diff --git a/spring-context/src/main/java/org/springframework/context/support/DefaultMessageSourceResolvable.java b/spring-context/src/main/java/org/springframework/context/support/DefaultMessageSourceResolvable.java
index e688b5009dc..76db0de3deb 100644
--- a/spring-context/src/main/java/org/springframework/context/support/DefaultMessageSourceResolvable.java
+++ b/spring-context/src/main/java/org/springframework/context/support/DefaultMessageSourceResolvable.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2012 the original author or authors.
+ * Copyright 2002-2016 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -127,7 +127,7 @@ public class DefaultMessageSourceResolvable implements MessageSourceResolvable,
 	protected final String resolvableToString() {
 		StringBuilder result = new StringBuilder();
 		result.append("codes [").append(StringUtils.arrayToDelimitedString(this.codes, ","));
-		result.append("]; arguments [" + StringUtils.arrayToDelimitedString(this.arguments, ","));
+		result.append("]; arguments [").append(StringUtils.arrayToDelimitedString(this.arguments, ","));
 		result.append("]; default message [").append(this.defaultMessage).append(']');
 		return result.toString();
 	}
diff --git a/spring-web/src/main/java/org/springframework/http/client/OkHttpClientHttpResponse.java b/spring-web/src/main/java/org/springframework/http/client/OkHttpClientHttpResponse.java
index d5191441dfd..392a2d7d9b1 100644
--- a/spring-web/src/main/java/org/springframework/http/client/OkHttpClientHttpResponse.java
+++ b/spring-web/src/main/java/org/springframework/http/client/OkHttpClientHttpResponse.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2015 the original author or authors.
+ * Copyright 2002-2016 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -39,7 +39,7 @@ class OkHttpClientHttpResponse extends AbstractClientHttpResponse {
 
 
 	public OkHttpClientHttpResponse(Response response) {
-		Assert.notNull(response, "'response' must not be null");
+		Assert.notNull(response, "Response must not be null");
 		this.response = response;
 	}