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Custom error pages for expired conversations involving CDI and JSF

It’s been a while since I last blogged. I keep thinking of blogging something technical but end up getting busy with other things. This last week there was a very interesting ...
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SpiderMonkey to V8 for MongoDB and mongometer

With 10gen switching the default JavaScript engine for MongoDB 2.3/2.4 from SpiderMonkey to V8 I thought I’d take the opportunity to compare the relative performances of the releases ...
spring-interview-questions-answers

Spring MVC 3: Upload multiple files

It was just another long day at office with the database not available and one of the team members lagging by a week now. So, we had to work as a team to get it delivered. In Spring ...
spring-interview-questions-answers

Spring Data JDBC generic DAO implementation – most lightweight ORM ever

I am thrilled to announce first version of my Spring Data JDBC repository project. The purpose of this open source library is to provide generic, lightweight and easy to use DAO implementation ...
java-interview-questions-answers

Effective Logging in Java/JEE – Mapped Diagnostic Context

It all started when i was sitting with a colleague to resolve some application issue, when i noticed something interesting. He was merging the code and my eyes caught the attention ...
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Apache Camel Cheatsheet

                      Polling an empty directory (and send an empty message with null body) : from('file://temp?sendEmptyMessageWhenIdle=true') Stop ...
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Going REST: embedding Jetty with Spring and JAX-RS (Apache CXF)

For hardcore server-side Java developer the only way to ‘speak’ out to the world is by using APIs. Today’s post is all about JAX-RS: writing and exposing RESTful services ...
java-interview-questions-answers

Mixin in Java with Aspects – for a Scala traits sample

Scala traits allow new behaviors to be mixed into a class. Consider two traits to add auditing and version related fields to JPA entities:                   package ...
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MySql connections autodrop after a certain hours

MySql is configured to drop any connection which has been Idle for more than 8 hours. What is the implication of this? After you return to your deployed app after a gap of 8 hours (If ...
spring-interview-questions-answers

Brace yourselves – Spring Framework 4.0 is coming!

A few days ago SpringSource announced that the 4.0 version of the popular Spring framework is on the road. The next iteration will be Spring Framework 4.0! As SpringSource states, the ...
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