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Making the Reactive Queue durable with Akka Persistence

Some time ago I wrote how to implement a reactive message queue with Akka Streams. The queue supports streaming send and receive operations with back-pressure, but has one downside: ...
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Common mistakes when using Spring MVC

 When I started my career around 10 years ago, Struts MVC was the norm in the market. However, over the years, I observed the Spring MVC slowly gaining popularity. This is not a surprise ...
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How We Chose Framework

When you develop your application most of the time you are writing code that deals with some of the resources. Code lines that open database connection, allocate memory and alikes. ...
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10 things you can do as a developer to make your app secure: #8 Leverage other people’s Code (Carefully)

As you can see from the previous posts, building a secure application takes a lot of work. One short cut to secure software can be to take advantage of the security features of your ...
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Java EE Concurrency API Tutorial

This is a sample chapter taken from the Practical Java EE 7 development on WildFly book edited by Francesco Marchioni. This chapter discusses about the new Java EE Concurrency API (JSR ...
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Explicit Implicit Conversion

One of the most common pattern we use on our day to day is converting objects from one type of object to another. The reasons for that are varied; one reason is to distinguish between ...
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Top 50 Java Thread Interview Questions Answers for Freshers, Experienced Programmers

You go to any Java interview, senior or junior, experience or freshers,  you are bound to see couple of questions from thread, concurrency and multi-threading. In fact this built-in ...
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ZooKeeper, Curator and How Microservices Load Balancing Works

How Zookeeper makes sure that every worker happily gets some stuff to do from job delegating manager. Apache ZooKeeper is a tool to register, manage and discover services working on ...
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SpringBoot: Introducing SpringBoot

SpringBoot…there is a lot of buzz about SpringBoot nowadays. So what is SpringBoot? SpringBoot is a new spring portfolio project which takes opinionated view of building production-ready ...
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Evaluating persistent, replicated message queues

Message queues are useful in a number of situations; for example when we want to execute a task asynchronously, we enqueue it and some executor eventually completes it. Depending on ...
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