Amobile agent system using reflective computation

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In this research, we have proposed an effective development method of mobile agents based on the reflection technology. By using the proposed method, we have also implemented a mobile agent system called Flyingware, which makes use of e-mail as the communication media.The first advantage of the mobile agent system is easiness for programmers to use the system. Conventional mobile agent systems require that ether programmers have to specify all the necessary programs in advance by hand, or necessary programs have to be transferred on demand. In our system, the programmers specify only the object and the method that should be invoked after migration. This easiness is accomplished by use of the reflection technology. Necessary programs are collected by using the reflection technology and transferred automatically. The second advantage of the mobile agent system is use of e-mail as the communication m'edia. This means that no special server or place is needed while the conventional system required such facility. The third advantage is the use of the Java programming language. This enlarges the application field of the implemented mobile agent system.In this research, we have also built two language processing systems, called OpenJava and Javassist based on the reflection technology. Furthermore, we applied the reflection technology to implement parallelizing compilers. We also worked on the safe execution environments for mobile agents.