https://www.pistack.xyz/tags/jsr-354/ Recent content in Jsr-354 on Pi Stack Hugo en-us Thu, 17 Sep 2026 00:00:00 +0000 https://www.pistack.xyz/posts/2026-09-17-java-money-libraries-moneta-joda-money-jsr354-comparison/ Thu, 17 Sep 2026 00:00:00 +0000 https://www.pistack.xyz/posts/2026-09-17-java-money-libraries-moneta-joda-money-jsr354-comparison/ <p>Every Java team eventually ships an invoice that is off by one cent. The cause is almost never a logic error — it is a <code>double</code>. Money stored in a binary floating-point primitive accumulates error the moment you divide, and by the time a rounding step runs, the value has already drifted. The fix is not discipline; it is putting money behind a type that refuses to lose precision. In Java there are exactly two libraries worth considering for that job: <strong>JSR-354 / Moneta</strong> and <strong>Joda-Money</strong>. They make opposite architectural bets, and the wrong choice costs you either a heavyweight API you never use or a missing feature you have to build yourself.</p>