How to clear elytron caching-realm using JMX Mbean in JBoss EAP 7+ ?

Issue

• After moving from legacy security to Elytron, the existing code for the Mbean method to clear the caching-realm is not working. What is the equivalent method in Elytron for the code below ?

MBeanServerConnection mbeanServerConnection = (MBeanServerConnection) ManagementFactory.getPlatformMBeanServer();
ObjectName mbeanName = new ObjectName("jboss.as:subsystem=security,security-domain="+SECURITY_DOMAIN_NAME);
Object[] params = {userName};
String[] signature = {String.class.getName()};
mbeanServerConnection.invoke(mbeanName, "flushCache", params, signature);