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Java Peaked With Version 7

Next week sees the launch of Java 17. This is the 8th release since Java moved to its six-monthly release cycle. This means nine releases have taken place in the same time that it took to go from version 6 to 7.

But, personally, I think the best version of Java is Java 7. The first time I said this I was joking, having just wrestled with some very complicated code that someone had written using streams. But the more I think about this, the more certain I am that this is right.

I can understand the pressure to keep adding features to improve Java. I remember the noughties, when everyone said Java was going to be replaced by newer, cooler languages. Java might be verbose and clunky but it’s also consistent. Pre-Java 8, there tended to be only one or two ways of doing things, and code would look relatively similar between different companies. Being a simple language, it was easy for developers to follow what was happening. There was less space for clever code that junior developers couldn’t understand. 

Java 8 was exciting, providing new paradigms for Java. But it’s made code more idiomatic and it’s easier to write obfuscated code. Compare it with perl, a language that was intentionally designed to be expressive. It’s not used in many large-scale systems. 

I can understand the pressure to add new features. Sometimes Java is frustrating. But Kotlin and Scala have set out their stalls as advanced languages on the JVM. They’re compatible with Java too, so there’s a strong argument for keeping Java as the dull boring option. I might want to use Scala or Kotlin in my own projects, but where I’m collaborating with multinational teams working agilely (which, in practise, means no documentation) I like my Java code as simple as it can be.

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