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An answer to CircleCI’s Why we’re no longer using Core.typed


CircleCI has recently published a very useful post “Why we’re no longer using Core.typed” that raises some important concerns w.r.t. Typed Clojure that in their particular case led to the cost overweighting the benefits. CircleCI has a long and positive relation to Ambrose Bonnaire-Sergeant, the main author of core.typed, that has addressed their concerns in his recent Strange Loop talk “Typed ...

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Simpler handling of asynchronous transaction bound events in Spring 4.2


Introduction As you probably already know (e.g. from my previous blog post) it is no longer needed to create a separate class implementing ApplicationListener with onApplicationEvent method to be able to react to application events (both from Spring Framework itself and our own domain events). Starting with Spring 4.2 the support for annotation-driven event listeners was added. It is enough ...

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JLupin Next Server at first glance


The JEE infrastructure has now a new administration solution – JLupin Next Server. It offers a different approach to application implementation. What does it offer? Existing solutions used for implementation of the JEE application are limited. With the new way of application management, JLupin Next Server breaks down all barriers. JEE’s blazed trails Good practices show that the safety of ...

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Java EE 8 MVC: A detailed look at Controllers


Java EE MVC is a new action based MVC framework planned for Java EE 8 and specified in JSR-371. This is the second post of my Java EE 8 MVC tutorial. The first post covered the basics and shows how to get started with Ozark, the Java EE 8 MVC reference implementation. In this post we will have a more ...

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Creating sample HTTPS server for fun and profit


Often during development or/and testing against real-life scenarios we, developers, are facing a need to run a full-fledged HTTPS server, possibly doing some mocking at the same time. On JVM platform, it used to be not trivial at all unless you know the right tool for the job. In this post we are going to create a skeleton of fully ...

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5 Weird Java Questions That Will Make Your Head Spin


Some of the weirdest Java puzzlers that we had a chance to get our hands on Even the most experienced Java developers will find the questions in this post confusing. Or at the very least, amusing (And absolutely unfair). After our adventure with the Java Deathmatch we’ve decided to publish a different set of questions this time around, highlighting some ...

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Critical HL7 Usecases With Camel, ActiveMQ, Elasticsearch


HL7 over MLLP is a very common transport mechanisms for systems that can speak the HL7 protocol format. JBoss Fuse is a very powerful microservices-style integration platform and has a proven track record for building flexible, resilient, highly available integration scenarios for critical health-care providers. Additionally, replacing legacy vendors like SeaBeyond on JCAPS is the sweet spot for these types ...

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Listen to notifications from Postgresql with Scala


In the past I’ve written a couple of articles (Building a REST service in Scala with Akka HTTP, Akka Streams and reactive mongo and ReactiveMongo with Akka, Scala and websockets) which used MongoDB to push updates directly from the database to a Scala application. This is a very nice feature if you just want to subscribe your application to a ...

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