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1. JPA Mini Book

2. JVM Troubleshooting Guide

3. JUnit Tutorial for Unit Testing

4. Java Annotations Tutorial

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A Simple Introduction to AOP

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Why use AOP, a simple way to answer this question is to show an implementation of a cross cutting concern without using AOP. Consider a simple service and it’s implementation:                 public interface InventoryService { public Inventory create(Inventory inventory); public List<inventory> list(); public Inventory findByVin(String vin); public Inventory update(Inventory inventory); public boolean delete(Long ...

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NoSQLUnit 0.3.0 Released

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Introduction Unit testing is a method by which the smallest testable part of an application is validated. Unit tests must follow the FIRST Rules; these are Fast, Isolated, Repeatable, Self-Validated and Timely. It is strange to think about a JEE application without persistence layer (typical Relational databases or new NoSQL databases) so should be interesting to write unit tests of ...

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Getting Started with Spring Social

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Like me, you will not have failed to notice the current rush to ‘socialize’ applications, whether it’s adding a simple Facebook ‘Like’ button, a whole bunch of ‘share’ buttons or displaying timeline information. Everybody’s doing it including the Guys at Spring, and true to form they’ve come up with a rinky-dinky API called Spring Social that allows you to integrate ...

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Spring Framework 3.2 M1 Released

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SpringSource just announced the first milestone release toward Spring 3.2. The new release is now available from the SpringSource repository at http://repo.springsource.org/. Check out a quick tutorial on resolving these artifacts via Maven. This release includes: Initial support for asynchronous @Controller methods Early support for JCache-based cache providers Significant performance improvements in autowiring of non-singleton beans Initial delay support for ...

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Rise above the Cloud hype with OpenShift

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Are you tired of requesting a new development machine for your application? Are you sick of having to setup a new test environment for your application? Do you just want to focus on developing your application in peace without ‘dorking with the stack’ all of the time? We hear you. We have been there too. Have no fear, OpenShift is ...

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How I explained Dependency Injection to My Team

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Recently our company started developing a new java based web application and after some evaluation process we decided to use Spring. But many of the team members are not aware of Spring and Dependency Injection principles. So I was asked to give a crash course on what is Dependency Injection and basics on Spring. Instead of telling all the theory ...

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Proof of Concept: Play! Framework

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We are starting a new project and we have to choose the web framework. Our default choice is grails, because the team already has experience with it, but I decided to give Play! and Scala a chance. Play! has a lot of cool things for which it received many pluses in my evaluation, but in the end we decided to ...

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Software Architects Need Not Apply

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I saw an online job posting several years ago that listed a set of desired software development and programming skills and concluded with the statement, “Architects Need Not Apply.” Joe Winchester has written that Those Who Can, Code; Those Who Can’t, Architect (beware an extremely obnoxious Flash-based popup) and has stated that part of his proposed Hippocratic Oath for Programmers ...

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Java Thread deadlock – Case Study

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This article will describe the complete root cause analysis of a recent Java deadlock problem observed from a Weblogic 11g production system running on the IBM JVM 1.6. This case study will also demonstrate the importance of mastering Thread Dump analysis skills; including for the IBM JVM Thread Dump format. Environment specifications – Java EE server: Oracle Weblogic Server 11g ...

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JavaFX 2: Create Login Form

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In this tutorial I will design a nice looking Login Form with JavaFX 2 and CSS. It’s clasic login form with username and password, and login button. In order to follow this tutorial I strongly recommend you to check these tutorials below: Getting started with JavaFX 2 in Eclipse IDE JavaFX 2: HBox JavaFX 2: GridPane JavaFX 2: Styling Buttons ...

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