Get rid of build warnings WARNING about problems found when building the effective model (#953)

naked-objects/pom.xml

@@ -17,23 +17,14 @@
 		<groupId>com.iluwatar</groupId>
 		<version>1.22.0-SNAPSHOT</version>
 	</parent>
-
 	<artifactId>naked-objects</artifactId>
-
 	<packaging>pom</packaging>
-
-	<prerequisites>
-		<maven>3.0.4</maven>
-	</prerequisites>
-
 	<properties>
 		<isis.version>1.9.0</isis.version>
-
 		<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
 		<project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
 		<assertj-core.version>2.0.0</assertj-core.version>
 	</properties>
-
 	<repositories>
 		<repository>
 			<id>apache.snapshots</id>

pom.xml

@@ -370,6 +370,11 @@
                         <argLine>-Xmx1024M ${argLine}</argLine>
                     </configuration>
                 </plugin>
+                <plugin>
+                    <groupId>org.springframework.boot</groupId>
+                    <artifactId>spring-boot-maven-plugin</artifactId>
+                    <version>${spring-boot.version}</version>
+                </plugin>
             </plugins>
         </pluginManagement>