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JavaMail can be evil (and force you to restart your app server)

JavaMail always had an interesting approach when it comes to its configuration. Basically you have to fill an untyped map or Properties structure and hope for the correct interpretation. ...
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Stop Trying to Emulate SQL OFFSET Pagination with Your In-House DB Framework!

I’m pretty sure you’ve gotten it wrong in numerous ways, so far. And you probably won’t get it right any time soon. So why waste your precious time on SQL tweaking, when you could ...
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Hibernate Debugging – Finding the origin of a Query

It’s not always immediate why and in which part of the program is Hibernate generating a given SQL query, especially if we are dealing with code that we did not write ourselves. This ...
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Creating files and directories in NIO.2

Great number of applications nowadays create files or directories for very wide range of purposes. Whether it is to generate a report, export piece of configuration or simply to store ...
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Pitfalls of the Hibernate Second-Level / Query Caches

This post will go through how to setup the Hibernate Second-Level and Query caches, how they work and what are their most common pitfalls. The Hibernate second level cache is an application ...
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Working with files and directories in NIO.2

In previous articles I discussed creation (Creating files and directories) and selection (Listing and filtering directory contents) of files and directories. The last logical step to ...
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RSS Reader Using: ROME, Spring MVC, Embedded Jetty

In this post I will show some guidelines to create a Spring web application, running it using Jetty and using an external library called ROME for RSS reading. General I have recently ...
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A beginner’s guide to Hibernate Types

The basic mapping concepts When learning Hibernate many like to jump to parent-child associations without mastering the object relation mapping basics. It’s very important to understand ...
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Listing a ZIP file contents with Stream API in Java 8

In Java 8 java.util.zip.ZipFile was equipped with a stream method that allows navigating over a ZIP file entries very easily. In this blog post I will show a bunch of examples showing ...
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Handle Every Event in Your Akka Application

Event here, event there, events flying everywhere. Post about checking that every Akka event will finally find its home. Akka and reactive, event-based applications are new approach ...
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