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Thoughts On Comments

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Wow, telling people to comment their fucking code really hit a nerve. The reactions covered the whole spectrum from “just read Clean Code, dude” to “maybe some comments but just a little” to “OMG yes“. Now that I cooled down, I’ll tackle the topic again with less furor. I planned to write about my perspective on high quality comments but ...

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Random JCache stuff: multiple Providers and JMX beans

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JCache (JSR 107) is the Java standard for Caching… enough said. No more introductory stuff. This is a quick fire post which talks about Multiple JCache provider configurations, and Feature: JCache stats via JMX Mbeans Managing multiple JCache providers In case you are dealing with a single JCache provider, javax.jcache.Caching.getCachingProvider() returns an instance of the one and only CachingProvider on ...

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Unit testing HTTP calls with LocalTestServer

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There are times when you’re unit testing code that is making HTTP calls to a remote server. You could be using a library such as Apache’sHttpClient or Spring’s RestTemplate to do so. Of course, you don’t want to rely on a remote service for your unit tests. Besides the overhead involved (remember that unit test are supposed to be fast) ...

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Who Should be Your Product Owner?

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In agile, we separate the Product Owner function from functional (development) management. The reason is that we want the people who can understand and evaluate the business value to articulate the business value to tell the people who understand the work’s value when to implement what. The technical folks determine how to implement the what. Separating the when/what from how ...

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Getting started with Spark: it is possible to create lightweight RESTful application also in Java

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Recently I have been writing a RESTful service using Spark, a web framework for Java (which is not related to Apache Spark). When we planned to write this I was ready to the unavoidable Javaesque avalanche of interfaces, boilerplate code and deep hierarchies. I was very surprised to find out that an alternative world exists also for the developers confined to Java. In this ...

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Accessing Chronicle Engine via NFS

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Overview Chronicle Engine is a data virtualisation layer.  It abstracts away the complexity of accessing, manipulating and subscribing to various data source so that the user of that data doesn’t need to know how or where  the data is actually stored.  This means that this data can be migrated between systems or stored in a manner which is more efficient ...

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Application Performance Management solutions for the modern software-defined businesses

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In our previous article, we discussed the basics of Application Performance Management (APM) and how it can be used to lift you monitoring infrastructure to the next level. Organizations of all sizes have struggled to deploy monitoring and analytics solutions that can keep up with the rapid pace of change and fundamental architectural shifts in their application stack. On top ...

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Java 8’s Method References Put Further Restrictions on Overloading

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Method overloading has always been a topic with mixed feelings. We’ve blogged about it and the caveats that it introduces a couple of times: You Will Regret Applying Overloading with Lambdas! Keeping things DRY: Method overloading Why Everyone Hates Operator Overloading API Designers, be Careful There are two main reasons why overloading is useful: To allow for defaulted arguments To ...

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