ci: java ci to make jars

.github/workflows/java.yml

@@ -0,0 +1,43 @@
+name: java
+
+on:
+  push:
+    branches:
+      - ci
+      - stable
+
+permissions:
+  contents: read
+
+jobs:
+  build:
+    runs-on: ${{ matrix.platform.runner }}
+    strategy:
+      fail-fast: false
+      matrix:
+        platform:
+          - runner: ubuntu-latest
+            target: linux-x64-gnu
+            filename: libcodemp.so
+          - runner: windows-latest
+            target: win32-x64
+            filename: codemp.dll
+          - runner: macos-14
+            target: darwin-arm64
+            filename: codemp.dylib
+          #- runner: macos-12
+          #  target: darwin-x64
+          #  filename: codemp.dylib
+    steps:
+      - uses: actions/checkout@v4
+      - uses: dtolnay/rust-toolchain@stable
+      - uses: arduino/setup-protoc@v3
+      - uses: gradle/actions/setup-gradle@v4
+        with:
+          gradle-version: "8.10" # Quotes required to prevent YAML converting to number
+      - run: gradle build
+        working-directory: dist/java
+      - uses: actions/upload-artifact@v4
+        with:
+          name: codemp-java-${{ matrix.platform.target }}
+          path: dist/java/build/libs