How to build and clear a reference data cache with singleton EJBs, Ehcache and MBeans

In this post I will present how to build a simple reference data cache in Java EE, using singleton EJBs…

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Custom Reason Phrase in HTTP status error message response with JAX-RS (Jersey)

In some of my recent work I got the request to produce a custom Reason Phrase in the  HTTP status…

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How to connect to MongoDB from a Java EE stateless application

In this post I will present how to connect to MongoDB from a stateless Java EE application, to take advantage…

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How to build and clear a reference data cache with singleton EJBs and MBeans

In one of my projects I had a requirement to load reference data from several sources in a Java EE 6…

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Spring Batch Tutorial with Spring Boot and Java Configuration

I’ve been working on migrating some batch jobs for Podcastpedia.org to Spring Batch. Before, these jobs were developed in my own…

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How to use the new Apache Http Client to make a HEAD request

If you’ve updated your Apache HTTP Client code to use the newest library (at the time of this writing it…

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Tutorial – REST API design and implementation in Java with Jersey and Spring

Looking to REST in Java? Then you’ve come to the right place, because in the blog post I will present…

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How to compose html emails in Java with Spring and Velocity

In this post I will present how you can format and send automatic emails with Spring and Velocity. Spring offers…

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