This fun fact has been on my mind for a while, and a recent reddit thread about "Smuggling Checked Exceptions with Sealed Interfaces" made me write this post here. Namely, Java had union types before it was cool! (If you squint hard). What are union types? Ceylon is an underrated JVM language that never really … Continue reading Java’s Checked Exceptions Are Just Weird Union Types
Tag: Ceylon
Ceylon Might Just be the Only (JVM) Language that Got Nulls Right
Here we go again. THAT TOPIC. But hang on. The approach discussed here (and in the Ceylon language) is not something you see every day. At the same time, it is very cunning. Nulls are baked into the language ... or so it may seem. Indeed, in Ceylon, like in Kotlin (and possibly many other … Continue reading Ceylon Might Just be the Only (JVM) Language that Got Nulls Right
What the sun.misc.Unsafe Misery Teaches Us
Oracle will remove the internal sun.misc.Unsafe class in Java 9. While most people are probably rather indifferent regarding this change, some other people - mostly library developers - are not. There had been a couple of recent articles in the blogosphere painting a dark picture of what this change will imply: Dripstat's Removal of sun.misc.Unsafe … Continue reading What the sun.misc.Unsafe Misery Teaches Us
The Inconvenient Truth About Dynamic vs. Static Typing
Sometimes there are these moments of truth. They happen completely unexpectedly, such as when I read this tweet: https://twitter.com/whileydave/status/536422407297171457 David is the author of the lesser-known but not at all lesser-interesting Whiley programming language, a language that has a lot of static type checking built in it. One of the most interesting features of the … Continue reading The Inconvenient Truth About Dynamic vs. Static Typing
Java 8 Friday: Optional Will Remain an Option in Java
At Data Geekery, we love Java. And as we're really into jOOQ's fluent API and query DSL, we're absolutely thrilled about what Java 8 will bring to our ecosystem. Java 8 Friday Every Friday, we're showing you a couple of nice new tutorial-style Java 8 features, which take advantage of lambda expressions, extension methods, and … Continue reading Java 8 Friday: Optional Will Remain an Option in Java
Top 10 Ceylon Language Features I Wish We Had In Java
What does one do when Hibernate is "finished" and feature complete and one needs new challenges? Right. One creates a new JVM language called Ceylon. On November 12, 2013, Ceylon 1.0.0 was finally released and we congratulate the whole team at Red Hat for their achievements in what looks like a very promising new JVM … Continue reading Top 10 Ceylon Language Features I Wish We Had In Java