fix issue 870 (all the details are there in the comments) (#872)

* fix

* trigger build

* trigger build

spring-cloud-kubernetes-commons/pom.xml

@@ -51,6 +51,7 @@
 		<dependency>
 			<groupId>org.springframework.boot</groupId>
 			<artifactId>spring-boot-starter-logging</artifactId>
+			<optional>true</optional>
 		</dependency>
 		<dependency>
 			<groupId>org.springframework.boot</groupId>

spring-cloud-kubernetes-fabric8-autoconfig/pom.xml

@@ -66,6 +66,13 @@
 		<dependency>
 			<groupId>org.springframework.boot</groupId>
 			<artifactId>spring-boot-starter-json</artifactId>
+			<exclusions>
+				<!-- exclusion is safe since we already declare this one, as optional=true -->
+				<exclusion>
+					<groupId>org.springframework.boot</groupId>
+					<artifactId>spring-boot-starter-logging</artifactId>
+				</exclusion>
+			</exclusions>
 		</dependency>
 
 		<dependency>