Possible Improvements In Java Decompiler Through Redesigning

• Main Authors: Kai-Fu Chang, 張凱富
• Other Authors: 李允中
• Format: Others
• Language: en_US
• Published: 2017
• Online Access: http://ndltd.ncl.edu.tw/handle/287c9j

碩士 === 國立臺灣大學 === 資訊工程學研究所 === 105 === The ultimate goal of our research is to manage to decompile .class files into Java source code files. However, the current state-of-the-art decompilation technology cannot fully accomplish this goal for several reasons. At the time of publication of this article, most of the current available decompilers either produced exceptions during decompilation or failed to decompile Jave bytecodes to logically equivalent Java source code. The others just resulted in dumping assembly-like code to terminate decompilation. Hence, in order to reach the ultimate goal, we conducted the reverse-engineering on the ”Procyon” decompilation frameworks which we considered the best decompilation tool by far. In our research, we have analyzed the designs of Procyon frameworks by identifying the underlying design patterns, reconstructed the requirements by the designs, and finally proposed our redesign as the results of our research that we think is an improvement. Our redesign mainly improves time efficiency and reduces memory footprints. In the future, we will implement our design to complete Procyon frameworks and hope that we will fix most existing bugs to achieve a breakthrough of successfully building a decompiler that delivers.