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• Java - JSON Null Exception

  - by user1112111

  Hi, I'm using JSON to deserialize an input string that contains a null value for certain hashmap property. Does anyone have any clue why this exception occurs ? Is it possible that null is not accepted as a value Is this configurable somehow ? input sample: {"prop1":"val1", "prop2":123, "prop3":null} stacktrace: net.sf.json.JSONException:…

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• Hide an access violation on another application

  - by Fernando

  Hi, I have an application that sometimes causes an access violation on exit. This is quite unpredictable and all attempts to locate the bug have been unsuccesful so far. The bug is harmless, as no data is lost, so I was thinking if it might be possible to just hide it. Is it possible to have another app launch the buggy one and catch the…

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• Catch All (handled or unhandled) Exceptions

  - by andySF

  Hi, I want to catch all exceptions raised (handled or unhandled) to log them. for unhandled i use ThreadExceptionEventHandler and UnhandledExceptionEventHandler but i want to catch and exceptions that are in try catch block with or without (Exception e). It's possible to inherit the exceptions class to create a general event?

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• Ada: Adding an exception in a separate procedure when reading a file

  - by yCalleecharan

  This is a follow-up of this question: Ada: reading from a file . I would like to add an exception that checks if the file that I'm opening actually exists or not. I have made a separate procedure to avoid code clutter. Here is the main code test_read.adb: with Ada.Text_IO; use Ada.Text_IO; with Ada.Long_Float_Text_IO; with…

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• Php mkdir( ) exception handling

  - by Doodle

  mkdir() is working correctly this question is more about catching an error. Instead of printing this when the directory exists I would just like to have it write to a message to me in a custom log. How do I create this exception. Warning: mkdir() [function.mkdir]: File exists

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• .NET Application broken on one PC, unhandleable exception

  - by Bobby

  Hello people. I have a .NET 2.0 application with nothing fancy in it. It worked until yesterday on every PC I installed or copied it to, no matter if 2.0, 3.0, 3.5 or 3.5 SP1 was installed, no matter if it was Win2000, XP or even Win7 (in total 100+ machines). Yesterday I did my normal installation procedure and wanted to…

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• Message of Javascript exception in C#

  - by Peter Pan

  Hi, i'm doing some unit tests in Silverlight. Therefore i'm invoking some javascript functions. i'd like to know how to get the message of the exception thrown in javascript. Is this possible? Thanks! Peter

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• When is it appropriate to use error codes?

  - by Jim Hurne

  In languages that support exception objects (Java, C#), when is it appropriate to use error codes? Is the use of error codes ever appropriate in typical enterprise applications? Many well-known software systems employ error codes (and a corresponding error code reference). Some examples include operating systems (Windows),…

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• Unhandled Exception in c#

  - by nightcoder1

  Hello i am currently trying to run a web crawler through the terminal. it compiles fine and the debug does not find any errors, however i get the following error which i do not understand. any ideas on how to get rid of this error would be much appreciated Unhandled Exception: System.ArgumentOutOfRangeException: startIndex…

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• Visual Studio 2010 (Argument Exception)

  - by Tolu

  Hi, I get the following exception: 'Cannot find the method on the object instance' when I hover over a property of one of my classes in Visual Studio 2010. Any ideas?

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• Why should I not wrap every block in "try"-"catch"?

  - by Konrad

  I have always been of the belief that if a method can throw an exception then it is reckless not to protect this call with a meaningful try block. I just posted 'You should ALWAYS wrap calls that can throw in try, catch blocks.' to this question and was told that it was 'remarkably bad advice' - I'd like to understand why.…

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• Servlet Exception + Class Cast Exception + Glassfish + Netbeans + JPA Entities + Vaadin

  - by Random Joe

  Hi all, I get this error: StandardWrapperValve[Vaadin Servlet]: PWC1406: Servlet.service() for servlet Vaadin Servlet threw exception java.lang.ClassCastException: com.delhi.entities.Category cannot be cast to com.delhi.entities.Category when I try to run my webapps on glassfish v2. Category is a JPA entity object the…

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• How to simulate an unhandled exception in Java

  - by Martin Wiboe

  Hi, I am creating some multi-threaded code, and I have created a JobDispatcher class that creates threads. I want this object to handle any unhandled exceptions in the worker threads, and so I am using Thread.setUncaughtExceptionHandler(this); Now, I would like to test this functionality - how can I generate an…

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• Ruby Exception or Error?

  - by Ell

  I have noticed that in the Ruby exception hierarchy, there are "errors" such as ArgumentError and there are "exceptions" such as SignalException. Is there a certain practise of naming exceptions? thanks in advance, ell.

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• Exception handling best practices

  - by Costa

  Hi Is there any performance problem or something else about letting the exception to propagate, or it is better to write it like this try { } catch { throw; }

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• Try catch finally blocks.. do i still need them?

  - by Phil

  I am handling errors via my global.asax in this method: Dim CurrentException As Exception CurrentException = Server.GetLastError() Dim LogFilePath As String = Server.MapPath("~/Error/" & DateTime.Now.ToString("dd-MM-yy.HH.mm") & ".txt") Dim sw As System.IO.StreamWriter = New…

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• LINQ query null reference exception

  - by user289082

  Hi! I have the next query: var bPermisos = from b in ruc.Permisos where b.IdUsuario == cu.Id select new Permisos(){ Id=b.Id, …

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• Class Cast Exception

  - by iaagty

  why do i get this exception? Map myHash = null myHash = (HashMap)Collections.synchronizedMap(new HashMap()); If i try to use this hashmap, i get java.lang.ClassCastException

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• Scala: Can't catch exception thrown inside a closure

  - by Dmitriy

  Disclaimer: absolute novice in Scala :( I have the following defined: def tryAndReport(body: Unit) : Unit = { try { body } catch { case e: MySpecificException => doSomethingUseful } } I call it like this: tryAndReport{ someCodeThatThrowsMySpecificException()…

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• How to catch this type of exceptions ?

  - by Lukas Šalkauskas

  I'm starting getting tired of this exception. Can't handle it, even so I'm using this: AppDomain.CurrentDomain.UnhandledException += new UnhandledExceptionEventHandler(CurrentDomain_UnhandledException); Still no success, Can anyone explain me, how I should handle it in a nice…

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• setContentView gives an exception

  - by sukitha

  I have a button and onClick it changes the contentView by setContentView (int layoutResID). It works fine. But if you take the focus to the button by the trackball(making it yellow) and tap on it, it gives the exception. java.lang.IllegalArgumentException: parameter must be a…

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• iPhone Exception Handling

  - by Coocoo4Cocoa

  I have one crash in my iPhone application that does throw an NSException. The crash reports are completely ambiguous in where the error is and what exactly is causing it. Is there a smart way for me to set a top level exception handler somewhere to see what is causing it? I…

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• Problem with Ajax [SYS.webforms.pagerequestmanagerserver exception]

  - by Homam

  I'm new in web development, I have a problem in a web application after deployment (it's not appeared in my development machine), The error in IE after enable the debug mode: SYS.webforms.pagerequestmanagerserver error exception has been thrown by the target of an…

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• ASP.NET Security Exception

  - by Neo1975

  I moved an ASP.NET application from a XP to a new server and now I have this exception: 'System.Security.Permissions.SecurityPermission, mscorlib, Version=2.0.0.0, Culture=neutral, On this line code: System.Threading.Thread.CurrentThread.CurrentCulture …

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• Exception Specification.

  - by Knowing me knowing you

  Does Exception specification is a part of method signature? What I mean is: public void someMethod(String myString) throws IOException is 'throws IOException' a part of a signature of this method? Thanks

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