All Questions
Tagged with javaexceptions
149 questions
3votes
3answers
384views
How to handle checked exceptions on interface contract in Java
I am starting a project in Java and ran into the following situation. The application requires a persistence layer for a certain document type. This could be a MySql database, an AWS Dynamo DB ...
1vote
4answers
349views
Combining multiple input validations into one exception
In order to make sure methods fail fast under invalid arguments, I usually do validation at the start of a method. If I'm verifying multiple predicates, this leads to a few lines of checkNotNull or ...
- 121
4votes
5answers
3kviews
The best way to handle exceptions?
I have the following method, which needs to return a List, but exceptions might occur along the way, and I don't want to handle them in my application, mainly because I don't even know how to handle ...
1vote
5answers
210views
End method in normal flow versus exception flow
Consider the two following examples: public Something fetchSomething(String key) { if(somethingsMap.containsKey(key)) { return somethingsMap.get(key); } throw new ...
- 121
0votes
1answer
263views
How to correctly extend runtime exception?
We have a GraphQL server which sends data to the front end client. We have other tenants who will use our sever and host their code. I want to create a system where they all can create any custom ...
- 109
0votes
2answers
617views
Is Authentication a good use case for a checked exception according to Effective Java (Bloch)?
There's a section about use of checked exceptions in Josh Bloch Effective Java and I find it a bit abstract to understand what he means by saying "when a user can recover from it". ...
- 109
5votes
6answers
3kviews
Java Exception Error Enumerations Anti-pattern
Over the years I've many times seen folks enumerate error codes for exceptions in Java. I generally have felt this leads to more tedious code and does not provide value. For example, there will be an ...
- 271
21votes
4answers
4kviews
How do non-RAII languages free resources during stack unwinding?
C++ features deterministic order of calling destructors up the call stack until the exception is handled somewhere. To my knowledge, neither Java nor (object oriented) Python provide this. In those ...
- 7,159
-2votes
2answers
11kviews
What are the possible *root causes* of a SocketTimeoutException?
I understand that a SocketTimeoutException (I'm in Java, but I guess it's the same in just about every major language) happens after a server or client doesn't respond after a period of time, let say ...
0votes
3answers
180views
Communicating error conditions in client API for remote RESTful server, what's the best way?
I'm writing an application based on a RESTful API located in a server (written in Python). An Android app will access the API endpoints to get, post, put or delete data. The usual. The server has a ...
0votes
2answers
322views
Is it bad to use checked exceptions as API response?
Consider the following code: public class User { private String password; public void changePassword( String oldPassword, String newPassword) throws ...
- 705
0votes
1answer
208views
Exception handling with failure atomicity in desktop applications
When it comes to exception handling, there are many guidelines and best practices on the web. On of them is to throw early, catch late, or even Don't Catch. So when facing an exception, the current ...
- 151
1vote
2answers
342views
Best Practice: Unit test coverage vs. in-method sanity checks [duplicate]
I have a code-coverage requirement of of a certain percentage, and face the following tradeoff: Should I sacrifice in-method sanity checks and error handling for ease of (unit-) testability? Lets ...
- 269
1vote
2answers
140views
Are the exceptions used in BeanValidation/JAX-RS's ExceptionMapper an anti pattern?
I am reading a lot about patterns and code structure and something that bothers me is BeanValidation's way to handle errors. I like Java and think that BeanValidation is easy to use, but it seems to ...
- 121
-1votes
2answers
912views
Where to place exception handling while using Decorator design pattern
How to design a service layer structure that will be resistant to exceptions. Let's say I have a simple OrderService service, this service performs basic operations - saving an order. public interface ...
- 299
