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java-interview-questions-answers

JAXB – Representing Null and Empty Collections

Demo Code The following demo code will be used for all the different versions of the Java model. It simply sets one collection to null, the second to an empty list, and the third to ...
spring-interview-questions-answers

Chunk Oriented Processing in Spring Batch

Big Data Sets’ Processing is one of the most important problem in the software world. Spring Batch is a lightweight and robust batch framework to process the data sets. Spring Batch ...
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Checking out what is new with Servlet 3.0

With the JEE6 specification hitting the market, some major changes have taken place with respect to how you would approach developing applications in the enterprise application world. ...
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Getting started with Quartz Scheduler on MySQL database

Here are some simple steps to get you fully started with Quartz Scheduler on MySQL database using Groovy. The script below will allow you to quickly experiment different Quartz configuration ...
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Tips for Writing Maven Plugins

I’ve spent a lot of time recently writing or working on plugins for Maven recently. They’re simple, rewarding and fun to write. I thought I’d share a couple of tips ...
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Yammer Metrics, A new way to monitor your application

When you are running long term applications like web applications, it is good to know some statistics about them, like number of requests served, request durations, or the number active ...
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Discovering the power of Apache Camel

These last years, ESB software has been getting more and more popular. If most people usually know what is an ESB, they are fewer to clearly understand the exact role of the different ...
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MapReduce Algorithms – Order Inversion

This post is another segment in the series presenting MapReduce algorithms as found in the Data-Intensive Text Processing with MapReduce book. Previous installments are Local Aggregation, ...
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Authentication against a RESTful Service with Spring Security

1. Overview This article is focused on how to authenticate against a secure REST API that provides security services – mainly, a RESTful User Account and Authentication Service. 2. ...
java-interview-questions-answers

Google Guava BiMaps

Next up on my tour of Guava, is the BiMap, another useful collection type. It’s pretty simple really, a BiMap is simply a two way map. Inverting a Map A normal java map is a set ...
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