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Changelog

v0.4.0 — 2026-09-19

Preserve bytecode semantics and separate decompilation results from independent compilation, JVM verification, and runtime observations.

  • Fix signed switch/default identity, wide branches and local accesses, exception-handler ownership, loop exits, reference joins, and array side effects.
  • Add DecompileWithOptions with precision/compatibility modes, method-local analysis budgets, type resolution, rewrite provenance, and degradation diagnostics. Existing APIs retain compatibility behavior.
  • Add immutable instruction-flow/reaching-definition analysis; remove selected guessed source repairs and isolate concurrent request and synthetic-catch state.
  • Add 250 isolated semantic round trips to the JDK 17 and 21 CI matrix, with original classes absent from rebuilt classpaths and separate compile/verify/runtime records. Cover legal wide bytecode, malformed decoder inputs, determinism, and race checks.
  • Preserve full OS/Go test coverage while sharding the large race corpus without reducing determinism repetitions. Cache persistent stack depth for O(1) Size.
  • Repair nested JSR expansion, reference-web declaration types, constructor and assignment ordering, retry/cleanup regions, catch identity and Kotlin monitor boundaries.
  • Enforce all 38 historical JARs in CI with 174 SHA-256-pinned artifacts. Local comparison records zero new regressions, retaining all 20 compile-clean baseline JARs and increasing full compilations to 26; 4 existing stubs remain.

The historical v0.3.0 benchmark below is not current semantic acceptance evidence. See the complete corpus results and implementation boundaries. Full operand-stack SSA, general type constraints and irreducible restructuring remain incomplete.

v0.3.0 — 2026-09-05

34-jar tree-zero: the original 8 benchmark jars plus 6 expansion jars and 20 typical libraries all decompile, tree-recompile with 0 javac errors, repackage, and pass external JVM -Xverify:all.

  • Tree-clean 18,759 / 18,759 flattened units across 34 libraries. Syntax errors remain 0.
  • Full round-trip on 34/34 (locked in provenClean): original 8 (codec / gson / lang3 / jsoup / snakeyaml / fastjson2 / guava / spring-core), expansion 6 (jackson-databind / okhttp / collections4 / netty-handler / log4j-core / protobuf-java), and twenty typical libraries (asm, joda-time, commons-io, commons-compress, httpclient, slf4j-api, logback-core, caffeine, rxjava, javassist, xstream, commons-math3, HikariCP, jedis, junit, assertj-core, picocli, commons-pool2, zxing-core, freemarker).
  • Self-hosted algorithm round-trip still 14/14 byte-identical.
  • Dump reconstructs for the 20-jar remainder (boolean-zero, int-as-boolean, empty-synchronized missing return, checked-exception catch unions, $closeResource throws, and per-library remaining families), all kill-switched.

v0.2.0 — 2026-09-04

8-jar tree-zero: every benchmark jar decompiles, tree-recompiles with 0 javac errors, repackages, and passes external JVM -Xverify:all.

  • Tree-clean 4,487 / 4,487 flattened units across commons-codec 1.15, gson 2.8.9, jsoup 1.10.2, snakeyaml 2.2, fastjson2 2.0.43, commons-lang3 3.12.0, guava 28.2-android, spring-core 5.3.27. Syntax errors remain 0.
  • Full round-trip on all 8 (locked in provenClean): codec 107/107, gson 199/199, lang3 346/346, jsoup 241/241, snakeyaml 233/233, fastjson2 689/689, guava 1892/1892, spring 952/952 verify.
  • Rebuilt previously stubbed Monitor.enterWhen(Guard,long,TimeUnit) and InetAddresses.textToNumericFormatV6 (JDEC_LEAKED_EXCEPTION_SENTINEL_OFF).
  • Self-hosted algorithm round-trip 14/14 byte-identical (was 5/5).
  • Generic/CFG reconstructs that zeroed guava and spring (factory raw-return bridges, enclosing type-var arg casts, diamond+try sentinel reconstruct, switch-break missing return, method-ref FI casts, objenesis NSME wrap, and the rest of the kill-switched dump/rewriter chain).

v0.1.3

Prior tagged release on main.