[javaee-spec users] [jsr366-experts] Proposed Optionality of CORBA / IIOP interop

From: Linda DeMichiel <>
Date: Thu, 01 Oct 2015 12:00:39 -0700

When CORBA support was first added to Java SE, distributed objects
were a popular way to structure applications, and CORBA provided a
standard protocol to interact with non-Java applications as an
alternative to the Java-specific JRMP protocol used by RMI. This was
a natural fit for EJB, which started as a distributed object
technology for enterprise applications, and thus CORBA support was a
required part of Java EE.

The industry has learned much from CORBA and has since moved on, first
to SOAP web services and most recently to REST web services. REST web
services generally provide a better way to interoperate between
distributed components of an application, and between applications
written in multiple languages.

We believe it is time to deemphasize CORBA support and make it
optional in the platform. The first step here would be to make it
Proposed Optional in Java EE 8. CORBA support is a required component
of Java SE 8, which would not change. The additional requirements
related to CORBA in Java EE 8, such as the use of RMI-IIOP with EJB,
would be made Proposed Optional.

Since the EJB 2.x remote interfaces (EJBHome and EJBObject interfaces)
require the use of RMI-IIOP, we propose that support for the EJB 2.x
client view (EJBHome, EJBObject, EJBLocalHome, EJBLocalObject) be made
Proposed Optional as well, since it was superseded by the simplications
of EJB 3.0 that were made as part of Java EE 5. Note that support for
remote EJBs is still required, since the remote interfaces defined by
EJB 3.0 are not required to use CORBA. In addition, EJBs can be used
to provide both REST and SOAP-based web services for remote access.

Please let us know whether you support this proposed change or not.