update workflows & compile with javadocs

Author: Oribuin

.github/workflows/gradle.yml

@@ -12,7 +12,7 @@ jobs:
     name: Build
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v3
       - name: Restore gradle.properties
         env:
           GRADLE_PROPERTIES: ${{ secrets.GRADLE_PROPERTIES }}
@@ -21,13 +21,13 @@ jobs:
           mkdir -p ~/.gradle/
           echo "GRADLE_USER_HOME=${HOME}/.gradle" >> $GITHUB_ENV
           echo "${GRADLE_PROPERTIES}" > ~/.gradle/gradle.properties
-      - name: Set up JDK 17
+      - name: Set up JDK 21
         uses: actions/[email protected]
         with:
           distribution: 'temurin'
-          java-version: '17'
+          java-version: '21'
       - name: Cache
-        uses: actions/cache@v2
+        uses: actions/cache@v3
         with:
           path: |
             ~/.gradle/caches
@@ -43,4 +43,4 @@ jobs:
         uses: actions/upload-artifact@v4
         with:
           name: Fishing
-          path: ./build/libs/Fishing-**.jar
+          path: ./build/libs/Fishing-**.jar

build.gradle.kts

@@ -11,6 +11,8 @@ java {
     sourceCompatibility = JavaVersion.VERSION_17
     targetCompatibility = JavaVersion.VERSION_17
 
+    withJavadocJar()
+    withSourcesJar()
     disableAutoTargetJvm()
     toolchain {
         languageVersion.set(JavaLanguageVersion.of(21))