gradle, build and sign artifacts in 2 steps

release is not from windows 2019, daemon can be used

.github/workflows/ci-gradle.yml

@@ -78,8 +78,6 @@ jobs:
             os: ubuntu-20.04
             java_version: 8
     runs-on: ${{ matrix.os }}
-    env:
-      SIGN_ARTIFACTS: ${{ secrets.ARTIFACT_SIGNING_KEY != '' }}
     steps:
       - name: Checkout the repository
         uses: actions/checkout@v2
@@ -101,6 +99,10 @@ jobs:
       # The repeated "matrix.release_from_this_build" checks are messy, but I have not found a simple way to avoid them
       # See https://github.com/actions/runner/issues/662
 
+      - name: Create artifacts
+        if: matrix.release_from_this_build
+        run: gradle -q build -x test
+
       - name: Setup gpg
         if: matrix.release_from_this_build && env.ARTIFACT_SIGNING_KEY
         id: gpg
@@ -114,14 +116,13 @@ jobs:
           key_id="$(echo "${ARTIFACT_SIGNING_KEY}" | gpg --batch --show-keys --with-colons | awk -F: '$1 == "sec" { print $5 }')"
           echo "::set-output name=key_id::${key_id}"
 
-      - name: Create artifacts
-        if: matrix.release_from_this_build
+      - name: Sign artifacts
+        if: matrix.release_from_this_build && env.ARTIFACT_SIGNING_KEY
         env:
           GPG_KEYNAME: ${{ steps.gpg.outputs.key_id }}
           GPG_PASSPHRASE: ${{ secrets.ARTIFACT_SIGNING_PASSPHRASE }}
         run: |
           gradle sign "-Pversion=${POM_VERSION}"\
-            "--no-daemon" \
             "-Psigning.gnupg.keyName=${GPG_KEYNAME}" \
             "-Psigning.gnupg.passphrase=${GPG_PASSPHRASE}"