use for issues on rethrowing catch exception
In terms of exception handling, this refers to throwing the exception again.
Questions tagged [rethrow]
73 questions
5
votes
1 answer
Save rethrowing function as a non-throwing closure
As far as I understand, rethrows essentially creates two functions from a single declaration/definition, like so:
func f(_ c: () throws -> Void) rethrows { try c()}
// has the same effect as declaring two seperate functions, with the same…
Alexander
- 59,041
- 12
- 98
- 151
5
votes
2 answers
Will C++ throw with no arguments work inside another frame to rethrow an exception?
If I have a code like the following:
try {
doSomething();
} catch (...) {
noteError();
}
void noteError() {
try {
throw;
} catch (std::exception &err) {
std::cerr << "Note known error here: " << err.what();
} catch (...) {
…
WilliamKF
- 41,123
- 68
- 193
- 295
4
votes
1 answer
Why do "throw" and "throw ex" have the same behavior in this case?
I'm flabbergasted. I always thought that throw by itself in a catch block would throw the exception at hand without altering the stack trace, but that throw ex in a catch block would alter the stack trace to show the exception originating at the…
Stephan G
- 3,289
- 4
- 30
- 49
4
votes
1 answer
Java - More Precise Rethrown Feature
on oracle oficial site write:(http://docs.oracle.com/javase/7/docs/technotes/guides/language/catch-multiple.html#rethrow)
In detail, in Java SE 7 and later, when you declare one or more exception types in a catch clause, and rethrow the exception…
Luiz Fernando
- 185
- 7
4
votes
1 answer
Throw inside Catch in C#
Found something yesterday that made me realise that I'm most likely still missing fundamental tidbits about C#.
I have a Stateless Service Fabric Application. I have a try-catch around the main while-loop. If I throw an exception in this loop, it…
Kagemand Andersen
- 1,470
- 2
- 16
- 30
4
votes
3 answers
How to detect a bad way of re-throwing a C# Exception using StyleCop or VS2010?
My colleagues are seasoned C++ hackers switching to .Net. One of the mistakes that they make unintentionally is writing code like this:
catch(ArgumentExcepttion ae)
{
// Code here logs the exception message
// And this is supposed to…
Hamish Grubijan
- 10,562
- 23
- 99
- 147
3
votes
4 answers
An Exception Handling Class
What is the best practice for handling exceptions without having to put try/catch blocks everywhere?
I had the idea of creating a class that is devoted to receiving and handling exceptions, but I am wondering if its a good design idea. Such a class…
Sean Thoman
- 7,429
- 6
- 56
- 103
3
votes
2 answers
C++: object slicing and exceptions
In an interview I was asked why catching exceptions by value can be a problem and I answered that this can cause object slicing. And this is what I find in the Internet, for example here: https://www.viva64.com/en/w/v746/
But now I am trying to…
Andrey Rubliov
- 1,359
- 2
- 17
- 24
3
votes
1 answer
Should I rethrow an exception in this case?
Is this approach ok? Am I handling exceptions correctly? See my class:
class Email extends String
{
protected function validate($email)
{
try{
parent::validate($email);
} catch(InvalidArgumentException $e) {
throw $e;
}
…
fabio
- 2,269
- 5
- 22
- 34
3
votes
1 answer
Exception thrown in finally and catch block
have question on exception thrown in catch and finally block:
class MyExc1 extends Exception {}
class MyExc2 extends Exception {}
class MyExc3 extends MyExc2 {}
public class C1 {
public static void main(String[] args) throws Exception {
…
Vijaya Raghavan
- 111
- 4
3
votes
2 answers
Rethrowing an exception in C#
I have some code which catches the exception, rolls back the transaction and then rethrow the exception.
catch ( Exception exSys ) {
bqBusinessQuery.RollBackTransaction();
throw exSys ;
}
If I use this code, VS Code analysis throws…
jitendragarg
- 945
- 1
- 14
- 54
3
votes
2 answers
Why does ReSharper recommend the removal of its own fix?
ReSharper recommends rethrowing an exception and then, when I do that, it says the entire catch clause is redundant anyway, and suggests it be removed.
I am using this code (from MethodMan here):
public static DataTable ExecuteDataSet(string sql,…
B. Clay Shannon-B. Crow Raven
- 8,547
- 144
- 472
- 862
2
votes
0 answers
Any downsides to rethrowing the *cause* of a checked exception as an unchecked exception?
I am writing a library in which I use checked exceptions internally as it helps to make sure that all paths handle certain exceptional cases. However, I don't want to burden the users of my library with these checked exceptions because of this rule…
john16384
- 7,800
- 2
- 30
- 44
2
votes
0 answers
Groovy catch a parent Exception but NOT a children Exception
(context: integrating with an application -Jenkins- with various plugins not all with good design)
I have these exception:
public class AbortException extends IOException
and in some cases I want to catch IOException but avoid catching the…
Vincenzo Melandri
- 81
- 5
2
votes
1 answer
std::rethrow_exception(nullptr) undefined behavior or bad_exception?
I have a code snippet where I call rethrow_exception with nullptr as argument.
The documentation says the argument should be non-null, but I want to know, if I pass nullptr, is the behavior undefined or known?
I am getting bad_exception everytime.…
Ishita
- 489
- 5
- 15