Revert Sonar to 2.6.2

build.gradle

@@ -11,7 +11,7 @@ buildscript {
 }
 
 plugins {
-	id 'org.sonarqube' version '2.7'
+	id 'org.sonarqube' version '2.6.2'
 	id 'org.asciidoctor.convert' version '1.5.10'
 	id 'org.ajoberstar.grgit' version '3.0.0'
 }
@@ -683,7 +683,7 @@ project('spring-integration-webflux') {
 		}
 		compile "org.springframework:spring-webflux:$springVersion"
 		compile ("io.projectreactor.netty:reactor-netty:$reactorNettyVersion" , optional)
-		
+
 		testCompile "org.hamcrest:hamcrest-core:$hamcrestVersion"
 		testCompile "org.springframework:spring-webmvc:$springVersion"
 		testCompile ("org.springframework.security:spring-security-config:$springSecurityVersion") {