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How to Install Gradle

Gradle is a dependency management / build tool that combines the best of Maven and Ant, making it an extremely powerful and customizable tool. It also uses a sleek Groovy DSL instead ...
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Java API for JSON Processing (JSR-353) – Stream APIs

Java will soon have a standard set of APIs for processing JSON as part of Java EE 7. This standard is being defined as JSR 353 – Java API for JSON Processing (JSON-P) and it is ...
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JUnit: Naming Individual Test Cases in a Parameterized Test

A couple of years ago I wrote about JUnit Parameterized Tests. One of the things I didn’t like about them was that JUnit named the invidividual test cases using numbers, so if ...
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Score DRL: faster and easier in OptaPlanner

For OptaPlanner (= Drools Planner) 6.0.0.Beta1, I ‘ve replaced the ConstraintOccurrence with the much more elegant ConstraintMatch system. The result is that your score DRL files ...
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Java EE CDI bean scopes

Contexts and Dependency Injection (CDI) for the Java EE platform is a feature that helps to bind together the web tier and the transactional tier of the Java EE platform. CDI is a set ...
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Spring MVC Session Tutorial

Session management is one of essential parts for each web application. Since Spring MVC is a powerfull framework for a web development, it has own tools and API for the interaction ...
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JPA – Hibernate – Type mapping on package level

When we are finally mature enough to use some custom types mapping in JPA, we usually stuck with some provider specific solution, because JPA itself doesn’t define any mechanism ...
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ActiveMQ Message Priorities: How it works

There’s usually a steady drip of questions on the mailing list surrounding ActiveMQ’s message-priority support as well as good questions about observed behaviors and “what’s ...
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Multipart Upload on S3 with jclouds

1. Goal In the previous article, we looked at how we can use the generic Blob APIs from jclouds to upload content to S3. In this article we will use the S3 specific asynchronous API ...
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Upload on Amazon S3 with the jclouds library

There are several good ways to upload content to an S3 bucket in the Java world – in this article we’ll look at what the jclouds library provides for this purpose. To use jclouds ...
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