Publish new releases to Maven Central

.github/workflows/release.yaml

@@ -0,0 +1,43 @@
+name: Publish Release Artifacts
+on:
+  release:
+    types: [ created ]
+
+permissions:
+  contents: write
+  packages: write
+  id-token: write
+
+jobs:
+  publish:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - name: Set up Java
+        uses: actions/setup-java@v3
+        with:
+          java-version: '17'
+          distribution: 'temurin'
+      - name: Validate Gradle wrapper
+        uses: gradle/wrapper-validation-action@v1
+      - name: Publish package
+        uses: gradle/gradle-build-action@v2.11.1
+        with:
+          arguments: publish
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+      - name: Publish package to Maven Central
+        uses: gradle/gradle-build-action@v2.11.1
+        with:
+          arguments: jreleaserFullRelease
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+          JRELEASER_MAVENCENTRAL_USERNAME: ${{ secrets.JRELEASER_MAVENCENTRAL_USERNAME }}
+          JRELEASER_MAVENCENTRAL_TOKEN: ${{ secrets.JRELEASER_MAVENCENTRAL_TOKEN }}
+          JRELEASER_COSIGN_PUBLIC_KEY: ${{ secrets.COSIGN_PUBLIC_KEY }}
+          JRELEASER_COSIGN_PRIVATE_KEY: ${{ secrets.COSIGN_PRIVATE_KEY }}
+          JRELEASER_COSIGN_PASSWORD: ${{ secrets.COSIGN_PASSWORD }}
+      - name: Add Artifact to GitHub Release
+        uses: softprops/action-gh-release@v1
+        with:
+          files: build/libs/solana4j-*.jar

cosign.pub

@@ -0,0 +1,4 @@
+-----BEGIN PUBLIC KEY-----
+MFkwEwYHKoZIzj0CAQYIKoZIzj0DAQcDQgAEsCXPH5ktMikAxAUbKq+xamo9woBE
+GLxqTUL7ihIqmQGcWOy2pBI3qLuRWDNqJP0ZeeRWtAJctLVY3K89fGhDVQ==
+-----END PUBLIC KEY-----