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Apache Camel 2.12 – Backoff support for less aggressive polling routes

This is another blog post about some upcoming improvements and new features in the next Apache Camel 2.12 release. In the last blog I spoke about cron expressions directly supported ...
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Long Polling Tomcat with Spring

“Ooh err Missus” as comedian Frankie Howerd would have said, but enough of British innuendo and double entendre because Long Polling Tomcat isn’t some kind of sexual ...
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Writing a Hadoop MapReduce task in Java

Although Hadoop Framework itself is created with Java the MapReduce jobs can be written in many different languages. In this post I show how to create a MapReduce job in Java based ...
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Creating Code Coverage Reports for Unit And Integration Tests with The JaCoCo Maven Plugin

When I started using Java 7, I noticed right away that the Cobertura Maven plugin doesn’t support it. This was a huge problem to me because I used code coverage reports every day. ...
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From inside the code: Camel Routing Engine Part I

So I’ve recently re-kindled my interest in how Apache Camel works. Camel is such a powerful integration tool and is very widely used, but anytime I put it to work, I can’t help ...
java-interview-questions-answers

50 Servlet Interview Questions and Answers

Servlets are very important topic of Java EE and all of the web applications framework such as Spring and Struts are built on top of it. This makes servlet a hot topic in Java interviews. Here ...
java-interview-questions-answers

Async Servlet Feature of Servlet 3

Before we jump into understanding what Async Servlet is, let’s try to understand why do we need it. Let’s say we have a Servlet that takes a lot of time to process, something like ...
java-interview-questions-answers

Servlet Upload File and Download File Example

File Upload and Download and common tasks in a java web application. Since I have written a lot about java servlet recently, I thought to provide a sample example of file upload and ...
spring-interview-questions-answers

Spring MVC: Resources

One of the most frequent questions which I receive from my blog readers is how to use css and javascript files in application with Spring MVC. So it’s a good opportunity to write ...
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DI / CDI – Basics

Introduction (DI/CDI Basics) First of all, I would assume there is a bit of confusion to this, but the truth of the matter is, they are just the same – the difference is that usage ...
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