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Use reCaptcha in a Spring MVC web application

A CAPTCHA is a program that can generate and grade tests that humans can pass but computer programs ‘cannot‘. One of strategies followed are showing an image to user with ...
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Tomcat Clustering Series Part 2 : Session Affinity Load Balancer

This is the second part of the Tomcat Clustering Series. In the first part we discussed how to setup a simple load balancer. And we saw how the load balancer distributes the requests ...
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Polling an http end point using Spring Integration

It is a little non-intuitive if you want to write a flow with Spring Integration which polls an http end point and gathers some content from the http end point for further processing. Spring ...
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Chain of responsibility using Spring @Autowired List

There is a way in Spring 3.1 to auto populate a typed List which is very handy when you want to push a bit the decoupling and the cleaning in your code. To show you how it works, I ...
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IBM AIX: Java process size monitoring

This article will provide you with a quick reference guide on how to calculate the Java process size memory footprint for Java VM processes running on IBM AIX 5.3+ OS. This is a complementary ...
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Java Annotations Tutorial with Custom Annotation

Java Annotations provide information about the code and they have no direct effect on the code they annotate. In this tutorial, we will learn about Java annotations, how to write custom ...
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Google Guava Concurrency – ListenableFuture

In my last post I covered using the Monitor class from the com.google.common.util.concurrent package in the Guava Library. In this post I am going to continue my coverage of Guava concurrency ...
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Permissions in OSGi

In a previous post, we looked at implementing a sandbox for Java applications in which we can securely run mobile code. This post looks at how to do the same in an OSGi environment.OSGi The ...
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Using Jasper Reports to create reports in Java

Last week I was trying to create a report using Jasper. In this post I will document some of the resources and links so that it will be useful for any one looking for similar information. I ...
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Parallelization of a simple use case explained

Some time ago a friend of mine asked me about the possibilities of speeding up the following process: they are generating some data in two stages, reading from a database and processing ...
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