Update JDK 17 build step to include spotless check (#5486)

* Update JDK 17 build step to include spotless check

as msg

* Modify build.yml to include code style check

Updated build workflow to run code style checks for JDK 17.

* Remove formatting step from PR checklist

Removed the requirement to run 'mvn spotless:apply' for formatting.

* Create separate workflow file for code style check (#5491)

* Initial plan

* Separate code style check into independent job

Co-authored-by: spaceluke <[email protected]>

* Add explicit permissions to code-style-check job

Co-authored-by: spaceluke <[email protected]>

* Move code style check to separate workflow file

Co-authored-by: spaceluke <[email protected]>

---------

Co-authored-by: copilot-swe-agent[bot] <[email protected]>
Co-authored-by: spaceluke <[email protected]>

* Update copyright year in code-style-check.yml

---------

Co-authored-by: Copilot <[email protected]>

Author: spaceluke

.github/PULL_REQUEST_TEMPLATE.md

@@ -15,4 +15,5 @@ Follow this checklist to help us incorporate your contribution quickly and easil
 - [ ] Write a pull request description that is detailed enough to understand what the pull request does, how, and why.
 - [ ] Write necessary unit tests to verify the code.
 - [ ] Run `mvn clean test` to make sure this pull request doesn't break anything.
+- [ ] Run `mvn spotless:apply` to format your code.
 - [ ] Update the [`CHANGES` log](https://github.com/apolloconfig/apollo/blob/master/CHANGES.md).

.github/workflows/code-style-check.yml

@@ -0,0 +1,45 @@
+#
+# Copyright 2025 Apollo 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.
+#
+# This workflow checks code style using Spotless
+
+name: code style check
+
+on:
+  push:
+    branches: [ master ]
+  pull_request:
+    branches: [ master ]
+
+jobs:
+  code-style-check:
+    runs-on: ubuntu-latest
+    permissions:
+      contents: read
+    steps:
+    - uses: actions/checkout@v4
+    - name: Set up JDK 17
+      uses: actions/setup-java@v1
+      with:
+        java-version: 17
+    - name: Cache Maven packages
+      uses: actions/cache@v4
+      with:
+        path: ~/.m2/repository
+        key: ${{ runner.os }}-maven-${{ hashFiles('**/pom.xml') }}
+        restore-keys: |
+          ${{ runner.os }}-maven-
+    - name: Code Style Check
+      run: mvn spotless:check