Merge branch 'createMoreArtifactsOnGithub'

Author: fhoeben

.github/workflows/build-fitnesse.yml

@@ -15,11 +15,11 @@ jobs:
           distribution: 'zulu'
           java-version: '8'
       - name: Validate Gradle wrapper
-        uses: gradle/wrapper-validation-action@e6e38bacfdf1a337459f332974bb2327a31aaf4b
+        uses: gradle/wrapper-validation-action@v1
       - name: Build with Gradle
-        uses: gradle/gradle-build-action@937999e9cc2425eddc7fd62d1053baf041147db7
+        uses: gradle/gradle-build-action@v2
         with:
-          arguments: build
+          arguments: build slimJar sourcesJar javadocJar
           # Only write to the cache for builds on the 'master' branch.
           # Builds on other branches will only read existing entries from the cache.
           cache-read-only: ${{ github.ref != 'refs/heads/master' }}

build.gradle

@@ -233,6 +233,7 @@ task javadocJar(type: Jar) {
 task sourcesJar(type: Jar) {
   mustRunAfter check
   archiveClassifier = 'sources'
+  duplicatesStrategy = 'include'
   from sourceSets.main.allSource
 }