final WebMarkupContainer userListContainer = new WebMarkupContainer("userListContainer");
userListContainer.setOutputMarkupId(true);
userListContainer.setEnabled(true);
userListContainer.add(new UserSearchResultPanel("userList", true, null, pageRef, userRestClient));
userListContainer.add(new ClearIndicatingAjaxButton("search", new ResourceModel("search"), pageRef) {
private static final long serialVersionUID = -958724007591692537L;
@Override
protected void onSubmitInternal(final AjaxRequestTarget target, final Form<?> form) {