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javademos/jextract/output/01-tools.txt
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asmhatreandClaude Sonnet 5.5 ecceaa8b32 Add jextract module: SQLite bindings generated with jextract, FFM arenas, C strings, out-parameters, errors, upcalls, and a JMH comparison with JNI
jextract-25 early-access build (25-jextract+2-4) on JDK 25.0.5+8 against SQLite 3.45.1: 25 functions and 13 constants
generated into 4 committed files (the whole header would be 83 files), a small Db wrapper, the four arena kinds
used wrongly on purpose, ADDRESS vs C_POINTER zero-length vs unbounded segments and the SIGSEGV from getString
on a NULL pointer, sqlite3_open out-parameter, return codes to exceptions, a sqlite3_exec upcall and the VM exit
when it throws, the JDK 25 native-access warning and --illegal-native-access=deny, library loading failures,
and a JMH benchmark of FFM vs hand-written JNI vs plain Java (indicative only: shared 2-CPU machine).

Co-Authored-By: Claude Sonnet 5.5 <[email protected]>
Claude-Session: https://claude.ai/code/session_017ic4b6Kg9RWSTJzyz6KP9X
2026-10-30 16:36:09 +00:00

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$ jextract --version
jextract 25
JDK version 25+37-3491
LibClang version clang version 13.0.0
$ java -version
openjdk version "25.0.5" 2026-10-20 LTS
OpenJDK Runtime Environment Temurin-25.0.5+8 (build 25.0.5+8-LTS)
OpenJDK 64-Bit Server VM Temurin-25.0.5+8 (build 25.0.5+8-LTS, mixed mode, sharing)
$ gcc --version | head -1
gcc (Ubuntu 13.3.0-6ubuntu2~24.04.1) 13.3.0
$ dpkg-query -W libsqlite3-dev libsqlite3-0
libsqlite3-0:amd64 3.45.1-1ubuntu2.8
libsqlite3-dev:amd64 3.45.1-1ubuntu2.8
$ grep -E '#define SQLITE_(VERSION|VERSION_NUMBER) ' /usr/include/sqlite3.h
#define SQLITE_VERSION "3.45.1"
#define SQLITE_VERSION_NUMBER 3045001