Wcet Predictable Exception Mechanism for Real-Time Java Platform

In order to solve the effects of the time indeterminacy which was caused by the exception thrown and handled of the JVM on the real-time Java platform, the Class Convertor generates an image file in which the exception table is stored in like-linear structure, and which give the class index and superclass index of an exception object directly. When an exception is thrown, exception tables are traversed in linear order to find the match item and get the pointer value where the program will jump to continue. The match time presents a linear change according to the number of exception tables and can be predicted with the number and the location where the match item is in the structure.