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Memory-Hogging Enum.values() Method

I’m a big fan of Java’s enum. It seemed like we waited forever to get it, but when we did finally get it (J2SE 5), the enum was so much better than that provided by C and C++ that it seemed to me “well worth the wait.” As good as the Java enum is, it’s not without issues. In particular, ...

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Streaming data out of a Corda node with Spring WebFlux

It’s been a while since my last post but I’m finally back! Since I am still on my project, I will be writing about using Corda again. This time, rather than focusing on Corda, we’ll look at using Spring with Corda. More specifically, Spring WebFlux. Why do this? One, because we can. Two, because it allows us to stream events ...

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HTTP/2 Server Push

The new version of the HTTP protocol, HTTP/2 lets the server to push content to the client before the client requests the particular content. There are many other modifications in the protocol if we compare the previous version 1.1 with the new version 2, but in this article, I will focus on the push functionality. I will discuss briefly how ...

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Scala Tuple performance

Tuple is very powerful construct in programming language, it allows to create sequence of finite elements. Elements in tuple can be of different type and very easy to declare like (“something”,1,new Date()) Nice thing about tuple is you have to only decided on data type of element not the name. Computer science has 2 hard problem : Cache invalidation and ...

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Java Lambda Streams and Groovy Clouses Comparisons

This Blog post will look at some proverbial operations on List data structure and make some comparison between Java 8/9 and Groovy syntax. So firstly, the data structure.  It’s just a simple Rugby player who has name and a rating. Java class RugbyPlayer { private String name; private Integer rating; RugbyPlayer(String name, Integer rating) { this.name = name; this.rating = ...

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