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A Tour Through elasticsearch-kopf

When I needed a plugin to display the cluster state of Elasticsearch or needed some insight into the indices I normally reached for the classic plugin elasticsearch-head. As it is recommended ...
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Spring Security Misconfiguration

I recently saw Mike Wienser’s SpringOne2GX talk about Application Security Pitfalls. It is very informative and worth watching if you are using Spring’s stack on servlet container. It ...
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Cluster-wide Java/Scala application deployments with Docker, Chef and Amazon OpsWorks

Docker is great for running isolated containers on a single node. However, most software systems run on multiple nodes, so in addition to Docker, we need some way of specifying which ...
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Apache Ant tasks for JMX access

I wanted to invoke JMX operations from the Ant tasks. However finding usable ant tasks library as well as the usage was rather tricky. So let me share my experience to make things easier ...
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Testing with Aliens: How to test a JPA type converter with Arquillian

This post was written together with +Aslak Knutsen (@aslakknutsen). JPA type converters provide an easy way to define how an entity attribute gets persisted to the database. You can ...
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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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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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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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