how to check memory leak in java

to Keyedweakreference2. In background thread, check if reference is cleared after OnDestroy, and no GC is triggered.3, if the reference is not cleared, then dump heap to a hprof file and saved to the app file system4. Start Heapanalyzerservice,heapanalyzer in a separate process use haha to analyze the heap dump.5, Heapanalyzer in heap dump according to reference key to find keyedweakreference.6, Heapanalyzer calculate the shortest strong reference pa

(Context.activity_service);int memclass = Activitymanager.getmemoryclass (),//64, in M 3, why memory leaks (memories Leak)? Android uses Android virtual machine to manage memory, programmers just apply for memory to create objects, after creation no longer need to care about how to release the object

In interviews, the interviewer often asks, "Do you know what a memory overflow is?" What is a memory leak? How to avoid it? "With this article, you can answer it."A memory overflow (OOM) means that the program does not have enough memory space for its use when requesting

1190000006852540The main points are three pieces: Static storage: Distributed at compile time, which exists during the entire run of the program. It mainly stores static data and constants. Stack area: When the method executes, local variables inside the method body are created in the stack memory, and the memory is freed automatically after the method finishes. Heap area: A new object is u

[Android] [Memory Leak] InputMethodManager Memory leakage and Solution Symptom: InputMethodManager holds an Activity on the UI of the specified model k_touch_v9, causing the Activity to fail to be recycled. if the Activity is opened again, the old Activity will be released, but the newly opened Activity will be held and cannot be released and recycled. MAT shows

(TextView, "rotation", 0,360); Objectanimator.setrepeatcount (valueanimator.infinite); Objectanimator.start (); } Scenario Four: Handler For handler memory leaks in (Android messaging mechanism--handler work process) Scenario Five: Improper use of third party libraries For the use of some of the third open source frameworks, such as Eventbus,rxjava, failure to unsubscribe before the activity is destroyed can lead to

Test a business data portal for functional testing of the Task manager, found that the IE process has reached the 423,145k, suspected of a memory leak, so I intend to use IE plug-in JS memory leaks dector to detect, However, after some operations that could cause memory leaks, the test results were always normal and no

ValgrindIt is a software development tool for memory debugging, memory leak detection and performance analysis. The name Valgrind is taken from the entrance of the temple of the fallen in Norse mythology. general use mode Valgrind--leak-check=full./a.out ValgrindThe origina

Introduction:Between *java and C + + there is a wall of memory allocation and garbage collection technology that people outside the wall want to come in and the people inside the wall want to come out.For developers engaged in C and C + + program development, in the field of memory management, they are both the highest power of the emperor, but also engaged in th

Introduction to memory leaks Java can guarantee that when there is no reference to the object, the object will be reclaimed by the garbage collector, compared to the C language's own application of the memory itself, the Java programmer is much easier, but does not mean that the Ja