A mature Android application can contain hundreds of thousands of lines of Java, serve paying customers, and pass through years of production releases. Then a new architectural proposal arrives: “We should rewrite it in Kotlin.” Sometimes that proposal addresses a real problem. Sometimes it…
Introduction Since the introduction of Java 8, developers have faced a recurring architectural dilemma: should collections be processed using traditional imperative loops ( for , while ) or declarative Stream pipelines? While Streams offer superior readability and functional composition, they…
IntelliJ Java Version Mismatch: Project SDK, Gradle JVM, and JAVA_HOME Explained I recently set up a new development laptop from scratch. JDK 17 was installed. The terminal looked fine. java -version It returned the version I expected. That should mean my Java environment is ready, right? Not…
Stop Context Starvation: Implementing Parent Document Retrieval in Spring AI Uniform 512-token chunking in production RAG pipelines is dead; it either dilutes vector search precision or starves your LLM of surrounding context. By adopting parent-child retrieval in Spring AI with pgvector, you…
WebAssembly allows applications written in languages other than JavaScript to execute directly in the browser. With WebForms Core 2.2, Java can also be used as a WebAssembly Commander and generate WebForms commands that are executed by WebFormsJS. For Java, WebForms Core currently supports TeaVM as…
System.in, BufferedReader, and Scanner Every Java beginner eventually asks the same question: "Okay, I can print output — how do I actually read something the user types?" Java gives you a few ways to do this, each with trade-offs. Let's go through them in the order most people discover them. A…
Been getting into Java recently. The syntax isn't even the interesting part for me. I'm more interested in what I can actually build with it once I get comfortable. Still working through the fundamentals before I touch Spring Boot. We move.
Immediately following the OpenJDK 8 through OpenJDK 27 benchmarks I expanded the scope of testing to look at how recent OpenJDK releases have been comparing to alternative JVMs like GraalVM, Temurin, and Semeru. Here are those benchmarks if curious about the Java performance in those different…
