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Testing Custom Exceptions with JUnit’s ExpectedException and @Rule

Exception Testing Why test exception flows? Just like with all of your code, test coverage writes a contract between your code and the business functionality that the code is supposed ...
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Log4j Thread Deadlock – A Case Study

This case study describes the complete root cause analysis and resolution of an Apache Log4j thread race problem affecting a Weblogic Portal 10.0 production environment. It will also ...
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JUnit Pass Test Case on Failures

Why create a mechanism to expect a test failure? There comes a time when one would want and expect a JUnit @Test case fail. Though this is pretty rare, it happens. I had the need to ...
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MapReduce: Working Through Data-Intensive Text Processing

It has been a while since I last posted, as I’ve been busy with some of the classes offered by Coursera. There are some very interesting offerings and is worth a look. Some time ago, ...
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Useful Ant build tags

Questions: How to do following tasks in ant file?Make zip file. Run command. Copy files to remote machine. Run commands on Remote Linux machine. Open an input box and respond ...
java-interview-questions-answers

The crystal ball illusion

I have noticed that people sometimes avoid doing thorough testing. This may sound as bogus to some, but hear me out… I do understand why this happen. Tests can create a feeling of ...
java-interview-questions-answers

NUMA architecture and Java

Time to deploy your application, looking forward to procure hardware that suits best to the load requirements. Boxes with 40 cores or 80 cores are pretty common these days. General ...
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Testing client side of RESTful services

Develop an application that uses RESTful web API may imply developing server and client side. Writing integration tests for server side can be as easy as using ...
spring-interview-questions-answers

Spring Testing Support and Context caching

Spring provides a comprehensive support for unit and integration testing – through annotations to load up a Spring application context, integrate with unit testing frameworks ...
spring-interview-questions-answers

Spring MVC 3 Template and Apache Tiles

An efficient design consideration for any web application is the use of a template engine (or tool), and with Spring’s “pluggable” nature, it is indeed much more easier to integrate ...
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