add Springboot4 to CI workflow

Author: tobixlea

.github/workflows/continuous-integration-workflow.yml

@@ -82,6 +82,18 @@ jobs:
       - name: Build with Spring Boot 3.3.x
         run: ./gha_build.sh springboot3 false false -Dspringboot.version=3.3.6 -Dspring.version=6.1.15 -Dspringsecurity.version=6.3.5 -Ddependency-check.skip=true
 
+  build_springboot4:
+    name: Build and test SpringBoot 4
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v3
+      - name: Set up JDK 17
+        uses: actions/setup-java@v3
+        with:
+          distribution: 'corretto'
+          java-version: 17
+      - name: Build latest
+        run: ./gha_build.sh springboot4 true true
 # temporarily disabled as Struts is not released at the moment
 #  build_struts2:
 #    name: Build and test Struts

aws-serverless-java-container-springboot4/pom.xml

@@ -84,8 +84,8 @@
                 <groupId>org.apache.maven.plugins</groupId>
                 <artifactId>maven-compiler-plugin</artifactId>
                 <configuration>
-                    <source>25</source>
-                    <target>25</target>
+                    <source>21</source>
+                    <target>21</target>
                 </configuration>
             </plugin>
         </plugins>