diff --git a/.github/workflows/maven-build.yml b/.github/workflows/maven-build.yml
index 514b97e8be..1e06437afc 100644
--- a/.github/workflows/maven-build.yml
+++ b/.github/workflows/maven-build.yml
@@ -32,6 +32,28 @@ jobs:
         env:
           MAVEN_OPTS: ${{ env.JAVA_11_PLUS_MAVEN_OPTS }}
         run: mvn -B clean install -DskipTests --file pom.xml
+  site:
+    name: site (Java ${{ matrix.java }})
+    runs-on: ubuntu-latest
+    strategy:
+      fail-fast: false
+      matrix:
+        java: [ 8, 11 ]
+    steps:
+      - uses: actions/checkout@v2
+      - name: Set up JDK
+        uses: actions/setup-java@v2
+        with:
+          java-version: ${{ matrix.java }}
+          distribution: 'adopt'
+      - uses: actions/cache@v2.1.6
+        with:
+          path: ~/.m2/repository
+          key: ${{ runner.os }}-maven-${{ hashFiles('**/pom.xml') }}
+          restore-keys: |
+            ${{ runner.os }}-maven-
+      - name: Maven Site
+        run: mvn -B  clean site -D enable-ci --file pom.xml
   test:
     name: test (${{ matrix.os }}, Java ${{ matrix.java }})
     runs-on: ${{ matrix.os }}-latest
diff --git a/src/main/java/org/kohsuke/github/GHRepository.java b/src/main/java/org/kohsuke/github/GHRepository.java
index 78fa5bb5de..ca06de69ed 100644
--- a/src/main/java/org/kohsuke/github/GHRepository.java
+++ b/src/main/java/org/kohsuke/github/GHRepository.java
@@ -3220,6 +3220,8 @@ public <T> T readTar(InputStreamFunction<T> streamFunction, String ref) throws I
      *            the eventType
      * @param clientPayload
      *            a custom payload , can be nullable
+     * @param <T>
+     *            type of client payload
      * @throws IOException
      *             the io exception
      */