JAVA-27537 Upgrade spring-soap to Spring Boot 3 (#15438)

Author: timis1

spring-soap/pom.xml

@@ -9,9 +9,9 @@
 
     <parent>
         <groupId>com.baeldung</groupId>
-        <artifactId>parent-boot-2</artifactId>
+        <artifactId>parent-boot-3</artifactId>
         <version>0.0.1-SNAPSHOT</version>
-        <relativePath>../parent-boot-2</relativePath>
+        <relativePath>../parent-boot-3</relativePath>
     </parent>
 
     <dependencies>
@@ -42,10 +42,6 @@
             <artifactId>jaxb-runtime</artifactId>
         </dependency>
 
-        <dependency>
-            <groupId>javax.xml.bind</groupId>
-            <artifactId>jaxb-api</artifactId>
-        </dependency>
     </dependencies>
 
     <build>
@@ -77,9 +73,9 @@
             </plugin>
             <!-- end::xsd[] -->
             <plugin>
-                <groupId>org.jvnet.jaxb2.maven2</groupId>
-                <artifactId>maven-jaxb2-plugin</artifactId>
-                <version>${maven-jaxb2-plugin.version}</version>
+                <groupId>org.jvnet.jaxb</groupId>
+                <artifactId>jaxb-maven-plugin</artifactId>
+                <version>${jaxb-maven-plugin.version}</version>
                 <executions>
                     <execution>
                         <goals>
@@ -103,7 +99,7 @@
 
     <properties>
         <jakarta.xml.bind-api.version>4.0.0</jakarta.xml.bind-api.version>
+        <jaxb-maven-plugin.version>4.0.0</jaxb-maven-plugin.version>
         <jaxb2-maven-plugin.version>3.1.0</jaxb2-maven-plugin.version>
-        <maven-jaxb2-plugin.version>0.15.3</maven-jaxb2-plugin.version>
     </properties>
 </project>

spring-soap/src/main/java/com/baeldung/springsoap/CountryRepository.java

@@ -3,7 +3,7 @@
 import java.util.HashMap;
 import java.util.Map;
 
-import javax.annotation.PostConstruct;
+import jakarta.annotation.PostConstruct;
 
 import org.springframework.stereotype.Component;
 import org.springframework.util.Assert;