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Spring Singleton, Request, Session Beans and Thread Safety

The Spring framework ecosystem comprising of so many useful frameworks has become the backbone of many Java EE application. But at the core of all the spring products we still have ...
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High performance JPA with GlassFish and Coherence – Part 1

Have you heard about Coherence before? Probably yes. It’s one of those famous in-memory grid solutions promising awesome fast data access and unlimited space for your ...
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JBoss AS 7 EJB3 Pools Configuration

Now that AS 7.0.1 has been released, let’s take a look at what new EJB3 features are available. Like I mentioned in my previous post, AS 7.0.1 now allows you to configure pools ...
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Everybody Knows About MVC…

From a recent blog, you may have gathered that I’ve recently been conducting some interviews and as they were for web application developers a question I asked was “can you explain ...
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Java RESTful API integration testing

This post will focus on basic principles and mechanics of writing Java integration tests for a RESTful API (with a JSON payload). The goal is to provide an introduction to the technologies ...
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Spring & Quartz Integration with Custom Annotation, the SPANN way

In a previous post, we demonstrated how to create and configure Quartz jobs with annotations in a Spring container. We used a class-level annotation to add some metadata to a bean which ...
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Log4j, Stat4j, SMTPAppender Integration – Aggregating Error Logs to Send Email When Too Many

Our development team wanted to get notified as soon as something goes wrong in our production system, a critical Java web application serving thousands of customers daily. The idea ...
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What are procedures and functions after all?

Many RDBMS support the concept of “routines”, usually calling them procedures and/or functions. These concepts have been around in programming languages for a while, also outside ...
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The new Java Caching Standard (javax.cache)

This post explores the new Java caching standard: javax.cache. How it Fits into the Java Ecosystem This standard is being developed by JSR107, of which the author is co-spec lead. JSR107 ...
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Java Secret: Loading and unloading static fields

OVERVIEW To start with it is natural to assume that static fields have a special life cycle and live for the life of the application. You could assume that they live is a special place ...
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