Shows how JavaFX 27 can be built as a GraalVM native image and run on a Raspberry Pi 5, demonstrating large startup and memory wins from ahead-of-time (AOT) compilation versus traditional JIT builds. Benchmarks on the AtlantaFX sampler show native-image cutting time-to-first-window from 3.6 s (jlink) to 0.5 s and first WebView visit from ~2.4 s to 0.22 s, while reducing private memory after startup by ~27% and after full page load by ~55%. JavaFX, including WebView, MediaPlayer and AWT integration, runs well once configured, but getting a complex GUI working with native-image requires solving substantial build-time problems and careful debugging.
Compares three solutions: Gluon Substrate (broad, mobile-and-desktop toolchain that handles many platforms but is complex, brittle, and lags newer JavaFX), BellSoft Liberica NIK (desktop-focused GraalVM distro that bundles JavaFX for quick starts but omits media/web support and linux-aarch64), and StaticFX (a new GraalVM Feature that provides static archives and glue without patching JavaFX sources, supports dynamic linking and all JavaFX modules, and targets GraalVM-supported platforms). Identifies three core challenges: reachability metadata for reflection/resources, building static native JavaFX binaries, and integration glue for static linking/initialization; notes application metadata tracing is especially painful for GUIs and motivates using Oracle GraalVM enterprise features for better optimizations.
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