54 questions
1
vote
1
answer
597
views
How to make vitest fail fast after first known test failure
I am using Vitest for testing and would like it to fail fast upon first error. The reason is that I'm using it within git bisect and don't need to waste time on the whole test run once there is an ...
- 7,137
-1
votes
1
answer
46
views
Generate Fail Fast scenario using Multiple Thread in JAVA
I need a scenario to generate ConcurrentModificationException using multi-thread. Please have a look at the below code, here I am getting IllegalThreadStateException.
Not sure why this is happening ...
- 481
27
votes
3
answers
5k
views
Null checking with primary constructor in C# 12
I using C# 12.
In C# 12 I can use primary constructor:
public class UserService(IUnitOfWork uow) : IUserService
{
}
Before C# 12 I used null checking for items that I inject in constructor:
public ...
- 748
1
vote
1
answer
920
views
Crash C# Application and Generate Dumps
I'm trying to generate dumps for my C# application,
I used the FailFast method to "Immediately terminates a process after writing a message to the Windows Application event log, and then includes ...
- 715
1
vote
1
answer
98
views
How can I change my Iterator to be a Fast-fail Iterator?
I'm trying to understand how to modify the Iterator of my Linked List to be fail-fast.
I understand what it means for an Iterator to be fail-fast, but I don't know how exactly should I change my ...
1
vote
0
answers
3k
views
Error : The application requested process termination through System.Environment.FailFast(string message)
i am in a little bit of a pickle, so about 3 weeks ago i start working on my own wpf project, for some reason when i minimize my window, it crashes (i am just using windowstate to minimize ) and my ...
- 17
4
votes
1
answer
296
views
is there a "fail fast" option for flutter tests?
to save time and money both locally and in CICD
I would like to add "fail fast" to my flutter tests
but I cannot find it in the official docs
is there a way to do that?
- 597
-3
votes
1
answer
275
views
How can we handle the Java ConcurrentModificationException using try-catch?
I am trying to handle the java ConcurrentModificationException exception using try-catch block but still I am getting the same error when compiling the code.
import java.util.*;
public class failFast{
...
0
votes
2
answers
2k
views
Fail Fast When Kafka Consumer Can't Connect
For my own purposes, I need the Spring Boot application to stop if the Kafka Consumer can't connect to the broker.
I mean, when Kafka Consumer trying to pool messages, we can see the following logs:
[...
- 522
1
vote
0
answers
851
views
Tomcat maxThreads & acceptCount tuning for Fail-Fast
I would like to tune Tomcat to fail-fast in case of any issues when all threads are occupied ( for example, waiting for a database connection if suddenly database starts to perform badly ).
I checked ...
- 1,519
2
votes
1
answer
346
views
java.util.ConcurrentModificationException while mutating an object
I am iterating over a List of CustomObject and while doing this iteration, I am mutating this object by adding a tag to tags list of this custom object. I am not adding or removing any CustomObject to ...
- 1,268
2
votes
1
answer
1k
views
Spring boot app will not fail fast when custom transaction manager fails to connect
I am making a spring boot app with a custom transactionManager with its own datasource like so. Btw I'm using hikariCP as the datasource
@Configuration
@EnableTransactionManagement
@...
- 533
1
vote
1
answer
1k
views
Implementing a fail-fast design with promises in JavaScript
I'm not sure if "fail-fast" is the best way to describe this methodology, but ever since I started to learn about programming I have always been taught to design functions like this:
function ...
- 904
4
votes
1
answer
63
views
Why I'm not getting ConcurrentModificationException while removing element from ArrayList during iteration [duplicate]
I am using the following code to loop through an arraylist and then removing one element from the arraylist.
Here i'm expecting ConcurrentModificationException. But didn't get that exception. ...
- 346
1
vote
2
answers
699
views
How Fail-fast Iterator works internally? [duplicate]
I know what is a fail-fast and fail-safe iterator.
Fail-Fast iterators immediately throw ConcurrentModificationException if there is a structural modification of the collection.
Fail-Safe doesn't ...
- 109
9
votes
3
answers
30k
views
How to use failFast in dynamic pipeline in Jenkins
I have pipeline which has dynamic parallel stages and I want my pipeline to fail fast, if any of the stage fail. I tried to add failFast: true but my pipeline is stuck at "Failed at Stage ABC".
...
- 91
-3
votes
1
answer
409
views
Linux: How to cat stdout of a process until the end, but stop and return a non-zero code if certain string appears?
We have a tool that runs tests, but does return an error code if they fail.
The tool runs the tests after starting logging in through SSH to a custom console (not bash) and issuing a command. All ...
- 46.7k
1
vote
2
answers
789
views
Will Environment.Exit(int) kill my application with treads running unmanaged code?
I have a windows service which runs unmanaged code (using DllImport) in different threads.
Sometimes, the unmanaged code 'hangs'. Think of while (true) ;. When that happens, I need to kill the entire ...
- 1,284
0
votes
1
answer
445
views
How can I make JAXB to fail when a mandatory element is missing?
I'm trying to add some forward compatibility to a Java application calling a Web Service at work, but JAXB seems to behave backward on the subject...
The application use the wsdl2java Maven plugin to ...
- 409
1
vote
0
answers
703
views
Is there an elegant way run Go module tests with nested packages in parallel in a fail fast manner?
I have a Go project that uses modules. The module contains many packages, which are nested.
When I let Go figure out the package structure by passing ./... to go test it runs the tests in parallel (...
- 827
1
vote
3
answers
453
views
Java - Will concurrent modification exception occur while using classic for loop?
Is there is a chance for getting concurrent modification exception occur while using classic for loop?
import java.util.*;
class IterTest{
public static void main(String[] args){
List<...
- 26.3k
1
vote
2
answers
986
views
What will Environment.FailFast do in .NET Core, when deployed to a Linux environment?
The docs for this method say:
Immediately terminates a process after writing a message to the Windows Application event log, and then includes the message and optional exception information in ...
- 11.4k
1
vote
0
answers
199
views
throw exceptions for unknown Spring properties
I made a very silly mistake in my Spring Boot app's YAML config:
---
spring:
profiles: local
...
___
spring:
profiles: foo
...
---
spring:
profiles:
active: bar
include: ...
- 6,712
1
vote
0
answers
68
views
Fail-Fast Iterator for an Stack
I want to implement a Fail-Fast Iterator to remove Entrys from my own List and test it on correct behaviour.
The List holds Elements of the type MyEntry.
These Entrys hold an Generic Value and a ...
- 25
0
votes
1
answer
247
views
How to stop existing request execution to stop and just run fallback method in hystrix
In hystrix,I am using execution.isolation.thread.timeoutInMilliseconds this configuration to limit the response in some specific time else go for fallback method,But this setting is also executing the ...
- 131
2
votes
0
answers
36
views
ArrayList Failfast ConcurrentModificationException [duplicate]
package com.test;
import java.util.ArrayList;
import java.util.Iterator;
public class TestList {
public static void main(String[] args) {
ArrayList<String> list = new ArrayList&...
-1
votes
1
answer
2k
views
Why we need fail fast and fail safe software design? [closed]
We know Java has fail-fast and fail-safe iteration design.
I want to know , why we need these basically. Is there any fundamental reason for this separation? . What is the benefit of this design?.
...
- 26.3k
43
votes
5
answers
35k
views
How to make Spring server to start even if database is down?
I'm using a Spring Boot(1.4.7) & MyBatis.
spring.main1.datasource.url=jdbc:mariadb://192.168.0.11:3306/testdb?useUnicode=true&characterEncoding=utf8&autoReconnect=true&socketTimeout=...
- 443
2
votes
2
answers
72
views
Why isn't ConcurrentModificationException being thrown here?
Look at this little piece of code:
ArrayList al = new ArrayList();
al.add("AA");
al.add("AB");
al.add("AC");
Iterator it = al.iterator();
while(it.hasNext()){
String s = (String)it.next();
if(s....
- 3,984
0
votes
1
answer
55
views
Fail Safe Fail Fast Example
ConcurrentHashMap<String, Integer> hm = new ConcurrentHashMap<>();
hm.put("1", 1);
hm.put("2", 2);
hm.put("3", 3);
Iterator<String> itr = hm.keySet().iterator();
...
- 1
1
vote
2
answers
93
views
Declaring an Iterator before adding elements to a Collection
If you create your own Iterable container class and retrieve a java.util.Iterator over its elements, is there any coding pattern according to which any further additions of elements in the container ...
- 2,885
1
vote
2
answers
520
views
bash on ubuntu 16: set -e not inheriting inside subshell
When I run this command
set -e; echo $(echo "$-");
I get himBH as the output. I was expecting the letter e to be included in the output. Whats going on?
I'm on Ubuntu 16.04.1 LTS with
GNU bash, ...
- 8,109
4
votes
0
answers
253
views
Protractor-fail-fast npm fails spec and doesn't run the rest specs (tests) in config file (using Protractor with Jasmine)
I have an issue while using npm protractor-fail-fast. ( https://www.npmjs.com/package/protractor-fail-fast )
If one spec file is failed, the rest specs will be NOT executed (NOT GOOD).
I'm searching ...
1
vote
0
answers
152
views
How do I throw an exception when I get multiple elements but I'm supposed to get only one?
I'm worried about this code:
knex('person').where('id','=', 1).then(result => {
const person = result[0]; // the code I worry - result should contain only ONE element
});
If I was using C#, I ...
- 8,105
35
votes
3
answers
17k
views
Gracefully handling corrupted state exceptions
Related to this question, I would like to force CLR to let my .NET 4.5.2 app catch Corrupted State Exceptions, for the sole purpose of logging them and then terminating the application. What's the ...
- 4,434
19
votes
2
answers
35k
views
Hystrix Configuration
I am trying to implement hystrix for my application using hystrix-javanica.
I have configured hystrix-configuration.properties as below
hystrix.command.default.execution.isolation.strategy=SEMAPHORE
...
- 429
0
votes
2
answers
1k
views
Multiple threads using iterator.remove() on a single collection returning fail-fast iterator
Oracle says
Note that Iterator.remove is the only safe way to modify a collection during iteration; the behavior is unspecified if the underlying collection is modified in any other way while the ...
- 3,984
0
votes
1
answer
145
views
Why Hashmap fail-fast not happen in the resize function? (for multiple thread race condition issue)
All, I was trying to understand the multiple thread race condition issue for the Hashmap resize function.
As I read from here. The race condition issue will cause the infinite loop link for the entry ...
- 11.8k
1
vote
0
answers
121
views
Webservice functional/integration test with Junit
The question aims to find a better solution than mine.
I have the following REQUIREMENTS for my integration tests:
Each integration test is implemented in a single test class.
The methods in a test ...
- 3,347
3
votes
1
answer
83
views
Can I override `$` or `[[` to throw an error instead of NULL when asking for a missing list element?
My hunch is this is an abuse of the R language and there's a good reason this doesn't happen. But I find this to be a perpetual source of insidious errors in code that I'm trying to debug:
MWE
list....
- 7,293
0
votes
1
answer
81
views
Why Iterators fail fast and are they truly fail fast?
Iterators in Java are fail-fast. If an iterator values change while it is being iterated over, an exception is thrown.
Is this purely to be safe? I am sure that in some cases, it doesn't matter that ...
- 10.3k
2
votes
7
answers
858
views
Fail fast iterators in Java
public class Alpha {
public static void main(String[] args) {
ArrayList<String> al = new ArrayList<String>();
al.add("a");
al.add("b");
al.add("c");
...
- 105
1
vote
0
answers
815
views
Spring Batch: OutOfMemoryError swallowed
As part of a larger application, I set up a Spring Batch job that is made up by just a chunk oriented tasklet: reader, processor and writer. The job is not run in the main thread.
Occasionally the ...
- 4,656
1
vote
1
answer
554
views
Why is generic instantiation syntax disallowed in Hack?
From the docs:
Note: HHVM allows syntax such as $x = Vector<int>{5,10};, but Hack
disallows the syntax in this situation, instead opting to infer
it.
Is there a specific reason for this?...
- 12k
2
votes
2
answers
2k
views
How to make Storm halt on exception?
By default, when a Storm spout or bolt encounters an exception, it restarts the spout or bolt and tries again. Is there any configuration option to make it stop the topology, perhaps after N repeated ...
- 5,944
1
vote
2
answers
630
views
Design by Contract and Fail Fast
Fail Fast -
Fail-fast is a property of a system or module with respect to its
response to failures. A fail-fast system is designed to immediately
report at its interface any failure or ...
- 11
5
votes
5
answers
4k
views
fail-fast iterator
I get this definition : As name suggest fail-fast Iterators fail as soon as they realized that structure of Collection has been changed since iteration has begun.
what it mean by since iteration has ...
- 741
2
votes
2
answers
753
views
Cannot understand this comment about fail-fast
In HashSet.java in JDK 1.6, there are some comments about the fail-fast property of HashSet's iterator.
The iterators returned by this class's iterator method are fail-fast: if the set is modified ...
- 4,573
-1
votes
4
answers
1k
views
Why is there no error when using iterator.remove?
If I use Iterator.remove(), everything is fine. If I use ArryaList.remove(), I always receive the error java.util.ConcurrentModificationException.
Can anyone point out the reason?
- 25.7k
1
vote
0
answers
243
views
Detect if Serializable object is really serializable?
Is there a built-in method - or can someone point me to a good pattern - for determining whether an object that implements Serializable is actually serializable at construction time? I need something ...
- 8,782