This issue is created to investigate dropping interim java.corba from the build.
The interim build of java.corba has historically been needed for rmic -iiop but it is possible that this is no longer needed in the build since the JMX remote API dropped support for the IIOP transport (JDK-8043937).
If we can drop interim_java.corba from the build then it provides some opportunities to clean-up, esp. code that has been forced to use core reflection to access new APIs. It also helps makes the build more robust because it doesn't have to rely on JDK-internal APIs in the boot JDK.