压力测试时的DeadObjectException

Question

我们的应用程序通过AIDL接收客户端的请求，然后执行处理流程，最后将处理结果返回给客户端。当我在应用程序上执行压力测试时，我发现每次执行大约400次完整的进程都会抛出以下异常。崩溃日志为：

11-05-06-20-59.583 E CrashHandler.java[101](handleExceptions)[1]Exception: java.lang.RuntimeException: Adding window failed
    at android.view.ViewRootImpl.setView(ViewRootImpl.java:652)
    at android.view.WindowManagerGlobal.addView(WindowManagerGlobal.java:342)
    at android.view.WindowManagerImpl.addView(WindowManagerImpl.java:94)
    at android.app.ActivityThread.handleResumeActivity(ActivityThread.java:3518)
    at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2733)
    at android.app.ActivityThread.-wrap12(ActivityThread.java)
    at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1478)
    at android.os.Handler.dispatchMessage(Handler.java:102)
    at android.os.Looper.loop(Looper.java:154)
    at android.app.ActivityThread.main(ActivityThread.java:6121)
    at java.lang.reflect.Method.invoke(Native Method)
    at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:889)
    at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:779)
Caused by: android.os.DeadObjectException: Transaction failed on small parcel; remote process probably died
    at android.os.BinderProxy.transactNative(Native Method)
    at android.os.BinderProxy.transact(Binder.java:623)
    at android.view.IWindowSession$Stub$Proxy.addToDisplay(IWindowSession.java:828)
    at android.view.ViewRootImpl.setView(ViewRootImpl.java:640)
    ... 12 more

Answer 1

通过对内存的分析发现，在启动AIDL命令时，Handler对象被重复创建，没有及时清理，导致内存泄漏。