JShrink: In-Depth Investigation into Debloating Modern Java Applications
Modern software is bloated. Demand for new functionality has led developers to include more and more features, many of which become unneeded or unused as software evolves. This phenomenon, known as software bloat, results in software consuming more resources than it otherwise needs to. How to effectively and automatically debloat software is a long-standing problem in software engineering. Various debloating techniques have been proposed since the late 1990s. However, many of these techniques are built upon pure static analysis and have yet to be extended and evaluated in the context of modern Java applications where dynamic language features are prevalent.
To this end, we develop an end-to-end bytecode debloating framework called JShrink. It augments traditional static reachability analysis with dynamic profiling and type dependency analysis and renovates existing bytecode transformations to account for new language features in modern Java. We highlight several nuanced technical challenges that must be handled properly and examine behavior preservation of debloated software via regression testing. We find that (1) JShrink is able to debloat our real-world Java benchmark suite by up to 47% (14% on average); (2) accounting for dynamic language features is indeed crucial to ensure behavior preservation—reducing 98% of test failures incurred by a purely static equivalent, Jax, and 84% for ProGuard; and (3) compared with purely dynamic approaches, integrating static analysis with dynamic profiling makes the debloated software more robust to unseen test executions—in 22 out of 26 projects, the debloated software ran successfully under new tests.
Tue 10 NovDisplayed time zone: (UTC) Coordinated Universal Time change
01:30 - 02:00 | |||
01:30 5mTalk | A Study of Call Graph Construction for JVM-Hosted Languages Journal First Karim Ali University of Alberta, Xiaoni Lai Google, Zhaoyi Luo Microsoft, Ondřej Lhoták University of Waterloo, Julian Dolby IBM Research, USA, Frank Tip Northeastern University Pre-print Media Attached | ||
01:33 1mTalk | Change Impact Analysis in Simulink Designs of Embedded Systems Industry Papers Bennett Mackenzie McMaster University, Canada, Vera Pantelic McMaster University, Canada, Gordon Marks McMaster University, Canada, Stephen Wynn-Williams McMaster University, Canada, Gehan Selim McMaster University, Canada, Mark Lawford McMaster, Alan Wassyng McMaster University, Canada, Moustapha Diab FCA, USA, Feisel Weslati FCA, USA DOI | ||
01:35 1mTalk | Dads: Dynamic Slicing Continuously-Running Distributed Programs with Budget Constraints Tool Demos Xiaoqin Fu Washington State University, Haipeng Cai Washington State University, USA, Li Li Monash University, Australia DOI | ||
01:37 1mTalk | JShrink: In-Depth Investigation into Debloating Modern Java Applications Research Papers Bobby Bruce University of California at Davis, USA, Tianyi Zhang Harvard University, USA, Jaspreet Arora University of California at Los Angeles, USA, Guoqing Harry Xu University of California at Los Angeles, Miryung Kim University of California at Los Angeles, USA DOI | ||
01:39 1mTalk | Making Symbolic Execution Promising by Learning Aggressive State-Pruning Strategy Research Papers DOI | ||
01:41 19mTalk | Conversations on Analysis 2 Research Papers Karim Ali University of Alberta, Pengyu Nie University of Texas at Austin, USA, SooYoung Chae , Xiaoqin Fu Washington State University, Hoda Khalil Carleton University, M: Shin Hwei Tan Southern University of Science and Technology | ||