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Struts2 Interview Questions and Answers

Struts2 is one of the famous framework for developing web application in java. Recently I have wrote a lot of Struts2 Tutorials and in this post, I am listing down some of the important Struts2 interview questions with answers to ...
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Preventing System.exit calls

When developing containers that run code written by other developers it is prudent to safe-guard against System.exit calls. If a developer inadvertently calls System.exit and deploys their code to be run by your container, it brin ...
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Why I never blame open source projects

Every now and then I get to read someone’s bad thought towards a given open-source framework. When I started programming Struts web framework was at its prime, everybody loved it. But then, little by little people started blamin ...
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Spring Security – Behind the scenes

Security tasks such as authentication of user and authorization of a user to view application resources are usually handled by the application server. These tasks can be delegated to Spring security flow relieving application serv ...
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Using MySQL autoincrement PK column in ADF Entity PK attribute

Hello all. Continuing with the ADF + MySQL workaround series, today we are going to see what we need to do in order to use MySQL PK autoincrement columns with our ADF Entities PK attributes. If we were using Oracle database, we w ...
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Getting started with Spring Data Solr

Spring Data Solr is an extension to the Spring Data project which aims to simplify the usage of Apache Solr in Spring applications. Please note that this is not an introduction into Spring (Data) or Solr. I assume you have at leas ...
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Hiring Indicators, OSS, and the Value of GitHub

As someone who writes about tech hiring and who has also encouraged many to participate in open source and establish a GitHub presence, a recent article caught my eye. Why GitHub is Not Your CV ¹ by James Coglan was pa ...
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Cargo Cult: Devops

We’ve been at this for a few years now, talking about DevOps & what it means to be a DevOps friendly (or insert your term here) organization. For much of this time I’ve held the belief that an organization could change &am ...
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HOW TO: Stereotyping a java Class

In this HowTo post I will show how we can stereotype a class with another class. Why is this useful?When there are a lot of BCI’ing happening in your project, it is not prudent to let every developer write the BCI code.For o ...
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HOW-TO: Custom error pages in Tomcat with Spring MVC

Default Tomcat error pages look scary. In addition, they may expose valuable information including server version and exception stack trace. Servlet specification provides a way to configure an exceptional behavior through web.xml ...
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