exception

How to access exception/stacktrace in Velocity template resolved by web.xml's error-page?

I would like to print the cause of the HTTP Error 500 on my Velocity template but am having difficulty figuring out how this can be done. My web.xml is configured with: <error-page> <error-code>500</error-code> <location>/error/500</location> </error-page> The location is backed by a Spring controller. The 500.vm page is resol...

right usage of std::uncaught_exception in a destructor

There are some articles concluding "never throw an exception from a destructor", and "std::uncaught_exception() is not useful", for example: http://www.gotw.ca/gotw/047.htm (written by Herb Sutter) But it seems that I am not getting the point. So I wrote a small testing example (see below). Since everything is fine with the testing ...

Class Cast Exception

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 ...

SerializationException Occurring Only in Release Mode

Hi, I am working on an ASP.NET web app using Visual Studio 2008 and a third-party library. Things are fine in my development environment. Things are also good if the web app is deployed in Debug configuration. However, when it is deployed in Release mode, SerializationExceptions appear intermittently, breaking other functionality. In ...

How to mark a method as "ignore all handled exception" + "step through"? Even when user has selected "break on all thrown exceptions".

I want to mark a method as "debug step through" even if an exception is thrown (and catched within) the function. This is because 99% of the times I know this function will throw an exception (Assembly.GetTypes), and since this function is in a library I wish to hide this normal exception. (Why did MS not add an exceptionless GetTypes()...

Asynchronous HttpWebRequest giving exception in C# language compact framework?

Hi all, I have pasted the code from msdn, from http://msdn.microsoft.com/en-us/library/system.net.httpwebrequest.begingetrequeststream.aspx in a sample application. But this gives error for contentLengh, so i have provided that. then it executes well. But at following point, it throws exception of InvalidOperationException and NotSuppor...

Hide an access violation on another application

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 t...

How can I get JUnit test (driven from Ant script) to dump the stack of exception that causes failure?

We run JUnit test from Ant script, as follows. When the test failed, I expect it to output the stack dump of the exception that casuses the failure, but it doesn't. Is there any trick to get it dumped? <target description="Run JUnit tests" name="run-junit" depends="build-junit"> <copy file="./AegisLicense.txt" tofile="test/junit/c...

ArgumentException or ArgumentNullException for string parameters?

Far as best practices are concerned, which is better: public void SomeMethod(string str) { if(string.IsNullOrEmpty(str)) { throw new ArgumentException("str cannot be null or empty."); } // do other stuff } or public void SomeMethod(string str) { if(str == null) { throw new ArgumentNullExcep...

C++ Win32 Unhandled Exception Handler

currently I used SetUnhandledExceptionFilter() to provide callback to get information when an unhandled exception was occurred, that callback will provides me with EXCEPTION_RECORD which provides ExceptionAddress. [1]what is actually ExceptionAddress is? does it the address of function / code that gives exception, or the memory address ...

How to catch exceptions from another program (for logging)?

I am working on a tool that monitors a number of applications and ensures they are always running and in a clean state. Some of these applications have unhandled exceptions which do occur periodically and present the 'send crash report' window. I do not have the source code to these applications. Is there any mechanism I could use to ...

regexp exclusion

Hello everyone! I have regexp to change smileys to images. Here it is (?:(?![0]:\)|:\)\)|:-\)\)))(:\)|:-\)) The point is not to change 0:) and :)) and :-)) while changing :) and :-) It works pretty well with :)) and :-)) but somehow still grabs :) in 0:) Where's my mistake? ...

Why is this exception thrown in the visual studio C compiler?

Hello. I am trying to get more adept and my C programming and I was attempting to test out displaying a character from the input stream while inside of the loop that is getting the character. I am using the getchar() method. I am getting an exception thrown at the time that the printf statement in my code is present. (If I comment ou...

Why do I see THROW in a C library?

When I do: less /usr/include/stdio.h (which is only a C library - nothing to do with C++) I see __THROW after quite a few function declarations. Also, comments above a few functions say that 'This function is a possible cancellation point and therefore not marked with __THROW' What is all this for? throw is meant to be for exception ha...

Are C++ exceptions sufficient to implement thread-local storage?

I was commenting on an answer that thread-local storage is nice and recalled another informative discussion about exceptions where I supposed The only special thing about the execution environment within the throw block is that the exception object is referenced by rethrow. Putting two and two together, wouldn't executing an ...

Java implementing Exception Handling

I am trying to implement an OutOfStockException for when the user attempts to buy more items than there are available. I'm not sure if my implementation is correct. Does this look OK to you? public class OutOfStockException extends Exception { public OutOfStockException(){ super(); } public OutOfStockException(St...

BlackBerry - Exception with null message when sending sms using Connector

I used code given but I am getting "IOCancelledException" and "IOException". And IOCancelledException.getMessage() / IOException.getMessage() giving null string, it does not give error message. Please help me understaing reason. class SMSThread extends Thread { Thread myThread; MessageConnection msgConn; String message; ...

Catch Exception in Application Startup (VS.Net)

I'm getting a System.NullReferenceException when my application starts up (after a small login screen) which doesn't crash the entire app but prevents it from loading correctly. How can I get the VS.Net debugger to stop at the error so I can fix it? The output I'm getting in the Immediate Window is: A first chance exception of type 'S...

Message of Javascript exception in C#

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 ...

Calling a Java main function

Hi guys, I am trying to call another JAR's main function. Now, this main function is enclosed under a try and catch block. But when the main call returns a "NullPointerException" the program just crashes instead of catching it. So, for example try { somelibary.main() } catch (Exception e) { System.out.println("Exception Ca...