A system for bidirectional communication using normalized messages via a service engine includes a Java Enterprise Edition (EE) package, a Java Business Integration (JBI) package including a Normalized Message Router (NMR) and a binding component, and the service engine for enabling direct communication between the Java EE package and the JBI package, where the service engine converts a first message from a first protocol to a second protocol, where the first message is sent from the Java EE package to the JBI package, and the service engine converts a second message from the second protocol to the first protocol, where the second message is sent from the JBI package to the Java EE package.