In C++ throw; when executed inside a catch block rethrows the currently caught exception outside the block. In this answer an idea of exception dispatcher is brought up as a solution to reducing code duplication when using complex exception handling often: try { CodeThatMightThrow(); } catch(...) { ExceptionHandler(); } void E...
While looking through the Spring MVC framework I noticed that, unless I misunderstand, its developers favor throws Exception instead of throwing multiple exceptions. I realize that at the core of this question is the checked versus unchecked exceptions debate, avoiding that religious war, is it a good practice to use throws generic exce...
It used to be that if an exception got raised and propagated far enough up the call stack, Application's main loop would handle it and give you a dialog box. That behavior seems to be broken under Windows Vista. If any exception reaches that level, Vista steps in and says the program "has stopped working," when it used to be perfectly...
I often have some problems when using try-and-catch: 1) Some variables need to be declared inside the try brackets otherwise they will not be in scope 2) Ultimately even my return statement ends up having to be in the try bracket but then the method doesn't return anything. What is the proper way to get around this sort of problem. A...
Question by abstract example Suppose you have 2 methods: DoJob1(), DoJob2(). Each of them has transaction-like behavior, that is, either does its job or reports an error. How should I write a method which executes DoJob1() then DoJob2(), but is transaction-like itself, that is, guarantees the roll-back of the action performed by DoJob1...
Duplicate of: http://stackoverflow.com/questions/57383/in-c-how-can-i-rethrow-innerexception-without-losing-stack-trace I have some operations that I invoke asynchronously on a background thread. Sometimes, things go bad. When this happens, I tend to get a TargetInvocationException, which, while appropriate, is quite useless. What I ...
I'm not sure I'm completely happy that throwing exceptions in web services is a good idea. I wouldnt mind as much if it wasn't for the stack trace. This is not something I wan't. I have researched around several implementations and there really doesn't seem to be a consensus on this. CampaignMonitor for example does return a Result obj...
I thought throwing an exception is good practice to let it bubble back up to the UI or somewhere where you log the exception and notify the user about it. Why does resharper say it is redundant? try { File.Open("FileNotFound.txt", FileMode.Open); } catch { throw; } ...
At what point during development do you typically implement your exception handlers? Do you write them at the same time as you write the surrounding code, or do you write your code and then come back to "harden" it later? I typically do the latter so that I can see exactly where and how my code fails, but I worry that my code isn't as ...
I would like to be able, at compile time, to ask any given method what possible Exceptions might get thrown by invoking it. The list of Exceptions should include any uncaught Exception that might get thrown in any nested method invokation. Caught Exceptions should not be included in the list as I'm only interested in the Exceptions that ...
Hi All, I want to know whether is it a good idea to catch exception based on unique index of sql in java. i want to catch an exception like 'duplicate entry for 1-0' if so then handle exception otherwise insert properly in database table? ...
Hi. I am looking for a simple solution to do Exception Logging combined with Error Handling in my ASP.Net MVC 1.0 application. I've read lots of articles, including Questions posted here on StackOverflow, which all provide varying solutions for different situations. I am still unable to come up with a solution that suits my needs. Here...
I am relatively new to VBA (Java/Python are more my thing, along with Haskell). One thing that has shocked and surprised me about VBA is the lack of any "obvious" way to do proper structured error handling. What are some good patterns for error handling in VBA? In particular, what should I do in this situation: ... some code ... ... s...
In JBoss 4.2.2 (on JDK5), I'm noticing this behavior. Is there a configuration or other way to prevent it? If I have code like this: try { doSomething(); } catch (Exception e) { throw new EJBException(e); } The resulting stack trace (when caught and logged) will be: EJBException .... at(..... at(..... caused by: NullPoint...
Hello world! Is there any "convert" function in MS SQL server that allows to cast types safely(without throwing exception). I need something like "tryParse" in C# lang but as SQL statement. More detailed, I need the following statement returns zero or any else but throwing exception. select convert(float, 'fjsdhf') thanks in advance...
"The major difference between a thing that might go wrong and a thing that cannot possibly go wrong is that when a thing that cannot possibly go wrong goes wrong it usually turns out to be impossible to get at or repair." -Douglas Adams I have an class FileItems. FileItems constructor takes a file, and throws an exce...
I have simple application with single AppDomain which is periodicaly launched on a server. Sometimes unhandled exception occurs in the aplication and default abort/retry/ignore dialog pops up. I need to somehow prevent the edialog from showing and just output the exception on StrErr and close the application. So I enclosed all the code i...
I’m used to having try/catch blocks in every method. The reason for this is so that I can catch every exception at the point of infraction and log it. I understand, from my reading and conversations with others, that this isn’t a popular view. One should only catch what one is prepared to handle. However, if I don’t catch at the point of...
i was working with a small routine that is used to create a database connection: Before public DbConnection GetConnection(String connectionName) { ConnectionStringSettings cs= ConfigurationManager.ConnectionStrings[connectionName]; DbProviderFactory factory = DbProviderFactories.GetFactory(cs.ProviderName); DbConnection conn =...
Is there any way to get at least someinformation inside of here? ... catch(...) { std::cerr<<"Unhandled exception"<<std::endl; } I have this as a last resort around all my code. Would it be better to let it crash, because then I at least could get a crash report? ...