unhandled-exception | 易学教程

unhandled exception type error

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问题 I have never gotten this error before so I am not sure what to do or what it means Unhandled exception type OperationApplicationException It occurs in this code: public void putSettings(SharedPreferences pref){ ArrayList<ContentProviderOperation> ops = new ArrayList<ContentProviderOperation>(); ops.add(ContentProviderOperation.newUpdate(Data.CONTENT_URI) .withSelection(Data.RAW_CONTACT_ID + \"=?\", new String[]{String.valueOf(pref.getString(SmsPrefs.ID, \"\"))}) .withValue(Data.MIMETYPE,\"vnd

Why is “throws Exception” necessary when calling a function?

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问题 class throwseg1 { void show() throws Exception { throw new Exception(\"my.own.Exception\"); } void show2() throws Exception // Why throws is necessary here ? { show(); } void show3() throws Exception // Why throws is necessary here ? { show2(); } public static void main(String s[]) throws Exception // Why throws is necessary here ? { throwseg1 o1 = new throwseg1(); o1.show3(); } } Why compiler reports that methods show2() , show3() , and main() have unreported exception Exception that must be

Java 8: How do I work with exception throwing methods in streams?

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问题 Suppose I have a class and a method class A { void foo() throws Exception() { ... } } Now I would like to call foo for each instance of A delivered by a stream like: void bar() throws Exception { Stream<A> as = ... as.forEach(a -> a.foo()); } Question: How do I properly handle the exception? The code does not compile on my machine because I do not handle the possible exceptions that can be thrown by foo(). The throws Exception of bar seems to be useless here. Why is that? 回答1: You need to

catch all unhandled exceptions in ASP.NET Web Api

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问题 How do I catch all unhandled exceptions that occur in ASP.NET Web Api so that I can log them? So far I have tried: Create and register an ExceptionHandlingAttribute Implement an Application_Error method in Global.asax.cs Subscribe to AppDomain.CurrentDomain.UnhandledException Subscribe to TaskScheduler.UnobservedTaskException The ExceptionHandlingAttribute successfully handles exceptions that are thrown within controller action methods and action filters, but other exceptions are not handled,

How to find which promises are unhandled in Node.js UnhandledPromiseRejectionWarning?

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问题 Node.js from version 7 has async/await syntactic sugar for handling promises and now in my code the following warning comes up quite often: (node:11057) UnhandledPromiseRejectionWarning: Unhandled promise rejection (rejection id: 1): ReferenceError: Error: Can\'t set headers after they are sent. (node:11057) DeprecationWarning: Unhandled promise rejections are deprecated. In the future, promise rejections that are not handled will terminate the Node.js process with a non-zero exit code.

CryptographicException: Padding is invalid and cannot be removed and Validation of viewstate MAC failed

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问题 Monitoring my global exception logs this error seems to be impossible to remove no matter what I do, I thought I finally got rid of it but it\'s back again. You can see a strack trace of the error on a similar post here. Notes about the environment: IIS 6.0, .NET 3.5 SP1 single server ASP.NET application Steps already taken: <system.web> <machineKey validationKey=\"big encryption key\" decryptionKey=\"big decryption key\" validation=\"SHA1\" decryption=\"AES\" /> In my Page Base for all of my

What is an unhandled promise rejection?

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问题 For learning Angular 2, I am trying their tutorial. I am getting an error like this: (node:4796) UnhandledPromiseRejectionWarning: Unhandled promise rejection (r ejection id: 1): Error: spawn cmd ENOENT [1] (node:4796) DeprecationWarning: Unhandled promise rejections are deprecated. In the future, promise rejections that are not handled will terminate the Node. js process with a non-zero exit code. I went through different questions and answers in SO but could not find out what an \"Unhandled

How can I make something that catches all 'unhandled' exceptions in a WinForms application?

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Up until now, I just put a try/catch block around the Application.Run in the Program.cs entry point to the program. This catches all exceptions well enough in Debug mode, but when I run the program without the debug mode, exceptions don't get handled anymore. I get the unhandled exception box. I don't want this to happen. I want all exceptions to be caught when running in non-debug mode. The program has multiple threads and preferably all exceptions from them get caught by the same handler; I want to log exceptions in the DB. Does anyone have any advice in how to do this? Take a look at the