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Oracle GlassFish, or Why You Should Think About Open Source Again

Oracle’s recent announcement about the discontinuation of commercial services for JEE’s reference implementation GlassFish has caused many reactions in the community involved with ...
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Ceylon 1.0.0 is now available

Today, we’re proud to announce the first production release of the Ceylon language specification, compiler, and IDE. Ceylon 1.0 is a modern, modular, statically typed programming ...
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Why we shouldn’t use more threads than we need to

Overview There is a common argument that because we have lots of cores, and will have even more in the future we have to use them.  We just we need to find the best ways to use them ...
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Lambdas for Fluent and Stable APIs

A few weeks ago I wrote an introduction on Java 8 lambdas. In this introduction I explained what a lambda is and how to use them in conjunction with the new Stream API, that is also ...
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ID Lists Aren’t the Best Solution for the N+1 Problem

In their eternal attempts to circumvent the N+1 problem, Hibernate users often resort to IN predicates with ID lists. In this post, we’ll see how those users might just be replacing ...
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Customization in Saas using Plug and Play Architecture

There exists a lot of design patterns, architectures and design concepts that can be applied to technical aspects of implementing a product. For eg., we have MVC architecture that isolates ...
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Throttling Task Submission with a BlockingExecutor

The JDK’s java.util.concurrent.ThreadPoolExecutor allows you to submit tasks to a thread pool and uses a BlockingQueue to hold submitted tasks. If you have thousands of tasks ...
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Simple CRUD using Servlet 3.0, Redis/Jedis and CDI – Part 2

In this post we will focus on CDI and Servlet 3.0. You can see part 1 here. Let’s start with CDI. When I started writing the post that originated this serie, I was not thinking in ...
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Cloud based deployment pipeline

Cloud based development tools are continuing to improve thanks to the power of new browser technologies and cloud services such as github and Amazon Web Services. The full deployment ...
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Multi-tier application + database deadlock or why databases aren’t queues (part1)

Databases aren’t queues. And despite the ubiquitous presence of queuing technology out there (ActiveMQ, MSMQ, MSSQL Service Broker, Oracle Advanced Queuing) there are plenty of ...
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