diff --git a/.github/workflows/samples-groovy.yaml b/.github/workflows/samples-groovy.yaml
new file mode 100644
index 00000000000..06fe5cc117f
--- /dev/null
+++ b/.github/workflows/samples-groovy.yaml
@@ -0,0 +1,45 @@
+name: Samples Groovy
+
+on:
+  push:
+    paths:
+      - 'samples/client/petstore/groovy**'
+  pull_request:
+    paths:
+      - 'samples/client/petstore/groovy**'
+
+env:
+  GRADLE_VERSION: 6.9
+
+jobs:
+  build:
+    name: Build Groovy
+    runs-on: ubuntu-latest
+    strategy:
+      fail-fast: false
+      matrix:
+        sample:
+          - samples/client/petstore/groovy
+    steps:
+      - uses: actions/checkout@v2
+      - uses: actions/setup-java@v2
+        with:
+          distribution: 'temurin'
+          java-version: 8
+      - name: Cache maven dependencies
+        uses: actions/cache@v2.1.7
+        env:
+          cache-name: maven-repository
+        with:
+          path: |
+            ~/.gradle
+          key: ${{ runner.os }}-${{ github.job }}-${{ env.cache-name }}-${{ hashFiles('**/pom.xml') }}
+      - name: Install Gradle wrapper
+        uses: eskatos/gradle-command-action@v2
+        with:
+          gradle-version: ${{ env.GRADLE_VERSION }}
+          build-root-directory: ${{ matrix.sample }}
+          arguments: wrapper
+      - name: Build
+        working-directory: ${{ matrix.sample }}
+        run: ./gradlew build -x test
diff --git a/.github/workflows/samples-spring.yaml b/.github/workflows/samples-spring.yaml
index 1ef4290138e..6f8ac853798 100644
--- a/.github/workflows/samples-spring.yaml
+++ b/.github/workflows/samples-spring.yaml
@@ -41,6 +41,7 @@ jobs:
           - samples/openapi3/server/petstore/springboot-implicitHeaders
           - samples/server/petstore/springboot-delegate
           - samples/openapi3/server/petstore/springboot-delegate
+          - samples/server/petstore/spring-boot-nullable-set
     steps:
       - uses: actions/checkout@v2
       - uses: actions/setup-java@v2