Organize imports with new settings

See gh-4234

spring-boot-samples/spring-boot-sample-metrics-redis/src/test/java/sample/metrics/redis/SampleRedisExportApplicationTests.java

@@ -18,6 +18,7 @@ package sample.metrics.redis;
 
 import org.junit.Test;
 import org.junit.runner.RunWith;
+
 import org.springframework.boot.test.IntegrationTest;
 import org.springframework.boot.test.SpringApplicationConfiguration;
 import org.springframework.test.annotation.DirtiesContext;