added github actions workflow

.github/workflows/mail-service.yml

@@ -0,0 +1,26 @@
+name: Java CI - mail-service
+
+on:
+ workflow_dispatch: 
+ push:
+ branches: [ "mail-service" ]
+
+jobs:
+ build:
+
+ runs-on: ubuntu-latest
+
+ steps:
+ - uses: actions/checkout@v3
+ - name: Set up JDK 21
+ uses: actions/setup-java@v4
+ with:
+ java-version: '21'
+ distribution: 'temurin'
+ cache: maven
+ - name: Run the Maven verify phase
+ run: mvn --batch-mode --update-snapshots verify
+ working-directory: code/mail-service/
+ - name: Build with Maven
+ run: mvn --batch-mode --update-snapshots package
+ working-directory: code/mail-service/

code/mail-service/src/main/java/ckb/MailService/controller/AllStudentsEmailSender.java

@@ -19,7 +19,6 @@
 @CrossOrigin(origins = "*")
 public class AllStudentsEmailSender extends EmailSender {
 
-
  private final MailService mailService;
  private final WebClient webClient;