ExceptionHelper ex = new ExceptionHelper(t);
final WebMarkupContainer parent = new WebMarkupContainer(Constants.PAYLOAD_ID);
add(parent);
Label exception = new Label(Constants.NODE_ID, ex.asString());
exception.setEscapeModelStrings(false);
exception.add(new AttributeModifier("class", "exception"));
parent.add(exception);
if (ex.getLines() > 50) {
AttributeModifier sam = new AttributeModifier("style",