Jordan Lord lays out three constraints he applies before building anything: a one-page description that survives without padding, a piece of core tech that can outlive the product, and a single defining constraint that shapes the user experience. Scope, leverage, and identity - one filter each. Great stuff.
MethodHandle has been in the JDK since Java 7, and most Java developers have a vague sense that it exists somewhere near invokedynamic and lambda internals. David Lloyd's ongoing series covers the mechanics thoroughly. What it doesn't cover is when you'd actually reach for it - and why.
Most teams don't trust their code - they trust the people who wrote it, or the streak of days without incident. That's not the same thing, and the difference is becoming harder to ignore. Trust in a system isn't social capital or accumulated momentum: it's demonstrated, repeatedly and verifiably, by the system itself. If you have to read the code to know it works, you don't know it works.
I chose 21 matches in nevet, the bot that accompanies bytecode.news, deliberately. It's a command, triggered with 21 matches, and it wants you to take between one and three matches every turn; the...