework.web.bind.annotation.RequestMapping;
@@ -106,6 +107,11 @@ public ResponseEntity<Object> handleMethodArgumentTypeMismatchException(Exceptio
         return errorDetailsResponseEntity(ex, BAD_REQUEST, ex.getMessage());
     }
 
+    @ExceptionHandler(MissingServletRequestParameterException.class)
+    public ResponseEntity<Object> handleMissingServletRequestParameterException(Exception ex) {
+        return errorDetailsResponseEntity(ex, BAD_REQUEST, ex.getMessage());
+    }
+
     private String getTimeStamp() {
         return new SimpleDateFormat("dd-MM-yyyy HH:mm:ss.SSS", Locale.ENGLISH).format(new Date());
     }