关键词: 泄漏对象, 动态检测, 堆栈信息, 内存泄漏度

Abstract: Memory leaks occur when objects that are no longer used cannot be released promptly during the execution of programs. After long-term accumulation, leaking objects will reduce system performance and cause the system to crash when they become serious. To solve memory leaks in Java programs, this paper proposes a detection and measurement method of memory leaking objects. Firstly, through tracing the execution of source programs dynamically, this method records stack information periodically and analyzes the suspicious leaking objects in heap. Then it defines a formula for calculating memory leaking confidence, which can measure the influence of different objects on program leaks, thereby confirming the leaked objects. Finally, this paper chooses two open-source programs for verification, and compared with two existing methods, the results show that the proposed method gets higher leak detection rate.

Key words: leaking objects, dynamic detection, stack information, memory leaking confidence