DeadObjectException when pressure test - java

Our application receives the client's request through AIDL, then executes a processing flow, and finally returns the processing result to the client. When I performed a stress test on the application, I found that the following exception would be thrown every time the complete process was executed about 400 times.
The crash log is:
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

Through the analysis of the memory, it was found that the Handler object was repeatedly created when the AIDL command was initiated, and the Handler object was not cleaned up in time, resulting in a memory leak.

Related

Nativescript angular app breaking with "java.lang.IllegalStateException: Too many receivers, total of 1000, registered for pid"

I've creating a nativescript application which uses the nativescript-barcodescanner plugin to scan and decode qr codes. This application is intended to be used to scan a lot of qr codes, but not in consecutive order. However, after a 1000 scans, the application is breaking with the following exception.
java.lang.RuntimeException: Unable to resume activity {org.nativescript.test/com.google.zxing.client.android.CaptureActivity}: java.lang.IllegalStateException: Too many receivers, total of 1000, registered for pid: 15623, callerPackage: org.nativescript.test
at android.app.ActivityThread.performResumeActivity(ActivityThread.java:4021)
at android.app.ActivityThread.handleResumeActivity(ActivityThread.java:4053)
at android.app.servertransaction.ResumeActivityItem.execute(ResumeActivityItem.java:51)
at android.app.servertransaction.TransactionExecutor.executeLifecycleState(TransactionExecutor.java:145)
at android.app.servertransaction.TransactionExecutor.execute(TransactionExecutor.java:70)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1955)
at android.os.Handler.dispatchMessage(Handler.java:106)
at android.os.Looper.loop(Looper.java:214)
at android.app.ActivityThread.main(ActivityThread.java:7078)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:494)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:975)
Caused by: java.lang.IllegalStateException: Too many receivers, total of 1000, registered for pid: 15623, callerPackage: org.nativescript.test
at android.os.Parcel.createException(Parcel.java:1974)
at android.os.Parcel.readException(Parcel.java:19
// Allocate time for this cycle to end before issueing a validate request. Attempting to fix Fragment issue on some
// mobile devices34)
at android.os.Parcel.readException(Parcel.java:1884)
at android.app.IActivityManager$Stub$Proxy.registerReceiver(IActivityManager.java:3684)
at android.app.ContextImpl.registerReceiverInternal(ContextImpl.java:1567)
at android.app.ContextImpl.registerReceiver(ContextImpl.java:1528)
at android.app.ContextImpl.registerReceiver(ContextImpl.java:1516)
at android.content.ContextWrapper.registerReceiver(ContextWrapper.java:636)
at com.google.zxing.client.android.InactivityTimer.onResume(InactivityTimer.java:69)
at com.google.zxing.client.android.CaptureActivity.onResume(CaptureActivity.java:222)
at android.app.Instrumentation.callActivityOnResume(Instrumentation.java:1416)
at android.app.Activity.performResume(Activity.java:7609)
at android.app.ActivityThread.performResumeActivity(ActivityThread.java:4013)
... 11 more
Caused by: android.os.RemoteException: Remote stack trace:
at com.android.server.am.ActivityManagerService.registerReceiver(ActivityManagerService.java:25447)
at android.app.IActivityManager$Stub.onTransact$registerReceiver$(IActivityManager.java:10896)
at android.app.IActivityManager$Stub.onTransact(IActivityManager.java:126)
at com.android.server.am.ActivityManagerService.onTransact(ActivityManagerService.java:4162)
at android.os.Binder.execTransact(Binder.java:739)
After attempting to debug the issue, from what i've found, it seems that when calling the BarcodeScanner.scan function offered by the nativescript-barcodescanner plugin, an Activity is started for result as per this code, which in turn, a receiver is registered by the google zxing library (used by this plugin). What seems to be the issue is that upon a successful scan, when the Activity returns the result, the google zxing library is not doing the necessary clean ups, resulting with dangling receivers registered. Note that when the scanner is closed by pressing the back button, the clean ups are carried out as expected.
Any help about going around this issue would be appreciated.
Edit: Added link to github repo for reproduction
https://github.com/jeanpaulattard/nativescript-barcodescanner-demo

How to fix `cannot be cast to java.lang.String` in RN?

I got this error in my RN application in Android:
06-06 16:37:54.455 7506-7569/system_process E/AudioTrack: Could not
get audio output for session 729, stream type -1, usage 13, sample
rate 48000, format 0x1, channel mask 0x3, flags 0x4 06-06 16:37:54.455
7506-7569/system_process E/SoundPool: Error creating AudioTrack 06-06
16:37:54.924 1286-1286/? E/EGL_emulation: tid 1286:
eglCreateSyncKHR(1669): error 0x3004 (EGL_BAD_ATTRIBUTE) 06-06
16:37:55.190 11821-11894/com.efiat_rn E/unknown:ReactNative: Exception
in native call
java.lang.ClassCastException: com.facebook.react.bridge.ReadableNativeMap cannot be cast to
java.lang.String
at com.facebook.react.bridge.ReadableNativeMap.getString(ReadableNativeMap.java:168)
at com.facebook.react.modules.dialog.DialogModule.showAlert(DialogModule.java:232)
at java.lang.reflect.Method.invoke(Native Method)
at com.facebook.react.bridge.JavaMethodWrapper.invoke(JavaMethodWrapper.java:372)
at com.facebook.react.bridge.JavaModuleWrapper.invoke(JavaModuleWrapper.java:160)
at com.facebook.react.bridge.queue.NativeRunnable.run(Native Method)
at android.os.Handler.handleCallback(Handler.java:751)
at android.os.Handler.dispatchMessage(Handler.java:95)
at com.facebook.react.bridge.queue.MessageQueueThreadHandler.dispatchMessage(MessageQueueThreadHandler.java:29)
at android.os.Looper.loop(Looper.java:154)
at com.facebook.react.bridge.queue.MessageQueueThreadImpl$3.run(MessageQueueThreadImpl.java:192)
at java.lang.Thread.run(Thread.java:761) 06-06 16:37:55.191 11821-11894/com.efiat_rn E/unknown:ReactNative: Exception in native
call
java.lang.ClassCastException: com.facebook.react.bridge.ReadableNativeMap cannot be cast to
java.lang.String
at com.facebook.react.bridge.ReadableNativeMap.getString(ReadableNativeMap.java:168)
at com.facebook.react.modules.dialog.DialogModule.showAlert(DialogModule.java:232)
at java.lang.reflect.Method.invoke(Native Method)
at com.facebook.react.bridge.JavaMethodWrapper.invoke(JavaMethodWrapper.java:372)
at com.facebook.react.bridge.JavaModuleWrapper.invoke(JavaModuleWrapper.java:160)
at com.facebook.react.bridge.queue.NativeRunnable.run(Native Method)
at android.os.Handler.handleCallback(Handler.java:751)
at android.os.Handler.dispatchMessage(Handler.java:95)
at com.facebook.react.bridge.queue.MessageQueueThreadHandler.dispatchMessage(MessageQueueThreadHandler.java:29)
at android.os.Looper.loop(Looper.java:154)
at com.facebook.react.bridge.queue.MessageQueueThreadImpl$3.run(MessageQueueThreadImpl.java:192)
at java.lang.Thread.run(Thread.java:761)
It runs perfectly fine on iOS version. It don't show me which JS I do wrong. and I have no clue or ideas on how to fix it. It prompts when I launch the application, when I dismiss the error message, I can see a half-load application, but not clickable. Is there any ideas on how can I start the debugging? Thanks.
In ReactNative you are calling a method of the native bridge which requires String parameters. But what you are actually sending is JsonObject.
Example,
const data = {message: "hello"}; // Consider this as your data
if you send this to the bridge, it will create a NativeArray and send it to native layer (But your layer's method expects String).
Now you have to convert the object to String and send it to the native layer
const strData = JSON.stringify(data);
Now send the strData to the native layer
(Comment below if you need more details or you can tell your error
more clearly to get some clear answer)

Android Studio - Application has stopped, but 0 code errors

My android application was running smoothly before i install some Android Studio updates, and asked me to upgrade gradle etc after the update been installed.
Later on, the Android Studio asked me to update my Android Emulator (Emulator Nexus 5X API 24 Android v7.0), since i've made all these changes, my application has been unable to open when i click run. But remember it has no codding errors when i debug etc.
The error message from Android Monitor is:
08-13 14:07:30.735 3889-3889/? E/AndroidRuntime: FATAL EXCEPTION: main
Process: com.smartlegal.law.freeman.smartlegal, PID: 3889
java.lang.RuntimeException: Unable to start activity ComponentInfo{com.smartlegal.law.freeman.smartlegal/com.smartlegal.law.freeman.smartlegal.MainActivity}: java.lang.NullPointerException: Attempt to invoke virtual method 'void android.widget.Button.setOnClickListener(android.view.View$OnClickListener)' on a null object reference
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2646)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2707)
at android.app.ActivityThread.-wrap12(ActivityThread.java)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1460)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:154)
at android.app.ActivityThread.main(ActivityThread.java:6077)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:866)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:756)
Caused by: java.lang.NullPointerException: Attempt to invoke virtual method 'void android.widget.Button.setOnClickListener(android.view.View$OnClickListener)' on a null object reference
at com.smartlegal.law.freeman.smartlegal.MainActivity.onCreate(MainActivity.java:39)
at android.app.Activity.performCreate(Activity.java:6662)
at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1118)
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2599)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2707)
at android.app.ActivityThread.-wrap12(ActivityThread.java)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1460)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:154)
at android.app.ActivityThread.main(ActivityThread.java:6077)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:866)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:756)
08-13 14:07:30.744 3889-3896/? W/art: Suspending all threads took: 5.874ms
Caused by: java.lang.NullPointerException: Attempt to invoke virtual method 'void android.widget.Button.setOnClickListener(android.view.View$OnClickListener)' on a null object reference
As the error states, you're trying to set an onClickListener on a Button that does not exist (returns null). To simplify, when you're defining your Button, you call findViewById to associate the Button in Java with an XML element, but the ID that you are passing is not valid - either you're trying to call the setOnClickListener before you call setContentView, or the ID you are passing to findViewById has a typo or simply does not exist in the XML layout file.
Some more information, such as the code to your MainActivity and the layout file, would be useful to determine the exact cause of your problem.
Yes you're right, i forgot to specify the ID for the editText and Button, that is why it wasnt possible to find them ID on XML. So i've set it up and reloaded the project and it is running smoothly now. Thanks guys for the support.
"As the error states, you're trying to set an onClickListener on a Button that does not exist (returns null). To simplify, when you're defining your Button, you call findViewById to associate the Button in Java with an XML element, but the ID that you are passing is not valid. by: Timothy Langer".

I am getting an error on getInputStream() and getOutputStream methods? [duplicate]

This question already has answers here:
NetworkOnMainThreadException [duplicate]
(5 answers)
Closed 6 years ago.
My goal is to convert an array of floats to a string array and send it to a remote server in my house via a POST request. I am not using sockets.
URL url = new URL("http:// (destination of the remote server) : (port)");
URLConnection connection = url.openConnection();
This is how I am writing my getInputStream() and getOutputStream method and every time I run my code my activity crashes.
OutputStreamWriter writer = new OutputStreamWriter(connection.getOutputStream());
reader = new BufferedReader(new InputStreamReader(connection.getInputStream()));
Everything works but my activity comes to getOutputStream() and it crashes. I tried commenting out the getOutputStream() part then it came to connection.getInputStream() and crashed.
What could be the reason why this isn't working?
StackTrace:
java.lang.RuntimeException: Unable to start activity ComponentInfo{com.hfad.viscosity/com.hfad.viscosity.ProcessData}: android.os.NetworkOnMainThreadException
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2434)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2494)
at android.app.ActivityThread.access$900(ActivityThread.java:157)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1356)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:148)
at android.app.ActivityThread.main(ActivityThread.java:5525)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:730)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:620)
Caused by: android.os.NetworkOnMainThreadException
at android.os.StrictMode$AndroidBlockGuardPolicy.onNetwork(StrictMode.java:1273)
at java.net.InetAddress.lookupHostByName(InetAddress.java:436)
at java.net.InetAddress.getAllByNameImpl(InetAddress.java:252)
at java.net.InetAddress.getAllByName(InetAddress.java:215)
at com.android.okhttp.internal.Network$1.resolveInetAddresses(Network.java:29)
at com.android.okhttp.internal.http.RouteSelector.resetNextInetSocketAddress(RouteSelector.java:188)
at com.android.okhttp.internal.http.RouteSelector.nextProxy(RouteSelector.java:157)
at com.android.okhttp.internal.http.RouteSelector.next(RouteSelector.java:100)
at com.android.okhttp.internal.http.HttpEngine.createNextConnection(HttpEngine.java:357)
at com.android.okhttp.internal.http.HttpEngine.nextConnection(HttpEngine.java:340)
at com.android.okhttp.internal.http.HttpEngine.connect(HttpEngine.java:330)
at com.android.okhttp.internal.http.HttpEngine.sendRequest(HttpEngine.java:248)
at com.android.okhttp.internal.huc.HttpURLConnectionImpl.execute(HttpURLConnectionImpl.java:433)
at com.android.okhttp.internal.huc.HttpURLConnectionImpl.connect(HttpURLConnectionImpl.java:114)
at com.android.okhttp.internal.huc.HttpURLConnectionImpl.getOutputStream(HttpURLConnectionImpl.java:245)
at com.hfad.viscosity.ProcessData.onCreate(ProcessData.java:110)
at android.app.Activity.performCreate(Activity.java:6272)
at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1107)
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2387)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2494) 
at android.app.ActivityThread.access$900(ActivityThread.java:157) 
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1356) 
at android.os.Handler.dispatchMessage(Handler.java:102) 
at android.os.Looper.loop(Looper.java:148) 
at android.app.ActivityThread.main(ActivityThread.java:5525) 
at java.lang.reflect.Method.invoke(Native Method) 
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:730) 
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:620) 
It appears that you are attempting network activities on the main UI thread for the Activity instead of a background thread. It is required for any activity that involves blocking I/O or heavy processing including network activity to happen on a background thread. You would hence want to use the AsyncTask functionality to achieve this use case.
Refer to this SO question for an example
The second thing is that to perform Internet access from your app you need to provide Internet access permissions to your app. Refer to this other SO question that should help you on how to go about providing this permission.
If you are facing any problems even after performing the above steps, then it is recommended that you post your entire source code (if possible or an equivalent example) so that more folks can help you out.

TransactionTooLargeException when appying wallpaper

I know that TransactionTooLargeException occurs when there is a large amount of data being transferred between services in the system. Usually, I would have some kind of control if I were to transfer large amount of data, but in this case, when I'm appying a wallpaper, I don't have that amount of control.
I'm applying a wallpaper by first cropping it with android-image-cropper, and then applying it by
WallpaperManager.setBitmap(bitmap);
...in a separate thread, to avoid overloading the UI thread. Now, when I press "apply wallpaper", and wait for some time, and then return to the homescreen, it works flawlessly, but when I apply the wallpaper and then immediately return to the homescreen, I get the alert that the app has crashed, along with this log:
07-31 18:50:41.611 32720-32720/elementary.elementarywallpapers E/JavaBinder: !!! FAILED BINDER TRANSACTION !!! (parcel size = 16385936)
07-31 18:50:41.614 32720-32720/elementary.elementarywallpapers D/AndroidRuntime: Shutting down VM
07-31 18:50:41.621 32720-32720/elementary.elementarywallpapers E/AndroidRuntime: FATAL EXCEPTION: main
Process: elementary.elementarywallpapers, PID: 32720
java.lang.RuntimeException: android.os.TransactionTooLargeException: data parcel size 16385936 bytes
at android.app.ActivityThread$StopInfo.run(ActivityThread.java:3752)
at android.os.Handler.handleCallback(Handler.java:751)
at android.os.Handler.dispatchMessage(Handler.java:95)
at android.os.Looper.loop(Looper.java:154)
at android.app.ActivityThread.main(ActivityThread.java:6077)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:865)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:755)
Caused by: android.os.TransactionTooLargeException: data parcel size 16385936 bytes
at android.os.BinderProxy.transactNative(Native Method)
at android.os.BinderProxy.transact(Binder.java:615)
at android.app.ActivityManagerProxy.activityStopped(ActivityManagerNative.java:3606)
at android.app.ActivityThread$StopInfo.run(ActivityThread.java:3744)
at android.os.Handler.handleCallback(Handler.java:751) 
at android.os.Handler.dispatchMessage(Handler.java:95) 
at android.os.Looper.loop(Looper.java:154) 
at android.app.ActivityThread.main(ActivityThread.java:6077) 
at java.lang.reflect.Method.invoke(Native Method) 
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:865) 
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:755) 
How can I fix this?

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