[BAEL-18774] - extracted versions into properties

spring-cloud/spring-cloud-aws/pom.xml

@@ -50,7 +50,7 @@
             <dependency>
                 <groupId>org.springframework.cloud</groupId>
                 <artifactId>spring-cloud-aws</artifactId>
-                <version>2.0.1.RELEASE</version>
+                <version>${spring-cloud}</version>
                 <type>pom</type>
                 <scope>import</scope>
             </dependency>
@@ -60,6 +60,7 @@
     <properties>
         <start-class>com.baeldung.spring.cloud.aws.SpringCloudAwsApplication</start-class>
         <spring-cloud.version>Dalston.SR4</spring-cloud.version>
+        <spring-cloud>2.0.1.RELEASE</spring-cloud>
     </properties>
     
 </project>

spring-cloud/spring-cloud-contract/spring-cloud-contract-producer/pom.xml

@@ -36,7 +36,7 @@
             <plugin>
                 <groupId>org.springframework.cloud</groupId>
                 <artifactId>spring-cloud-contract-maven-plugin</artifactId>
-                <version>2.1.1.RELEASE</version>
+                <version>${spring-cloud.version}</version>
                 <extensions>true</extensions>
                 <configuration>
                     <baseClassForTests>com.baeldung.spring.cloud.springcloudcontractproducer.BaseTestClass
@@ -45,4 +45,8 @@
             </plugin>
         </plugins>
     </build>
+
+    <properties>
+        <spring-cloud.version>2.1.1.RELEASE</spring-cloud.version>
+    </properties>
 </project>

spring-cloud/spring-cloud-functions/pom.xml

@@ -65,7 +65,7 @@
                     <dependency>
                         <groupId>org.springframework.boot.experimental</groupId>
                         <artifactId>spring-boot-thin-layout</artifactId>
-                        <version>1.0.10.RELEASE</version>
+                        <version>${spring-boot-thin.version}</version>
                     </dependency>
                 </dependencies>
             </plugin>
@@ -88,6 +88,7 @@
         <aws-lambda-events.version>2.0.2</aws-lambda-events.version>
         <aws-lambda-java-core.version>1.1.0</aws-lambda-java-core.version>
         <spring-boot.version>2.0.4.RELEASE</spring-boot.version>
+        <spring-boot-thin.version>1.0.10.RELEASE</spring-boot-thin.version>
     </properties>
 
 </project>

spring-cloud/spring-cloud-kubernetes/kubernetes-guide/travel-agency-service/pom.xml

@@ -24,7 +24,7 @@
             <dependency>
                 <groupId>ch.qos.logback</groupId>
                 <artifactId>logback-classic</artifactId>
-                <version>1.2.3</version>
+                <version>${logback.version}</version>
             </dependency>
         </dependencies>
     </dependencyManagement>
@@ -71,6 +71,7 @@
 
     <properties>
         <spring-cloud-dependencies.version>Finchley.SR2</spring-cloud-dependencies.version>
+        <logback.version>1.2.3</logback.version>
     </properties>
 
 </project>