@Test(expected = ConstraintValidationException.class)
public void testMissingRequestContextAttribute() {

    auditLogger = buildAuditLogger(catalogReader);
    Map<String, String> properties = new HashMap<>();
    properties.put("toAccount", "123456");
    properties.put("fromAccount", "111111");
    properties.put("amount", "111.55");
    auditLogger.logEvent("transfer", properties);
}