Interface OMGVMCID

The higher 20 bits of any CORBA exception hold "Vendor Minor Codeset ID" (VMCID), for instance 0x4F4D0000 (OMG standard), 0x54410000 (TAO), 0x4A430000 (JacORB), 0x49540000 (IONA), 0x53550000 (Sun).

GNU Classpath official vendor minor code set id is 0x47430000 ("GC\x00\x00"), and the reserved space spans till 0x47430FFF, allowing to use up to 4096 Classpath specific exceptions. It was assigned 30/09/2005 by OMG Vice President Andrew Watson.

The standard minor codes for the standard system exceptions are prefaced by the VMCID assigned to OMG, defined as 0x4F4D0000 (the code of the minor field for the standard exception with minor code 1 is 0x4F4D0001). Within a vendor assigned space, the assignment of values to minor codes is left to the vendor.

The VMCID 0 and 0xFFFFF0000 are reserved for experimental use.