exception-handling

问题 This question already has answers here : Java uncaught global exception handler (3 answers) Closed 4 years ago . Well ! Thanks for having found the answer. I accepted the duplicate since it is exactly what I wanted and it is well explained. Thanks to everybody for your answers :) Does anyone have advice or some idea on how to make a custom exception handler in Java ? I mean modifying the standard Java exception handling method for code-uncatched Exceptions , Errors and more generically

问题 When aborting the execution of a thread I'm always doubting between a graceful exit with an event handler like this: int result = WaitHandle.WaitAny(handles); if (result = WAIT_FINALIZE) FinalizeAndExit(); and using the event to signal the thread it must terminate or just handling the ThreadAbortException to finalize the thread... try { // Main execution } catch(ThreadAbortException e) { // FinalizeAndExit(); } finally { } I'm usually inclined to use the ThreadAbortException approach since it

问题 This is the Exception message thrown by Gen_server when its not started. (ankit@127.0.0.1)32> R11 = system_warning:self_test("SysWarn"). ** exception exit: {noproc, {gen_server,call, [system_warning_sup, {start_child, {system_warning_SysWarn, {system_warning,start_link,[{system_warning_SysWarn}]}, permanent,10,worker, [system_warning]}}, infinity]}} in function gen_server:call/3 in call from system_warning_sup:'-start_child/1-lc$^0/1-0-'/1 in call from system_warning:self_test/1 (ankit@127.0

问题 This question already has answers here : Closed 7 years ago . Possible Duplicate: What does assert do? assert tests the programmer's assumption during development without writing exception handlers for an exception This is what i got, when i was searching about the assert . Apart from this, people also said, it is alternative of exception handling. Assertion will come into the picture when you don't want to take the time to write the exception handling code. But, i didn't get the working and

问题 I have resource class which itself's talks with a internal service. This resource acts a rest API for the service. The service layer can throw unexpected exceptions, thus the resource should handle those handled unexpected exceptions and log it. I am using dropwizard framework which in turns use jersey. It goes like this. @PATH(/user) @GET public Response getUser(@QueryParam("id") String userId) { assertNotNull(userId); try { User user = service.getUser(userId); return Response.ok(user).build

问题 I have a WPF application that communicates with a WCF service. I'm currently calling my WCF service from my ViewModels (I'm using the MVVM pattern) using the following async based pattern: public async override void MyCommandImplementation() { using (var proxy = new MyProxy()) { var something = await proxy.GetSomethingAsync(); this.MyProperty = something; } } As I'm following the MVVM pattern, I have ICommand public properties that are exposed by my ViewModels, so associated command

问题 I'm running a program that downloads files from a web sit. I've introduced one exception handling urllib.error.HTTPError, but now I'm getting from time to time additional errors that I'm not sure how to capture: http.client.IncompleteRead. Do I just add the following to the code at the bottom? except http.client.IncompleteRead: How many exceptions do I have to add to make sure the program doesn't stop? And do I have to add them all in the same Except statement or in several Except statements.

问题 This question already has answers here : Python: eliminating stack traces into library code? (4 answers) Closed 6 years ago . Assume I have the following script: def do_not_call_on_one(i): if i == 1: raise ValueError("You never listen.") print "Success!" do_not_call_on_one(1) On excution, you will see the following traceback: Traceback (most recent call last): File "test.py", line 7, in <module> do_not_call_on_one(1) File "test.py", line 3, in do_not_call_on_one raise ValueError("You never

问题 I was referring few articles to create global exception handler using @ControllerAdvice for my rest api project using spring. The purpose of this is to send proper formatted response to the client in the case of exception occurred. In some articles they have added Throwable or Exception in global exception handler. Should I replace it with RunTimeException as this block is for exception occurred at runtime? Exception Handler code: @ControllerAdvice public class GlobalExceptionHandler{

问题 I have created a function where I take in as a parameter an inputstream and return an iterator consisting of a string. I accomplish this as follows: def lineEntry(fileInputStream:InputStream):Iterator[String] = { Source.fromInputStream(fileInputStream).getLines() } I use the method as follows: val fStream = getSomeInputStreamFromSource() lineEntry(fStream).foreach{ processTheLine(_) } Now it is quite possible that the method lineEntry might blow up if it encounters a bad character while it's