diff --git a/spring-boot-project/spring-boot-actuator-autoconfigure/src/main/java/org/springframework/boot/actuate/autoconfigure/endpoint/jmx/DefaultEndpointObjectNameFactory.java b/spring-boot-project/spring-boot-actuator-autoconfigure/src/main/java/org/springframework/boot/actuate/autoconfigure/endpoint/jmx/DefaultEndpointObjectNameFactory.java
index 7bfff096a0b..9476b10244a 100644
--- a/spring-boot-project/spring-boot-actuator-autoconfigure/src/main/java/org/springframework/boot/actuate/autoconfigure/endpoint/jmx/DefaultEndpointObjectNameFactory.java
+++ b/spring-boot-project/spring-boot-actuator-autoconfigure/src/main/java/org/springframework/boot/actuate/autoconfigure/endpoint/jmx/DefaultEndpointObjectNameFactory.java
@@ -72,14 +72,14 @@ class DefaultEndpointObjectNameFactory implements EndpointObjectNameFactory {
 			throws MalformedObjectNameException {
 		StringBuilder builder = new StringBuilder(this.properties.getDomain());
 		builder.append(":type=Endpoint");
-		builder.append(",name=" + StringUtils.capitalize(endpoint.getId()));
+		builder.append(",name=").append(StringUtils.capitalize(endpoint.getId()));
 		String baseName = builder.toString();
 		if (this.mBeanServer != null && hasMBean(baseName)) {
-			builder.append(",context=" + this.contextId);
+			builder.append(",context=").append(this.contextId);
 		}
 		if (this.uniqueNames) {
 			String identity = ObjectUtils.getIdentityHexString(endpoint);
-			builder.append(",identity=" + identity);
+			builder.append(",identity=").append(identity);
 		}
 		builder.append(getStaticNames());
 		return ObjectNameManager.getInstance(builder.toString());
@@ -95,8 +95,8 @@ class DefaultEndpointObjectNameFactory implements EndpointObjectNameFactory {
 			return "";
 		}
 		StringBuilder builder = new StringBuilder();
-		this.properties.getStaticNames()
-				.forEach((name, value) -> builder.append("," + name + "=" + value));
+		this.properties.getStaticNames().forEach((name, value) -> builder.append(",")
+				.append(name).append("=").append(value));
 		return builder.toString();
 	}