Import Changes, API Adjustments & Compatibility ResultsA complete, real-world migration summary from Spring Boot 3.5 → 4.0, including breaking changes, dependency updates, and fixes across Web, JPA, Jackson 3, GCP, Pub/Sub, Thymeleaf, and Testing.&…
Large Language Models (LLMs) are powerful, but they come with an important limitation: they only know what was included during training. They cannot natively reason over private documents, internal knowledge bases, or freshly updated content.This is wh…
Large Language Models (LLMs) are powerful, but they have a fundamental limitation: they lack real-time awareness. Their responses are constrained by training data cutoffs, which makes them unsuitable for use cases that require up-to-date information.To…
Modern applications rely on multiple external systems — relational databases, messaging services, cloud APIs, and more. Unit tests alone can’t reliably validate these integrations.
Testcontainers has become the de-facto solution for running light…
In many enterprise systems, you may need to work with multiple databases — for example, customer data in PostgreSQL, legacy records in Oracle, and transactional data in MySQL. Managing these connections efficiently while keeping the code clean can be c…