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JUnit: testing exception with Java 8 and Lambda Expressions

In JUnit there are many ways of testing exceptions in test code, including try-catch idiom, JUnit @Rule, with catch-exception library. As of Java 8 we have another way of dealing with ...
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6 Reasons Not to Switch to Java 8 Just Yet

Java 8 is awesome. Period. But… after we had the chance to have fun and play around with it, the time has come to quit avoiding the grain of salt. All good things come with a price ...
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RxJava + Java8 + Java EE 7 + Arquillian = Bliss

Microservices are an architectural style where each service is implemented as an independent system. They can use their own persistence system (although it is not mandatory), deployment, ...
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Custom Cassandra Data Types

In the blog post Connecting to Cassandra from Java, I mentioned that one advantage for Java developers of Cassandra being implemented in Java is the ability to create custom Cassandra ...
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Auditing infrastructure for your app using Spring AOP, Custom annotations and Reflection

The next post will demonstrate how to write simple auditing using Spring AOP and annotations. The auditing mechanism will be clean, efficient and easy to maintain (and Kewwl!). I will ...
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Top 5 Java Performance Tuning Books – Best of Lot, Must read

Why Java developer should read a book on Performance tuning? When I first faced this question long time back, I thought I will do it later, but I never get back to that for a long time. ...
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Hibernate Identity, Sequence and Table (Sequence) generator

Introduction In my previous post I talked about different database identifier strategies. This post will compare the most common surrogate primary key strategies:IDENTITY SEQUENCE TABLE ...
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How to implement a custom password strength indicator in JSF

Verifying password strength using JavaScript is a common task. In this post, I will show how to add a password strength indicator to an JSF based web application. The password component ...
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Turning recursive file system traversal into Stream

When I was learning programming, back in the days of Turbo Pascal, I managed to list files in directory usingFindFirst, FindNext and FindClose functions. First I came up with a ...
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Writing Tests for Data Access Code – Unit Tests Are Waste

A few years ago I was one of those developers who write unit tests for my data access code. I was testing everything in isolation, and I was pretty pleased with myself. I honestly thought ...
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