Why architecture matters here

Leyden failures come from expecting native-image behavior. Architecture matters because Leyden preserves dynamic while native image restricts.

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The architecture: every piece explained

The top strip is basics. Standard JDK. AOT compilation. Startup improvement. Condensers.

The middle row is compatibility. Class data cache. vs GraalVM native. Reflection preserved. Warm cache carried.

The lower rows are practice. Use cases. Trade-offs. Ops — build + test + rollout.

Project Leyden — AOT + startup + condensers + compatibilityfaster start + smaller JVM without giving up dynamicStandard JDKstarting pointAOT compilationahead-of-timeStartup improvementload fasterCondensersshrink applicationClass data cacheCDS + AppCDSCompatibilityvs GraalVM nativeReflection preservedno closed-worldWarm cache carriedpeak perf preservedUse casesmicroservices + CLITrade-offsvs Native ImageOps — build + test + rolloutcachecomparekeeppreservetargettradetradeoperateoperate
Project Leyden: AOT + condensers + compatibility.
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End-to-end flow

End-to-end: microservice built with Leyden. AOT compilation produces static image. Startup drops from 5s to 500ms; memory 40% less. Reflection code still works. Warm cache preserved for peak throughput.