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Getting started with Apache Camel using Java

Apache Camel is a very useful library that helps you process events or messages from many different sources. You may move these messages through many different protocols such as between ...
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Servlet Exception and Error Handling Example Tutorial

Sometime back I wrote a post about Exception Handling in Java but when it comes to web application, we need more than normal exception handling in java. Servlet Exception If you notice, ...
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How To Implement Input Validation For REST resources

How To Implement Input Validation For REST resources The SaaS platform I’m working on has a RESTful interface that accepts XML payloads. Implementing REST Resources For a Java shop ...
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How to configure SLF4J with different logger implementations

There are many good benefits in using slf4j library as your Java application logging API layer. Here I will show few examples on how to use and configure it with different loggers. You ...
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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 ...
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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 ...
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