JAVA-30991 :- Upgrade spring-boot-custom-starter to Boot 3. (#16140)

* JAVA-30991 :- Upgrade spring-boot-custom-starter to Boot 3.

* JAVA-30991 :- Upgrade spring-boot-custom-starter to Boot 3.

* JAVA-30991 :- Remove unnecessary imports.

* JAVA-30991 :- Used same parent pom and uncommented in the parent module.

spring-boot-modules/pom.xml

@@ -35,7 +35,7 @@
         <module>spring-boot-disable-logging</module>
         <module>spring-boot-ci-cd</module>
         <!-- <module>spring-boot-cli</module> --> <!-- Not a maven project -->
-<!--        <module>spring-boot-custom-starter</module>--> <!-- failing after upgrading to spring boot 3.2.x -->
+        <module>spring-boot-custom-starter</module>
         <module>spring-boot-crud</module>
         <module>spring-boot-data</module>
         <module>spring-boot-environment</module>

spring-boot-modules/spring-boot-custom-starter/greeter-spring-boot-sample-app/src/main/java/com/baeldung/greeter/GreeterSampleApplication.java

@@ -1,4 +1,4 @@
-package com.baeldung.greeter.sample;
+package com.baeldung.greeter;
 
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.boot.CommandLineRunner;
@@ -6,7 +6,6 @@ import org.springframework.boot.SpringApplication;
 import org.springframework.boot.autoconfigure.SpringBootApplication;
 
 import com.baeldung.greeter.library.Greeter;
-
 @SpringBootApplication
 public class GreeterSampleApplication implements CommandLineRunner {
 

spring-boot-modules/spring-boot-custom-starter/greeter-spring-boot-sample-app/src/test/java/com/baeldung/SpringContextTest.java

@@ -5,7 +5,7 @@ import org.junit.runner.RunWith;
 import org.springframework.boot.test.context.SpringBootTest;
 import org.springframework.test.context.junit4.SpringRunner;
 
-import com.baeldung.greeter.sample.GreeterSampleApplication;
+import com.baeldung.greeter.GreeterSampleApplication;
 
 @RunWith(SpringRunner.class)
 @SpringBootTest(classes = GreeterSampleApplication.class)

spring-boot-modules/spring-boot-custom-starter/greeter-spring-boot-sample-app/src/test/java/com/baeldung/greeter/GreeterSampleApplicationIntegrationTest.java

@@ -1,4 +1,4 @@
-package com.baeldung.greeter.sample;
+package com.baeldung.greeter;
 
 import static org.junit.Assert.assertEquals;
 

spring-boot-modules/spring-boot-custom-starter/pom.xml

@@ -23,4 +23,9 @@
         <module>parent-multi-module</module>
     </modules>
 
+    <properties>
+        <spring-boot.repackage.skip>true</spring-boot.repackage.skip>
+        <spring.boot.version>3.2.2</spring.boot.version>
+    </properties>
+
 </project>