Vendor OSInfo from xerial/sqlite-jdbc with Apache-2.0 license (#171)

* Replace OSInfo with 1:1 vendored copy from xerial/sqlite-jdbc

OSInfo originated in snappy-java (Taro L. Saito, 2008) and was carried
into this project via kherud/java-llama.cpp. The most actively
maintained copy of the same class today lives in xerial/sqlite-jdbc
(same author/org, last touched April 2026 with Android fixes, plus
~16 commits 2020-2026 including RISCV64, isMusl(), and several Android
refinements).

Supersedes prior local edits: the REUSE MIT rewrite (#149), the
typo fix (#166), and the SonarQube InterruptedException re-interrupt
fix (#170) on OSInfo are all rolled back in favour of a true verbatim
resync. Only deviations from the upstream file:

  1. package org.sqlite.util -> package net.ladenthin.llama
  2. system property "org.sqlite.osinfo.architecture"
     -> "net.ladenthin.llama.osinfo.architecture"

Both deviations are documented in the per-file header. The original
Apache-2.0 boilerplate is preserved verbatim. Per-file SPDX-License-
Identifier is Apache-2.0; the project remains MIT overall.

Same-package helpers (Logger, LoggerFactory, AndroidSignatureIgnore)
are vendored alongside, each carrying their own SPDX-FileCopyrightText
lines drawn from git log of the sqlite-jdbc repo. LoggerFactory uses
SLF4J when present and falls back to java.util.logging otherwise, so
slf4j-api is declared <optional>true</optional> in pom.xml at 2.0.18
(latest stable as of Maven Central metadata 2026-05-12).

LICENSES/Apache-2.0.txt added so reuse lint stays green
(140/140 files compliant with REUSE 3.3).

Verified:
- mvn clean compile: BUILD SUCCESS
- mvn test -Dtest=OSInfoTest: 16/16 pass
- mvn test -Dtest=LlamaLoaderTest: BUILD SUCCESS
- reuse lint: compliant with REUSE 3.3

* Drop vendored Logger/LoggerFactory wrapper; use SLF4J + Logback directly

The OSInfo resync from xerial/sqlite-jdbc brought a same-package
Logger / LoggerFactory pair that re-implemented a tiny SLF4J facade.
For this project that wrapper is dead weight: depending on slf4j-api
directly and shipping logback-classic at runtime scope gives the same
behaviour with no hand-maintained code.

Changes:

- Delete src/main/java/net/ladenthin/llama/Logger.java
- Delete src/main/java/net/ladenthin/llama/LoggerFactory.java
- OSInfo.java: import org.slf4j.Logger / org.slf4j.LoggerFactory
  directly. Drop the Supplier<String> lazy form at the two
  LogHolder.logger call sites in getHardwareName() and
  resolveArmArchType() (both messages are constant strings, so eager
  construction is free). Header comment lists this as a third
  documented deviation from the upstream sqlite-jdbc file.
- pom.xml: slf4j-api 2.0.18 -> non-optional (compile). Add
  logback-classic 1.5.32 at runtime scope as the default binding.

AndroidSignatureIgnore.java is kept as-is — it is a marker annotation,
not a logging shim, and removing it would add a 4th deviation from
upstream for no gain.

Verified:
- mvn clean compile: BUILD SUCCESS
- mvn test -Dtest=OSInfoTest,LlamaLoaderTest: 37/37 pass
- mvn dependency:tree: slf4j-api:compile, logback-classic:runtime,
  logback-core:runtime (transitive). No duplicate binding.
- reuse lint: 138/138 files compliant with REUSE 3.3.

* Replace custom AndroidSignatureIgnore with standard @IgnoreJRERequirement

sqlite-jdbc's AndroidSignatureIgnore was a custom marker annotation
that only had meaning when their pom.xml configured the
animal-sniffer-maven-plugin with
<annotation>org.sqlite.util.AndroidSignatureIgnore</animation>. This
project does not configure animal-sniffer, so the vendored copy of
the annotation was inert.

Replaced with the standard @IgnoreJRERequirement from
org.codehaus.mojo:animal-sniffer-annotations 1.27 (latest stable).
The plugin recognises this annotation out of the box, so if signature
checking is ever enabled here it will work with zero further config.

Changes:

- pom.xml: add animal-sniffer-annotations 1.27, scope=provided
  (retention=CLASS, not needed at runtime).
- Delete src/main/java/net/ladenthin/llama/AndroidSignatureIgnore.java
- OSInfo.java:
  * Import org.codehaus.mojo.animal_sniffer.IgnoreJRERequirement.
  * Replace the three @AndroidSignatureIgnore(explanation = "Should
    not reach this code path") sites in isMusl, toRealPathOrEmpty,
    and isAlpineLinux with @IgnoreJRERequirement plus a one-line //
    comment preserving the explanation (the standard annotation has
    no explanation field).
  * Header lists this as a 4th documented deviation from upstream.

Verified:
- mvn clean compile: BUILD SUCCESS
- mvn test -Dtest=OSInfoTest,LlamaLoaderTest: 37/37 pass
- reuse lint: 137/137 files compliant with REUSE 3.3.

---------

Co-authored-by: Claude <noreply@anthropic.com>

Author: bernardladenthin

LICENSES/Apache-2.0.txt

@@ -0,0 +1,73 @@
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pom.xml

@@ -73,6 +73,29 @@ SPDX-License-Identifier: MIT
 			<artifactId>jackson-databind</artifactId>
 			<version>2.21.3</version>
 		</dependency>
+		<!-- Required by OSInfo (vendored from xerial/sqlite-jdbc) for log emission. -->
+		<dependency>
+			<groupId>org.slf4j</groupId>
+			<artifactId>slf4j-api</artifactId>
+			<version>2.0.18</version>
+		</dependency>
+		<!-- Default SLF4J binding shipped with this library. Runtime scope: not
+		     required on the compile classpath, only loaded at JVM startup. -->
+		<dependency>
+			<groupId>ch.qos.logback</groupId>
+			<artifactId>logback-classic</artifactId>
+			<version>1.5.32</version>
+			<scope>runtime</scope>
+		</dependency>
+		<!-- @IgnoreJRERequirement marker used by OSInfo (vendored from xerial/sqlite-jdbc)
+		     on a few methods that touch APIs unavailable on Android. Retention=CLASS, so
+		     the dep is compile-only (provided scope). -->
+		<dependency>
+			<groupId>org.codehaus.mojo</groupId>
+			<artifactId>animal-sniffer-annotations</artifactId>
+			<version>1.27</version>
+			<scope>provided</scope>
+		</dependency>
 	</dependencies>
 
 	<build>