Jakarta XML RPC explained

Jakarta XML RPC (JAX-RPC; formerly Java API for XML Based RPC) allows a Jakarta EE application to invoke a Java-based web service with a known description while still being consistent with its WSDL description. JAX-RPC is one of the Java XML programming APIs. It can be seen as Java RMIs over web services. JAX-RPC 2.0 was renamed JAX-WS 2.0 (Java API for XML Web Services). JAX-RPC 1 is deprecated with Java EE 6.^[1] The JAX-RPC service utilizes W3C (World Wide Web Consortium) standards like WSDL (Web Service Description Language).^[2] The core API classes are located in the Java package .

• Supports web-based services and clients using RPC or remote procedure calls which are based on XML.
• Allow for web service accessibility through Java APIs which in turn allows for communication between different Java applications.
• Enables client communication with web service of different language and running on separate platform.

It works as follows:

1. A Java program executes a method on a stub (local object representing the remote service)
2. The stub executes routines in the JAX-RPC Runtime System (RS)
3. The RS converts the remote method invocation into a SOAP message
4. The RS transmits the message as an HTTP request

The advantage of such a method is that it allows the Web service to be implemented at server-side as a Servlet or EJB container. Thus, Servlet or EJB applications are made available through Web services.

Jakarta XML RPC (JAX-RPC) was removed from Jakarta EE 9.^[3]

External links

• • JAX-RPC 2.0 renamed to JAX-WS 2.0

Notes and References

1. https://stackoverflow.com/questions/3307516/jax-ws-vs-jax-rpc/3314458#3314458 JAX-WS vs. JAX-RPC - stackoverflow.com
2. http://www.qwhatis.com/what-is-jax-rpc/ What is JAX-RPC - qwhatis.com
3. News: Kaltepoth . Christian . 2020-01-17 . mdy . A deep dive into the Jakarta EE 9 Release Plan . JAXenter . Software & Support Media . 2020-12-05.