tds/src/main/java/thredds/server/TdsErrorHandling.java
@ExceptionHandler(Throwable.class)
  public ResponseEntity<String> handle(Throwable ex) throws Throwable {
    // If the exception is annotated with @ResponseStatus rethrow it and let
    // the framework handle it - like the OrderNotFoundException example
    // at the start of this post.
    // AnnotationUtils is a Spring Framework utility class.
    // see https://spring.io/blog/2013/11/01/exception-handling-in-spring-mvc
    if (AnnotationUtils.findAnnotation(ex.getClass(), ResponseStatus.class) != null)
      throw ex;

    logger.error("uncaught exception", ex);
    // ex.printStackTrace(); // temporary - remove in production

    HttpHeaders responseHeaders = new HttpHeaders();
    responseHeaders.setContentType(MediaType.TEXT_PLAIN);
    String msg = ex.getMessage();
      StringWriter sw = new StringWriter();
      PrintWriter p = new PrintWriter(sw);
      ex.printStackTrace(p);
      p.close();
      sw.close();
      msg = sw.toString();
    return new ResponseEntity<>("Throwable exception handled : " + htmlEscape(msg), responseHeaders, HttpStatus.INTERNAL_SERVER_ERROR);
  }
@ExceptionHandler(Throwable.class)
  public ResponseEntity<String> handle(Throwable ex) throws Throwable {
    // If the exception is annotated with @ResponseStatus rethrow it and let
    // the framework handle it - like the OrderNotFoundException example
    // at the start of this post.
    // AnnotationUtils is a Spring Framework utility class.
    // see https://spring.io/blog/2013/11/01/exception-handling-in-spring-mvc
    if (AnnotationUtils.findAnnotation(ex.getClass(), ResponseStatus.class) != null)
      throw ex;

    logger.error("uncaught exception", ex);
    // ex.printStackTrace(); // temporary - remove in production

    HttpHeaders responseHeaders = new HttpHeaders();
    responseHeaders.setContentType(MediaType.TEXT_PLAIN);
    String msg = ex.getMessage();
      StringWriter sw = new StringWriter();
      PrintWriter p = new PrintWriter(sw);
      ex.printStackTrace(p);
      p.close();
      sw.close();
      msg = sw.toString();
    return new ResponseEntity<>("Throwable exception handled : " + htmlEscape(msg), responseHeaders, HttpStatus.INTERNAL_SERVER_ERROR);
  }
LOOK this could be a problem