"immortal memory" is defined by the Java real-time specification for objects that are "immortal" -- i.e. they are never garbage collected. IMHO, I don't see why special reference handling is needed for this. And I am assuming, during a GC cycle, references to immortal objects, just get ignored.
Regardless, I don't use a real-time JVM, so this is speculation. Hopefully, someone who has, can shed some light on this.
thanks for the prompt reply...theoretically i knew that...but i need to se that in a programme....ny ways...i apreciate that.... If we write a wait() method inside the synchronised block...will the execution of the current thread be stopped and will that be moved to the next waiting thread?