uncaughtexceptionhandler

Issue with catching RuntimeExceptions as NullPointerExceptions by an uncaught exception handler in Java FX applications

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问题 I read this post JavaFx 8 global exception handling and tried to handle uncaught exceptions in my application. It works fine as described in the post. But when I added a statement which caused a NullPointerException the UncaughtExceptionHandler did not catch this exception. Why ? Is there another thread handling this exception? Or do I have to set the DefaultUncaughtExceptionHandler? I read JavaDocs: Uncaught exception handling is controlled first by the thread, then by the thread's

Android UncaughtExceptionHandler to finish app

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问题 I want to close the app after logging an unhandled exception. After searching here i made the following: public class MyApplication extends Application { //uncaught exceptions private Thread.UncaughtExceptionHandler defaultUEH; // handler listener private Thread.UncaughtExceptionHandler _unCaughtExceptionHandler = new Thread.UncaughtExceptionHandler() { @Override public void uncaughtException(Thread thread, Throwable ex) { ActivityManager am = (ActivityManager)getSystemService(Context

UncaughtExceptionHandler not catching some exceptions

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问题 I have created an UncaughtExceptionHandler as shown in this article. I have also registered this handler to catch exceptions in all threads like this: Thread.setDefaultUncaughtExceptionHandler(new MyExceptionHandler()); However, it is missing some exceptions: Exception occurred during event dispatching: java.lang.RuntimeException: Critical error! at com.acme.MyClass.myMethod(MyClass.java:46) at java.awt.event.InvocationEvent.dispatch(InvocationEvent.java:209) at java.awt.EventQueue

NSSetUncaughtExceptionHandler not catches the exception in swift But Crittercism does it

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问题 Purpose of NSSetUncaughtExceptionHandler is to catch the exception and dump it somewhere so that we can find why the app crashed and what is the exception. In Objective C it catches the exception as expected..Here is the reference But in swift when an exception arises its not caught. Here is the code that I used in didFinishLaunchingWithOptions NSSetUncaughtExceptionHandler { exception in NSUserDefaults.standardUserDefaults().setObject("Exception Details Are \n\nExceptionName--> \(exception

Do errors thrown within UncaughtExceptionHandler get swallowed?

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问题 Thread.UncaughtExceptionHandler states that when the method which handles uncaught exceptions itself throws an exception, that exception will be ignored: void uncaughtException (Thread t, Throwable e): Method invoked when the given thread terminates due to the given uncaught exception. Any exception thrown by this method will be ignored by the Java Virtual Machine. However when I tested it, the JVM did not ignore the exceptions handled by the uncaught exception handler`: public static void

Toast not showing up in UnCaughtExceptionHandler

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问题 I am using this code to handle any uncaught exceptions which might cause my application to crash. public class ExceptionHandler implements java.lang.Thread.UncaughtExceptionHandler { private final Context myContext; public ExceptionHandler(Context context) { myContext = context; } public void uncaughtException(Thread thread, Throwable exception) { Toast.makeText(myContext, "The application has crashed, and a report is sent to the admin", Toast.LENGTH_SHORT).show(); StringWriter stackTrace =

How to re-throw an exception

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问题 In my onCreate() I set an UncaughtException handler as follows: Thread.setDefaultUncaughtExceptionHandler(new Thread.UncaughtExceptionHandler() { @Override public void uncaughtException(Thread thread, Throwable throwable) { Log.e(getMethodName(2), "uncaughtException", throwable); android.os.Process.killProcess(android.os.Process.myPid()); } }); It works OK, but I would like to get back the system's default behavior of displaying the force-close dialog to the user. If I try to replace the

Do errors thrown within UncaughtExceptionHandler get swallowed?

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Thread.UncaughtExceptionHandler states that when the method which handles uncaught exceptions itself throws an exception, that exception will be ignored: void uncaughtException (Thread t, Throwable e): Method invoked when the given thread terminates due to the given uncaught exception. Any exception thrown by this method will be ignored by the Java Virtual Machine. However when I tested it, the JVM did not ignore the exceptions handled by the uncaught exception handler`: public static void main(final String args[]) { Thread.currentThread().setUncaughtExceptionHandler(new Thread

How to re-throw an exception

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In my onCreate() I set an UncaughtException handler as follows: Thread.setDefaultUncaughtExceptionHandler(new Thread.UncaughtExceptionHandler() { @Override public void uncaughtException(Thread thread, Throwable throwable) { Log.e(getMethodName(2), "uncaughtException", throwable); android.os.Process.killProcess(android.os.Process.myPid()); } }); It works OK, but I would like to get back the system's default behavior of displaying the force-close dialog to the user. If I try to replace the KillProcess() call with a throw throwable the compiler complains that I need to surround it with a try

Should use both AppDomain.UnhandledException and Application.DispatcherUnhandledException?

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问题 After reading some excellent posts about the difference between AppDomain.UnhandledException and Application.DispatcherUnhandledException, it appears that I should be handling both. This is because it is significantly more likely the user can recover from an exception thrown by the main UI thread (i.e., Application.DispatcherUnhandledException). Correct? Also, should I also give the user a chance to continue the program for both, or just the Application.DispatcherUnhandledException? Example