Hüseyin Akdoğan

Since 2005, Huseyin Akdogan has been developing enterprise applications with Java, holding training, writing articles, and consultancy services about Java runtimes such as Spring, Quarkus, and some big data technologies.

Also, he is one of the leaders of JUG Istanbul and has been an organizer or a speaker at many meetings. Along with these, he is the author of Elasticsearch Indexing book.

Modernizing Java with Jakarta EE 11

Learn how to get your Java applications to cloud-native, AI-ready infrastructure without a costly rewrite or vendor lock-in.

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Towards an understanding of sustainable software development, written by and for the friends of OpenJDK

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HTTP QUERY Method Explained: RFC 10008, Ecosystem Adoption, and a Quarkus Implementation

Table of Contents The QUERY MethodSafe and idempotentMeaning comes from Content-TypeExplicitly cacheableDiscovery via Accept-QueryThe equivalent resourceFamiliar error semanticsA decade in the makingWhere ecosystem support stands todayApache TomcatEclipse JettyJakarta ServletWhat about Spring?Why Quarkus can do it todayThe example: a product catalog ...

Jul 31 410

Hüseyin Akdoğan

Jakarta EE

Java

DPoP: What It Is, How It Works, and Why Bearer Tokens Aren’t Enough

Table of Contents What is DPoP?The Problem: Bearer Tokens and the “Finders Keepers” RiskHow Does DPoP Work?Configuring DPoP in KeycloakDPoP in Action with QuarkusProject SetupProtected EndpointsReplay Protection with a jti FilterTesting with k6ConclusionDPoP is one of the most exciting developments …

Mar 09 4,7K

Hüseyin Akdoğan

Security

Introduction to intermediate operations modeler: Stream Gatherers

Table of Contents What are Gatherers?Creating a GathererBuilt-in GaterersCreate your own GathererConclusionReferencesJava is a programming language with many language features, specifications, and APIs. Even among experienced Java developers, being aware of all of these is quite rare. If a study …

Mar 19 6,2K

Hüseyin Akdoğan

Java

The Basis of Virtual Threads: Continuations

Virtual threads are lightweight implementations of java.lang.Thread, while this article turns the spotlight on the Continuations that are the basis of Virtual threads.

Apr 28 22,5K

Hüseyin Akdoğan

Java Core

Performance