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Crashing your JVM

Thorough testing can be harmful as we discovered recently. Extending our test coverage led us to a several-hours debugging session caused by just one line of code. What made the debugging ...
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Building and testing a websocket server with undertow

The upcoming version of JBoss Application Server will no longer use Tomcat as integrated webserver, but will replace it with undertow. The architecture of undertow is based on handlers ...
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Auditing Entities in Spring Data MongoDB

Spring Data MongoDB 1.2.0 silently introduced new feature: support for basic auditing. Because you will not find too much about it in official reference in this post I will show what ...
java-interview-questions-answers

Two things to remember when using Java RMI

This is a short blog post about two common pitfalls you should be aware of when using Java RMI. Setting java.rmi.server.hostname If you are getting strange Connection refused to host: ...
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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 ...
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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 ...
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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 ...
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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. ...
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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 ...
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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 ...
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