Resolve "ResourceNotFoundException: StudentGroup was not found for person, module: 240, 416"

Closes #148 (closed)

src/main/java/nl/tudelft/labracore/controller/ErrorController.java

@@ -17,6 +17,7 @@
  */
 package nl.tudelft.labracore.controller;
 
+import org.springframework.data.rest.webmvc.ResourceNotFoundException;
 import org.springframework.web.bind.annotation.ControllerAdvice;
 import org.springframework.web.bind.annotation.ExceptionHandler;
 
@@ -24,11 +25,20 @@ import io.sentry.Sentry;
 
 @ControllerAdvice
 public class ErrorController {
+	/**
+	 * Does nothing to ResourceNotFoundExceptions.
+	 *
+	 * @param e the exception
+	 */
+	@ExceptionHandler(ResourceNotFoundException.class)
+	public void resourceNotFound(ResourceNotFoundException e) {
+		throw e;
+	}
+
 	/**
 	 * Prints the exception stack trace and returns the error page with the default error message.
 	 *
-	 * @param  e the exception
-	 * @return   the link to the error page
+	 * @param e the exception
 	 */
 	@ExceptionHandler(Exception.class)
 	public void exception(Exception e) throws Exception {