Java8 Lambdas: Sorting Performance Pitfall EXPLAINED

Written in collaboration with Peter Lawrey. A few days ago I raised a serious problem with the performance of sorting…

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How to Translate SQL GROUP BY and Aggregations to Java 8

I couldn’t resist. I have read this question by Hugo Prudente on Stack Overflow. And I knew there had to…

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The Decorator Pattern With Java 8

In a recent post I described how the decorator pattern saved my day. I gave a small code snippet which…

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Java 8 Functional Programming: Lazy Instantiation

Singletons often instantiate themselves lazily, and sometimes, if the object is heavy enough, class fields can be instantiated lazily. Generally,…

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Using Java 8 to Prevent Excessively Wide Logs

Some logs are there to be consumed by machines and kept forever. Other logs are there just to debug and…

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Java Lambdas and Low Latency

Overview The main question around the use of Lambdas in Java and Low Latency is; Does they produce garbage and…

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2015 Starts Off Strong for Java 8

JDK 8 is starting 2015 with a surge in popularity in terms of blog posts and articles. This is coinciding…

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Java8 Sorting – Performance Pitfall

Java 8 brings all the goodness of lambdas to enable us to program using a declarative style. But is it…

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Fail-fast validations using Java 8 streams

I’ve lost count of the number of times I’ve seen code which fail-fast validates the state of something, using an…

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