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GUI exploration is a widely adopted technique to test GUI programs, which traverses the elements of screens during the user interaction and simultaneously constructs the GUI model to describe window transitions. Specific to Android apps, an elaborate GUI model should take Android characteristics into consideration. We propose a GUI exploration approach that dynamically acquires the information of...
Program instrumentation is a widely used technique in dynamic analysis and testing, which makes use of probe code inserted to the target program to monitor its behaviors, or log runtime information for off-line analysis. There are a number of automatic tools for instrumentation on the source or byte code of Java programs. However, few works address this issue on the register-based Dalvik byte-code...
Android devices include many embedded resources such as Camera, Media Player and Sensors. These resources require programmers to explicitly request and release them. Missing release operations might cause serious problems such as performance degradation or system crash. This kind of defects is called resource leak. Despite a large body of existing works on testing and analyzing Android apps, there...
Resource leak is a common bug in Android applications (apps for short). In general, it is caused by missing release operations of the resources provided by Android (like Camera, Media Player and Sensors) that require programmers to explicitly release them. It might lead to several serious problems for the app and system, such as performance degradation and system crash. This paper presents Relda2,...
Fixing bugs according to bug reports is a labor-intensive work for developers and automatic techniques can effectively decrease the manual efforts. A feasible solution is to fix specific bugs by static analysis and code instrumentation. In this paper, we present a light-weight approach to fixing the resource leak bugs that exist widely in Android apps while guaranteeing the safety that the patches...
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