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2
votes
1answer
128 views

What are the guidelines for either throwing an exception or failing silently for nonvalid arguments? [duplicate]

If you look at XContainer.Add(object content) method you can see that id does not require content to be not null. It just does nothing in case of null. However List.AddRange(IEnumerable collection) ...
2
votes
1answer
340 views

Why would one transform a checked exception to an unchecked exception? [duplicate]

My buddy told me today that some programmers transform a checked exception (e.g. EJBException, SQLException...) to an unchecked (RuntimeException?) My buddy explained a call stack where if you change ...
1
vote
1answer
484 views

Can AspectJ or AOP in general be used to test exception handling?

I'm reading a book's chapter ("Controlled Exception Test" in "Testing Object-Oriented Testing") about testing exception handling in a running system (not at unit level). The conclusion is that it is ...
1
vote
2answers
138 views

Understanding unit testing for dynamically changing condition

I was trying to understand how to write unit tests for a few days now. I'm confused with following scenarios in the existing code. In first function the max value changes depending on the object ...
2
votes
2answers
325 views

We need a custom strategy for collecting unhandled application exceptions. What are our options?

"Unhandled exception" term In .NET Framework, unhandled exceptions are the exceptions which were not handled by the application itself, and result in a crash. In a case of a desktop application, it ...
38
votes
7answers
3k views

Are there legitimate reasons for returning exception objects instead of throwing them?

This question is intended to apply to any OO programming language that supports exception handling; I am using C# for illustrative purposes only. Exceptions are usually intended to be raised when an ...
12
votes
5answers
872 views

Strengthening code with possibly useless exception handling

Is it a good practice to implement useless exception handling, just in case another part of the code is not coded correctly? Basic example A simple one, so I don't loose everybody :). Let's say I'm ...
0
votes
1answer
135 views

Exception handling class: static or object-oriented?

I am working in a windows service (using VB.Net) for internal use of my department. When ever a certain type of exception (FooException for now on) is captured, I follow the same logic: Log the ...
1
vote
3answers
220 views

Am I handling my exceptions in a sensible manner?

I'm still restructuring the code I have been given to update on my current work project, and I've come to the point where I'm looking at how the code handles an 'exceptional' input, that doesn't ...
0
votes
1answer
2k views

Exception Handling in Java web application

I know exception handling is a topic often discussed in the world of Java. I've read a few threads on here and SO as well. ...
1
vote
2answers
344 views

Wrapping specific checked exception in domain unchecked ones? [duplicate]

Uncle Bob says in Clean Code book that Unchecked Exceptions should be used. Now JDK has some checked exceptions: IOException, IllegalAccessException etc. which cannot be avoided. In my application ...
16
votes
8answers
2k views

Error handling - Should a program fail on errors or silently ignore them

I'm writing a simple little program to transmit MIDI over a network. I know that the program will encounter transmission problems and / or other exception situations that I won't be able to predict. ...
8
votes
3answers
7k views

Throwing an exception inside finally

Static code analyzers like Fortify "complain" when an exception might be thrown inside a finally block, saying that Using a throw statement inside a finally block breaks the logical progression ...
5
votes
7answers
2k views

Is it a acceptable approach to put try catch wherever null pointer exception occurs?

There are instances where the references to objects, fields, variables etc can be null and there might be a possible occurrence of Null Pointer exception occurring at that point. Is is a permanent ...
0
votes
2answers
345 views

Why does File.Open in .Net throw exceptions and not follow exception handling best practices? [duplicate]

I have read at many places including this - http://msdn.microsoft.com/en-us/library/seyhszts.aspx - that you should use exception handling when something is truly exceptional. The .Net File.Open ...
1
vote
2answers
301 views

c++ exceptions vs. preliminary error condition checks

Preamble One of the concepts used in writing Python code is "Easier to ask for forgiveness than permission", aka EAFP. Literally this means that instead of doing checks, whether an operation is ...
4
votes
1answer
463 views

Why would I use Control.Exception in Haskell?

I'm trying to really master Haskell error handling, and I've gotten to the point where I don't understand why I would use Control.Exception instead of Control.Monad.Error. The way I can see it, I can ...
2
votes
1answer
103 views

Reporting and handling asynchronous process errors to a client

I have a product with two separate applications. The core of the product lives in the database (oracle) and runs according to a schedule. The other is a client application (currently ASP.NET MVC3) ...
3
votes
2answers
412 views

Best way to throw exception and avoid code duplication

I am currently writing code and want to make sure all the params that get passed to a function/method are valid. Since I am writing in PHP I don't have access to all the facilities of other languages ...
7
votes
2answers
1k views

Decision for Unchecked Exceptions in Scala

As a java programmer, I have always been critical of Unchecked Exceptions. Mostly programmers use it as an en-route to coding easiness only to create trouble later. Also the programs (though untidy) ...
1
vote
1answer
426 views

Central Exception Handler

Recently I've been thinking about a general ExceptionHandler, that I could initialize once in my app context and inject it everywhere. The idea that it will have quite simple interface with just ...
6
votes
3answers
2k views

Exception Handling Frequency/Log Detail

I am working on a fairly complex .NET application that interacts with another application. Many single-line statements are possible culprits for throwing an Exception and there is often nothing I can ...
2
votes
4answers
225 views

How to initialize object which may be used in catch clause?

I've seen this sort of pattern in code before: //pseudo C# code var exInfo = null; //Line A try { var p = SomeProperty; //Line B exInfo = new ExceptionMessage("The property was " + p); ...
6
votes
2answers
431 views

Where should I handle fatal exceptions

Suppose I have a controller that loads a file and hands it over to the processing. Should I handle the exception in the file loader and return Null if something is wrong, or should I throw the ...
2
votes
3answers
2k views

Best method in PHP for the Error Handling ? Convert all PHP errors (warnings notices etc) to exceptions?

What is the best method in PHP for the Error Handling ? is there a way in PHP to Convert all PHP errors (warnings notices etc) to exceptions ? what the best way/practise to error handling ? ...
30
votes
10answers
10k views

Is catching general exceptions really a bad thing?

I typically agree with most code analysis warnings, and I try to adhere to them. However, I'm having a harder time with this one: CA1031: Do not catch general exception types I understand the ...
0
votes
1answer
1k views

Generic way of handling exceptions in windows phone? [closed]

I mean what are some of the ways other programmers deal with exception for example, when an error occurs when accessing a web service for say. If an example cant be given for windows phone, give the ...
8
votes
1answer
1k views

Best exception handling practices or recommendations? [closed]

I think the two main problems with my programs are my code structure/organization and my error handling. I'm reading Code Complete 2, but I need something to read for working with potential problems. ...
8
votes
3answers
581 views

Is it a security flaw to log the class and method name when an exception occurs?

I have the following : public class doCheck(){ public void performCheck(){ try { perform all checks...... } catch(Exception e){ ...
2
votes
3answers
930 views

Good practice or service for monitoring unhandled application errors for a small organization

I'm working with multiple software with varying ways of monitoring for errors. When I make software, I usually send email with the stack trace to admins(usually me). Some customer software is ...
6
votes
4answers
361 views

Logging errors caused by exceptions deep in the application

What are best-practices for logging deep within an application's source? Is it bad practice to have multiple event log entries for a single error? For example, let's say that I have an ETL system ...
9
votes
6answers
2k views

Maybe monad vs exceptions

I wonder what are the advantages of Maybe monad over exceptions? It looks like Maybe is just explicit (and rather space-consuming) way of try..catch syntax. update Please note that I'm intentionally ...
8
votes
3answers
1k views

“how bad” is unrelated code in try-catch-finally block?

This is a related Q: Is use of finally clause for doing work after return bad style/dangerous? In the referenced Q, the finally code is related to the structure used and the necessity of ...
3
votes
3answers
134 views

Using Exception Emails as a System Status Indicator

I'm working through our bug list today and I'm trying to clear up/fix issues that we commonly receive exception emails for. Although all the exceptions (so far) are handled, some don't actually ...
42
votes
8answers
8k views

Defensive Programming vs Exception Handling?

I'm working through the book "Head First Python" (it's my language to learn this year) and I got to a section where they argue about two code techniques: Defensive coding vs Exception handling. Here ...
18
votes
5answers
5k views

should I throw exception from constructor?

I know I can throw exception from constructor in PHP but should I do it? For example, if a parameter's value is not as I expected it. Or should I defer throwing an exception till a method is invoked. ...
8
votes
8answers
1k views

Using a try-finally (without catch) vs enum-state validation

I have been reading the advice on this question about how an exception should be dealt with as close to where it is raised as possible. My dilemma on the best practice is whether one should use a ...
2
votes
1answer
563 views

How would you use Redis for Exception Handling?

I was reading this transcript of an interview with a GitHub developer and he was describing how they use Redis: Q: You mentioned using Redis. How do you use that? A: We use Redis for exception ...
49
votes
7answers
31k views

Why use try … finally without a catch clause?

The classical way to program is with try / catch but when is it appropriate to use try without catch? In Python the following appears legal and can make sense: try: #do work finally: #do ...
2
votes
6answers
622 views

How assertive should I be in handling exceptions in objects?

I have been writing in C# 4.0 a lot lately and trying to write as lean as possible. As such, I have not been using the classic try/catch blocks and using statements as often. I understand the general ...
2
votes
3answers
749 views

What do you think of this Exception handling practice

I'm working on a project that includes a lot of creating/manipulating and reading JSONObjects and arrays but not in a systematic way. So there is JSON code everywhere. It is ok for me except that ...
1
vote
3answers
707 views

C++ and system exceptions

Why standard C++ doesn't respect system (foreign or hardware) exceptions? E.g. when null pointer dereference occurs, stack isn't unwound, destructors aren't called, and RAII doesn't work. The ...
5
votes
2answers
525 views

Should exceptions of a subclass extend the superclass exceptions or my own namespace?

Our library extends another (third-party) library. When we create a child class in our library, and want to throw exceptions, should those exceptions extend the exceptions from the parent class or ...
20
votes
4answers
2k views

How to deal with checked exceptions that cannot ever be thrown

Example: foobar = new InputStreamReader(p.getInputStream(), "ISO-8859-1"); Since the encoding is hardcoded and correct, the constructor will never throw the UnsupportedEncodingException declared in ...
27
votes
11answers
10k views

Is it good practice to catch a checked exception and throw a RuntimeException?

I read some code of a colleague and found that he often catches various exceptions and then always throws a 'RuntimeException' instead. I always thought this is very bad practice. Am I wrong?
14
votes
2answers
1k views

Abstract exception super type

If throwing System.Exception is considered so bad, why wasn't Exception made abstract in the first place? That way, it would not be possible to call: throw new Exception("Error occurred."); This ...
26
votes
11answers
12k views

Is using nested try-catch blocks an anti-pattern?

Is this an antipattern? It is an acceptable practice? try { //do something } catch (Exception e) { try { //do something in the same line, but being less ambitious ...
16
votes
10answers
1k views

Why not use the word bug instead of exception? [closed]

If we refer to exceptions as bugs, why not just call it a bug in the first place instead of an exception? If in the code it's called exception and as soon as it occurs it's called a bug. Then why not ...
9
votes
4answers
647 views

Using “catching exceptions” to improve readability, Good or Bad?

In the section When to Use Exception in The Pragmatic Programmer, the book writes that instead of: retcode = OK; if (socket.read(name) != OK) { retcode = BAD_READ; } else { ...
31
votes
5answers
2k views

Why are brackets required for try-catch?

In various languages (Java at least, think also C#?) you can do things like if( condition ) singleStatement; while( condition ) singleStatement; for( var; condition; increment ) ...