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javacodegeeks.com /1 day ago

Three Metaprogramming Models in Java: Annotation Processors vs Bytecode Agents vs Reflection

Java code can write, rewrite, or inspect other Java code. The real question is when it happens, and who pays for it. Three Moments, Three Trade-Offs Java developers meet metaprogra...

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javacodegeeks.com /1 month ago

Java Compact Source Files: No Class, No Static Main

Java has traditionally required a class and a static main method even for the smallest programs. Java 25 changes this with compact source files and instance main methods, providing...

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javacodegeeks.com /1 month ago

Java’s Sealed Classes Meet the Visitor Pattern

Replacing a classic GoF pattern with pattern matching: a before and after refactor of a Visitor hierarchy, collapsed into a sealed interface and an exhaustive switch expression. Th...

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javacodegeeks.com /1 month ago

Project Valhalla in Practice: Writing Your First Value Class

JEP 401 is real, it’s in an early-access build today, and you can run it right now. It just isn’t landing where most people think it is. A decade of conference talks, name changes,...

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javacodegeeks.com /1 month ago

Multiple Dispatch: Julia’s Different Answer to the Expression Problem

Sealed interfaces close the type list. Julia opens it, and the operation list, at once. A recent piece on this site walked through how sealed interfaces and exhaustive switch expre...

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simplilearn.com /5 days ago

The Ultimate Java Cheat Sheet | Simplilearn

Are you a Java developer looking to save time and increase your productivity? Look no further than the Ultimate Java Cheat Sheet! This comprehensive guide provides you with everyth...

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dzone.com /1 month ago

How to Correctly Implement ‘Sneaky Throws’ in Java

If you ask Java developers about the concept of ‘Sneaky Throws,’ I am almost sure there will be a couple of opinions that are quite differently expressed, but similar in their mean...

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javacodegeeks.com /1 month ago

The Bytecode Verifier’s Hidden Contract

Every class file passes a formal dataflow analysis before the JIT ever sees it, and that quiet checkpoint is what actually makes the JVM’s sandbox model possible. Ask most Java dev...

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javacodegeeks.com /5 days ago

Flexible Constructor Bodies: Validating Before super()

Here’s a small confession. For years I wrote constructors that did their validation in the wrong place, and I knew it. The check belonged at the very top, before any parent class g...

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dzone.com /1 month ago

Why I Don't Want an LLM Generating Java Business Logic

A pull request arrives. A few hundred lines of Java implementing the new discount rule: tiered thresholds, a regional exception, something about loyalty tiers that nobody can quite...

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javacodegeeks.com /3 weeks ago

Running Java Applications on WebAssembly: Exploring WasmEdge and GraalVM Integration

Java has powered enterprise software, cloud-native microservices, and high-performance backend systems for nearly three decades. Yet, as serverless computing, edge environments, an...

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feeds.feedblitz.com /6 days ago

Java Weekly, Issue 668

JDK 28 is shaping up nicely. And an interesting harness experiment. The post Java Weekly, Issue 668 first appeared on Baeldung.

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blog.frankel.ch /2 weeks ago

Security Baked Into the JVM: no single party controls the outcome

A URL is a name, and names get reused. Replace the bytes behind https://repo.example.org/order-processor.jar and every permission granted to that URL still applies, now to code nob...

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dzone.com /1 week ago

Going All In On the JVM 25 Virtual Threads

The project AngularAndSpring has been refactored from Spring Reactor to Spring blocking APIs using JDK 25 and virtual threads. The Old Architecture The reason AngularAndSpring was...

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feeds.feedblitz.com /3 weeks ago

New Features in Java 27

Learn what's new in Java 27: which JEPS are final and which are still in preview. The post New Features in Java 27 first appeared on Baeldung.

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javacodegeeks.com /1 month ago

Java as MCP Infrastructure: What Happens When Every Enterprise JVM Becomes an Agent Host

Spring AI, LangChain4j, Quarkus, and Helidon all now speak the Model Context Protocol. That is a bigger shift than another integration library, because for the first time it points...

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simplilearn.com /4 days ago

Java 8 Interview Questions and Answers | Simplilearn

Java is an open-source programming language now managed by Oracle Corporation. Introduced in 2014, Java 8, also known as JDK 8, has been a major release of the Java programming lan...

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infoq.com /1 month ago

Java 27 Delivers Post-Quantum Cryptography, Future Language Innovation, Helidon 27, JavaFX 27

Oracle has released version 27 of the Java programming language and virtual machine. As the second non-LTS release since JDK 25, the final feature set includes nine JEPs, five of w...

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infoq.com /1 month ago

Java News Roundup: JDK 27, Open J Proxy, A2A Jakarta, Azul Payara, BoxLang, Netflix ja

This week's Java roundup for September 14th, 2026, features news highlighting: the GA release of JDK 27, LibericaJDK 27, Open J Proxy 1.0 and A2A Jakarta 1.0; point releases of Azu...

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infoq.com /3 days ago

TornadoVM 7 Enables GPU-Native Workloads From Java Applications

TornadoVM, an open-source heterogeneous programming framework for Java has reached version 7.0. It automatically accelerates Java programs on multi-core CPUs and GPUs and provides...

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simplilearn.com /2 weeks ago

Essential Java Trends: What Developers Need to Know | Simplilearn

For more than 20 years, Java has been used in computer programming and is still a favorite among coders and programmers. In the continuously evolving world of complex software prog...

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habr.com /1 month ago

Работа со сторонними библиотеками в Java Card

В статье «Асимметричная криптография в Java Card» был приведен пример по установке защищенного канала в два этапа:1. генерация общего секрета по алгоритму ECDH;2. использование общ...

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infoq.com /1 month ago

Java News Roundup: TornadoVM 6, JReleaser, LangChain4j, Java Operator SDK, JHipster, Yupiik Fusion

This week's Java roundup for August 31st, 2026, features news highlighting: the GA release of TornadoVM 6.0; point releases of JReleaser, LangChain4j, Java Operator SDK, JHipster,...

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infoq.com /2 weeks ago

Java News Roundup: JobRunr 9, OpenXava 8, Quarkus, LangChain4j, JNoSQL, Introducing Lathe

This week's Java roundup for September 28th, 2026, features news highlighting: the GA releases of JobRunr 9.0 and OpenXava 8.0; point releases for Quarkus, Micronaut, LangChain4j,...

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