All Questions
15,595 questions
-1
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0
answers
53
views
JComboBox throws IllegalComponentStateException when selecting an item
I’m a Java beginner currently experimenting with Swing to get used to building GUIs. There’s no actual logic yet — I’m just focusing on layout and component structure.
When I click on a unit in either ...
- 29
1
vote
1
answer
91
views
Spring Boot Swagger throws "Failed to load API definition. Response status is 500 /v3/api-docs" after adding Exception Handlers
this is my first time asking a question here, so please bear with me if I miss anything.
I’ve created a simple Spring Boot banking project with the following REST APIs:
/create
/getAccount
/deposit
/...
1
vote
0
answers
64
views
How do I implement an automatic error logger that handles both uncaught and caught (caught in try catch block) exceptions?
I was wondering if it is possible to implement an automatic error logger with specific functionality that logs errors into a PostGres Table. Basically, in my application i have both handled and ...
- 11
0
votes
0
answers
47
views
Java Sping in container can't connect to external oracle database
I have a java spring boot inside docker a container which has to connect to an external Oracle database, i have set the db properties in the application.yml file.
The connection shouldn't require TLS/...
- 200
0
votes
2
answers
68
views
Valid parenthesis problem passes tests but fails when I submit
I'm currently trying to solve the Valid Parenthesis problem on Leetcode, in Java, that goes as follows:
Given a string s containing just the characters '(', ')', '{', '}', '[' and ']', determine if ...
- 1
0
votes
1
answer
49
views
ClassNotFoundExcetion is thrown by library when class is present in the application's classpath
I have a Maven project with the following dependencies:
org.apache.poi:poi-ooxml:4.1.0
org.apache.poi:poi:4.1.0
An internal dependency/library, lets call it Lib-A, which was built using Gradle. This ...
- 83
1
vote
2
answers
57
views
How to avoid memory allocation in catch block in Java Spring application (string interpolation)?
I am writing a Java Spring Boot (servlet) web-API application. There are repository classes in the application. Repository methods are written "from scratch" using Google Cloud Datastore API ...
- 3,905
-1
votes
1
answer
41
views
NoSuchElementException and premature closure of scanner
I have made a program that reads 5 integers and outputs its polarity(positive or negative), its type(odd or even). Used Scanner.nextLine() to read the input as string and split it with .split("\s+...
- 1
0
votes
1
answer
70
views
Java exception e.getMessage() is null
I have a small question regarding Java Exception.getMessage().
My code is using a client, a third party library I have no control over.
try {
thirdpartyclient.doSomthing();
return ...;
} catch ...
- 5,198
0
votes
0
answers
30
views
Exception is thrown when I try to close the Modbus slave
I am using the j2mod Modbus library 3.1.1 with Java 8. In my JavaFX application, I created a wrapper class to handle the interaction with the Modbus slave instance. The wrapper class implements the ...
- 1,214
1
vote
0
answers
220
views
Class not found exception org.springframework.data.web.config.SpringDataWebSettings
I pulled this Spring JPA dependency
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-data-jpa</artifactId>
<version>2.4.0</...
- 46
0
votes
1
answer
158
views
Issue with Quarkus exception handling extension not capturing exceptions
I’m working on several Quarkus APIs that communicate via REST within a Kubernetes cluster. I’ve implemented an exception handling mechanism that captures exceptions, formats them to match a standard, ...
- 11
0
votes
1
answer
67
views
Java Antlr4 ParseCancellationException Ignored (Solved-ish)
Solution:
This is a workaround, but if you store a boolean 'cancel' field within your listener class, and, at the top of any exit methods, check this value and throw an exception if True, this ...
- 7
0
votes
1
answer
120
views
I am Getting " java.lang.ClassNotFoundException: ava.lang.WrongThreadException" Exception in Springboot , However the App works as usual?
Code is working Correctly without any errors
LOGS default
However , if I enable
#logging.level.root=DEBUG
I can see 3 Exceptions in logs
java.lang.ClassNotFoundException: java.lang.foreign....
3
votes
3
answers
158
views
Java custom exception handling. Which class to extend?
I am taking a Java course. So I am just learning Java. The textbook says to either extend the Exception class or extend the RuntimeException class for a custom exception. I understand RuntimeException ...
- 329