refactor: add jdk8 compile check

Signed-off-by: moxiaoying <1159230165@qq.com>
Co-authored-by: Zhangjian He <hezhangjian97@gmail.com>

Author: CennyMo

.github/workflows/java8_compile.yml

@@ -0,0 +1,35 @@
+# Copyright 2025 OpenFacade Authors
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+name: java8 compile
+on:
+  push:
+    branches:
+      - main
+  pull_request:
+    branches:
+      - main
+
+jobs:
+  java8_compile:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - name: Set up Maven Central Repository
+        uses: actions/setup-java@v4
+        with:
+          java-version: '8'
+          distribution: 'temurin'
+      - name: compile
+        run: mvn -B clean package -Dmaven.test.skip=true -pl 'pulsar-admin,pulsar-admin-reactive' -am