Make CaffeineWarnLogger message more specific. Refactor. Fixes gh-1050.

spring-cloud-commons/src/main/java/org/springframework/cloud/configuration/CompatibilityNotMetException.java

@@ -31,7 +31,8 @@ class CompatibilityNotMetException extends RuntimeException {
 	final List<VerificationResult> results;
 
 	CompatibilityNotMetException(List<VerificationResult> results) {
-		super("Spring Cloud/ Spring Boot version compatibility checks have failed: " + Arrays.toString(results.toArray()));
+		super("Spring Cloud/ Spring Boot version compatibility checks have failed: "
+				+ Arrays.toString(results.toArray()));
 		this.results = results;
 	}
 

spring-cloud-loadbalancer/src/main/java/org/springframework/cloud/loadbalancer/config/LoadBalancerCacheAutoConfiguration.java

@@ -80,6 +80,7 @@ public class LoadBalancerCacheAutoConfiguration {
 		void logWarning() {
 			if (LOG.isWarnEnabled()) {
 				LOG.warn("Spring Cloud LoadBalancer is currently working with the default cache. "
+						+ "While this cache implementation is useful for development and tests, it's recommended to use Caffeine cache in production."
 						+ "You can switch to using Caffeine cache, by adding it and org.springframework.cache.caffeine.CaffeineCacheManager to the classpath.");
 			}
 		}