4Object Management Group. Event service specification Version 1.2 [ EB/OL]. [2010 -04 -05]. http://www. omg. org.
5ARULANTHU A B, O'RYAN C, SCHM1DT D C, et al. The design and performance of a scalable ORB architecture for CORBA asyn- chronous messaging [ C]// IFIP/ACM International Conference on Distributed Systems Platforms and Open Distributed Processing. Ber- lin: Springer, 2000:208-230.
6Object Management Group. IDL to Java language mapping specifica- tion Version 1.2 [EB/OL]. [2010 -04 -25]. http://www, omg. org.