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Score of -2
1 answer
144 views

I have an issue where when I throw a new exception in a method for a class I am building using Java, it shows a warning saying Unhandled exception: java.lang.IllegalAccessException Below is an ...
Score of 0
3 answers
130 views

I made a code editor application with Java Swing. I'm using a JFileChooser to let the user select files to open but by default it's in light mode. I tried to override some methods: private ...
Score of -1
0 answers
112 views

We are encountering a compilation error in the generated hash() method related to additionalProperties when using the OpenAPI Maven Generator plugin with Spring Boot 4. Could you please help us ...
Score of -5
0 answers
82 views

Is this a good way to memorize different mappings for endpoints? I am searching for different ways to implement it with CRUD operations. @PostMapping public ResponseEntity<ItemDto> create( ...
Score of 5
1 answer
143 views

I’m investigating how to aggregate signed monetary adjustments using Java 8 streams. My requirements are: Positive and negative adjustments can cancel each other. Calculations use a finite ...
Score of -5
0 answers
49 views

I am confused about how the spring data JPA works under the hood. I do know that it creates a proxy class which implements our custom repository interface like OrderRepository (which in turn extends ...
Score of -1
0 answers
115 views

I'm working on a university project for a water billing office. The office has a legacy system with a MySQL database that we are not allowed to modify. As part of a new feature, we created a separate ...
Score of 0
1 answer
106 views

I'm new to modding so help me please. There might be errors. Casing texture is missing (it may be the model or block_state) and the item icon is missing too. I tried to use AI but it didn't help. So ...
Score of 0
0 answers
115 views

I'm building a RAG pipeline with Spring Boot 3.2, Spring AI 1.0.0, Ollama running Llama 3.2:3b, and pgvector as the vector store. The pipeline retrieves documents from pgvector and injects them into ...
Score of -2
0 answers
76 views

I'm building a RAG pipeline with Spring Boot 3.2, Spring AI 1.0.0, and a local Llama 3.2 model running on Ollama. When I start the application and try to use ChatClient, I get the following error: org....
Score of 0
3 answers
207 views

I've been trying to code a function that takes points A and B as inputs, and then figures out C by calculating where A would be if it was R units closer to B My first solution was to have C be equal ...
Score of -5
2 answers
189 views

The following code illustrates a behavior of the for loop in Java that may be counterintuitive to some people: void showNumbers( List<Integer> myList ) { for( int i = 0; i < myList.size(...
Score of 1
1 answer
96 views

Environment Oracle JDBC thin driver: ojdbc17 23.26.3.0.0 (from Oracle Maven repo) Java: OpenJDK 25.0.3 (Temurin, macOS aarch64) — also reproduced with a bare JVM, no app framework DB: Oracle (...
Score of 11
4 answers
1108 views

I have a toArray() method on a generic Box<E> class returning E[], and since you can’t write new E[10], I built an Object[] and cast it on the way out. Stripped down, it’s this: public class Box&...
Score of -8
1 answer
295 views

According to Java standards, if an array or ArrayList stores all its elements as Object references, shouldn't those elements be considered homogeneous because their declared reference type is the same?...

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