Use WinRAR's directory-attribute listing as a counted type source so bare folder entries remain valid while file-directory aliases are still rejected.
Emit only removed for successfully deleted JVM partial outputs so asynchronous consumers preserve the original archive error instead of reporting a stale missing file.
Build a typed normalized target plan for internal ZIP, native list preflight, Zip4j, and SevenZipJBinding before any output directory or file is mutated. Reject file-directory aliases, file ancestors, case-insensitive aliases, and duplicate file targets while allowing identical directory declarations. Preserve linear archive planning and ship the rebuilt Java runtime classes.
Plan and validate every internal ZIP, Zip4j, and SevenZipJBinding entry and final conflict target before any archive output mutates the filesystem. Preserve raw RAR list entry whitespace for strict validation and keep any non-matching package owner marker immutable while direct scoped outputs continue without marker reissuance.
Reject alternate data streams, reserved Win32 device names, and trailing-dot or trailing-space aliases before internal ZIP, JVM, or native extraction writes. Preflight native archive entry lists, reconcile opened JVM outputs to partial or removed state on abnormal results, and replace hardlink-based owner markers with portable exclusive reservation plus atomic replacement while allowing direct scoped extraction to continue when marker persistence is unavailable.
Reject symlink and reparse boundaries before internal ZIP or JVM outputs are opened, track opened, committed, partial, removed output lifecycle events, and convert output callback failures into controlled extractor failures without poisoning the JVM daemon. Gate legacy recovery behind an atomically created package-generation owner marker and keep unmarked reused or shared directories fail closed. Parse native RAR output from strictly verified locale-independent candidates while retaining ambiguous rename rejection.
Replace package staging assumptions with validated per-generation output records for internal ZIP and both JVM backends. Persist resume v2 using relative archive identities, complete member fingerprints, and concrete verified outputs so basename collisions, changed members, missing outputs, and unknown versions fail closed.
Launch the verified NSIS installer directly before application shutdown, wait for Windows to confirm process creation, and keep the application open on spawn failure. Move process waiting into NSIS with a bounded graceful and post-force termination check, and cover the handoff with updater regression tests.
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