A Java Geek weekly 138

Markdown is everywhere, and I’m more than happy if it meets your needs. I had several experiences where it didn’t meet my expectations: technical documentation, workshops, courses, and book writing. Asciidoc is the perfect tool to fill Markdown’s gaps.

Since 1994, Infomaniak has followed the same path: privacy, environmental responsibility, and local roots. Thirty-two years on, these commitments are no longer just promises. On 13 May 2026, our founder Boris Siegenthaler transferred the majority of Infomaniak’s voting rights to a Swiss public-interest foundation: the Infomaniak Foundation. An irrevocable move, rare in Europe, that places the company beyond the reach of any takeover and sets its DNA in stone. For you, our customers, this means one thing: your cloud will remain Swiss, independent, and true to its values. Forever.

Your Compiler Is Already Part of Your Security Team made the case for domain primitives — types that encode business constraints, as opposed to Java primitives (int, double, long). Wrap an int in a PositiveInt and the compiler rejects invalid states forever. The recurring objection: a wrapper class per int is one heap object per value, plus a pointer to reach it. Fine at the boundary; questionable in a hot loop where allocations and cache misses dominate.

Project Valhalla changes the trade-off. Value classes let the JVM flatten the wrapper into the array slot, the register, the enclosing object — no header, no indirection. All experiments here run on openjdk 27-jep401ea3, the current Valhalla EA build implementing JEP 401.

In 2025 I have spend some time to untangle my digital life from billionaire/fascist (that Venn diagram is becoming more of a circle each and every day) run platforms. So at the beginning of 2026 maybe it makes sense to talk a bit about what I did, why I went certain ways and what works and what doesn’t.