exception

java.rmi.NoSuchObjectException: no such object in table

I am writing a very simple RMI server, and I am seeing intermittent java.rmi.NoSuchObjectExceptions in the unit tests. I have a string of remote method calls on the same object, and while the first few go through, the later ones will sometimes fail. I am not doing anything to unregister the server object in between. These error do not...

Strange ClassCastException

This: Timerange longest = Timerange.longest(breaks); if (longest.durationInHours() >= MIN_FREE_HOURS) return true; is OK. But this: if (Timerange.longest(breaks).durationInHours() >= MIN_FREE_HOURS) return true; gives: java.lang.ClassCastException Do you know why?! For simplicity: public static final <T extends Timera...

Python - test that succeeds when exception is not raised

I know about unittest Python module. I know about assertRaises() method of TestCase class. I would like to write a test that succeeds when an exception is not raised. Any hints please? ...

Throwing generic FaultException

I have a WCF service that if something goes wrong throws a generic FaultException. I don't know why, sometimes the clients will catch a non-generic FaultException instead of the generic exception. Does anybody know, what the problem is? ...

"Exception has been thrown by the target of an invocation" error (mscorlib)

Hi, I have a website developed in ASP.Net 2.0 that is throwing the error "Exception has been thrown by the target of an invocation" in the production environment. It was not throwing this error in development. The source is 'mscorlib', and the stack trace says the error at System.RuntimeMethodHandle._InvokeMethodFast. The o...

Terminology - can events be "thrown"?

Twice this week, I've read people write that an event (.net) was "thrown". I've always thought that the verb to use with events is either "fire" or "raise". I thought that "thrown" was used for exceptions, but not events ("raise" can be used for either). Does anyone else find it confusing for events to be "thrown"? ...

java.sql.SQLException: No suitable driver on Mac OS X Attempting to use Derby

Hello, I am getting a java.sql.SQLException: No suitable driver when I am trying to connect to a database with Java. I am on Mac OS 10.5 using the NetBeans IDE. It seems to be having trouble with the EmbeddedDriver, but I'm not sure what I am missing: public class A { Connection conn = null; public A(String URL...

Is there a free alternative to Exception hunter?

I'm switching back and forth between Java and C# and one thing I miss while I'm coding in C# is the enforced exception checking (Although I admit I also find it really irritating sometimes while I'm coding in Java). I'm aware that Exception Hunter can help you track down what exceptions a piece of code might throw but is there a free/ch...

c# wcf - exception thrown when calling open() on proxy class

hi all! I have the following problem, basically i have a WCF service which operates fine in small tests. However when i attempt a batch/load test i get an InvalidOperationException with the message when the open() method is called on the proxy class: "The communication object, System.ServiceModel.Channels.ServiceChannel, cannot be m...

Can you catch exception from inside Application.DoEvents()?

I've encountered a strange difference between a program running in VS2005 and running the executable directly. Essentially, when an exception is thrown in a method inside an Application.DoEvents() call, the exception can be caught when running inside Visual Studio. When running the compiled executable, the exception is not caught and t...

Why would a web part fail on constructor the first time it's being added to a page?

Hello, This question is a bit specific (MOSS2007) and I don't high hopes for getting an answer, but maybe luck will smile upon me. I have a web part that works except the very first time it's being added to a page. It throws an exception inside a constructor when I'm trying to open a connection to a SQL server. The demand for the SqlCl...

Visual Studio/C++: How to turn off certain first-chance exception debug messages?

When I execute my C++ code (which uses the CGAL library) under debug mode, I see a lot of debug messages in the Output window about a first-chance exception CGAL::Uncertain_conversion_exception. I am aware of what a first-chance exception is. Now, how do I turn off the display of debug messages for this one kind of exception (CGAL::Unce...

How to locate a particular exception in a Exception stack

Let us assume that a particular Exception "SomeException" is part of the exception stack, so let us assume ex.InnerException.InnerException.InnerException is of type "SomeException" Is there any built-in API in C# which will try to locate a given exception type in exception stack? Example: SomeException someExp = exp.LocateExceptionI...

How to catch an exception thrown in a critical section?

I'm working on win 32 multithreading with c++. Scenario: I have a function used by multiple threads. This function as a critical sections (or any kind of construct that can lock a resource). In the critical section an exception is thrown. At this point I need to take care of unlocking the resource in the exception catch block. Is there ...

Please help me solve this Runtime Exception in Eclipse

I am using Eclipse and i-series Navigator for database. when I ran my application it is showing: Exception=Exception001{Id=0,Message=java.lang.RuntimeException: Failed to connect to queue manager,Severity=2}], ServiceID=GetCustomerProfile2,Status=2,TransactionID=1} Please suggest what to do? ...

Tools to use to find suppressed exceptions?

I work on a fairly complex Open Source project (opensimulator.org). It's currently sitting around 300 KLOC of C#, and there are a number of places where code has built up to trap and ignore exceptions, which end up disguising subtle bugs. I'm wondering what tools are out there that can produce reports of overly general exception catchin...

Errors in the Windows Forms Editor

I'm currently using Microsoft Visual C# Express Edition (with SP1) for a Project. I'm getting some strange errors in the Forms editor when editing one particular form, the message reads: Type 'System.Windows.Forms.Control' in assembly 'System.Windows.Forms, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089' is not...

How to notify the user about binding errors in silverlight?

To my understanding, binding errors are displayed only during debug mode in Visual Studio's Output window. However, I want to know about broken bindings when the user runs my app, and I want to notify him that something is not working quite right. Is there a way to handle binding exceptions from code, when the datacontext is set, and so...

Would you ever NOT catch an exception, or throw an exception that won't be caught?

I've dealt with instances where I would throw/rethrow an exception knowing that the code surrounding it would catch the specific exception. But is there any time you would want to throw an exception, knowing that it wouldn't be caught? Or at least, NOT catch an exception? Exceptions immediately halt the application unless their handle...

What is the cause of EJB 2.x "reentrant method call detected" Exceptions? How to solve them?

Hi all, I'm mantaining a EJB 2 CMP legacy app runing on a JBoss 4.0.4 GA application server with deployed entity/stateless session beans. All the EJB boilerplate code is generated via XDoclet from the EntityEJB/EntityEJBManager annotations. I've noticed that when my GUI client invokes the facade create method, I have lots of cases of E...