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Ondro Mihályi

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Migrating From Java EE - to SpringBoot Or Something Else?JCON EUROPE 20252025-05-12
Survey shows ~50% of installs still on WebLogic/WebSphere and many projects stuck on Java EE7/8; migrations routinely take far longer than planned (six‑month…
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Migrating from Java EE: to Spring Boot or Something ElseDevnexus 20252025-03-04
Migrating monolith Java EE apps to Spring Boot often takes far longer than planned—one client moves ~30% after six years—so consider alternatives: upgrade to a…
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Demystifying Java Virtual ThreadsGeeCON 20242024-05-15
Explains how Java 21 virtual threads run as heap objects scheduled onto a small set of OS carrier threads, shows a GlassFish/Grizzly executor was implemented…
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How to Easily Upgrade to Jakarta EE 10 Javax to Jakarta Prefix without a HassleJCON WORLD ONLINE 20232023-11-20
Step-by-step plan: run Eclipse Transformer first to convert javax→jakarta across source, resources and binary jars (it post-processes WAR/JARs and handles XML…
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Piranha Cloud - from Eclipse GlassFish to super fast Cloud and Serverless JavaJCON WORLD ONLINE 20232023-11-20
Piranha Cloud is a new Jakarta EE runtime built from GlassFish components with a tiny, custom servlet engine that boots microservices in hundreds of…
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Serverless Java hacks: Think different and leave old habits...GeeCON Prague 20232023-10-19
Explains concrete serverless Java practices: prefer static global cache for short lived reuse, avoid heavy frameworks that create pools and instead avoid…
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Afraid of Java Cold Starts in Serverless? Fear Not, Java is Super Fast!JCON Europe 20232023-06-20
Plain Java starts in milliseconds on a laptop (measured ~67 ms local), full Java EE servers take seconds (GlassFish >5s), Quarkus with build‑time optimizations…
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Afraid of Java cold starts in Serverless? Fear not, Java is super fast!EclipseCon 20222022-10-24
Plain Java starts in the tens of milliseconds — a simple program boots in around 50 ms — while full app servers like GlassFish take about 4.3 seconds and…
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Piranha Cloud - from Eclipse GlassFish to super fast Cloud and Serverless JavaEclipseCon 20222022-10-24
Piranha Cloud is a lightweight Jakarta EE runtime built from GlassFish components (Jersey, EclipseLink) with a new minimal servlet container, a modular HTTP…
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Afraid of Java cold starts in Serverless? Fear not, Java is fastGeeCON Prague 20222022-05-11
Claims that Java is inherently slow for AWS Lambda get tested with measurements and demos: a bare minimal Java lambda starts in ~70 ms, a small servlet on…
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Securing Microservices with Auth0 and MicroProfile in Kubernetes without a hassleDevOpsCon Munich 20192019-12-02
Combining Auth0 with MicroProfile on Kubernetes claims to let Java teams stop reinventing auth and it proves the point: a live demo builds three microservices…
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5 ways to improve your Java EE applications in reactive wayOredev 20172017-11-08
Claims five incremental, non‑rewriting ways to make Java EE apps more responsive under load, applied to a production‑like cargo tracker and measured for…
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