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A beginner’s guide to database locking and the lost update phenomena

Introduction A database is highly concurrent system. There’s always a chance of update conflicts, like when two concurring transactions try to update the same record. If there would ...
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Can Static Analysis replace Code Reviews?

In my last post, I explained how to do code reviews properly. I recommended taking advantage of static analysis tools like Findbugs, PMD, Klocwork or Fortify to check for common mistakes ...
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Intel RealSense: What you have to know about the human-computer interaction technology!

You may know it as ‘Perceptual Computing’ but you now have to call it RealSense! The name is not the only thing that changes in Intel’s human-computer interaction technology. ...
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Schedule Java EE 7 Batch Jobs

Java EE 7 added the capability to perform Batch jobs in a standard way using JSR 352.                   <job id="myJob" xmlns="http://xmlns.jcp.org/xml/ns/javaee" ...
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Legendary Product Development

“Brand will not save you, marketing will not save you, and account control will not save you. It’s the products.” – Marc Andreessen I believe there is a recipe for winning ...
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Defend your Application with Hystrix

In previous post http://www.javacodegeeks.com/2014/07/rxjava-java8-java-ee-7-arquillian-bliss.html we talked about microservices and how to orchestrate them using Reactive Extensions ...
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Developing a top-down Web Service project

This is a sample chapter taken from the Advanced JAX-WS Web Services book edited by Alessio Soldano. The bottom-up approach for creating a Web Service endpoint has been introduced in ...
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Some more unit test tips

In my previous post I showed some tips on unit testing JavaBeans. In this blog entry I will give two more tips on unit testing some fairly common Java code, namely utility classes and ...
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Custom JSR 303 Bean Validation constraints for the JSR 310 New Date/Time API

With JSR 310 Java 8 finally brought us a decent date and time API. For those of you that are still using Java 7 – like I am at my current project – there is an excellent backport ...
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2 Ways of Passing Properties / Parameters in Java EE 7 Batch

When it comes to the Java EE 7 Batch Processing facility, there are 2 ways in passing properties / parameters to the chunks and batchlets. This quick guide shows you the 2 ways, which ...
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