• cognitive: code that respects working memory — Miller's 7±2 over Java source (and the parsing library that fell out of building it)
• Contrax: lightweight, extensible Design by Contract enforced at compile time (and the annotation-processing library that fell out of building it)
• intervals & progressions: name the boundary, get Allen's algebra, stop re-inventing the for loop
• Language Encounters Center: type-safe, compile-time i18n/l10n
• software.visionary.publish: a clean-room Gradle publishing plugin (and the four-year-old bug it fixes by default)
• Loial: Fast, Lean, and High Quality Java Object Serialization