Polishing

spring-tx/src/main/java/org/springframework/transaction/interceptor/MethodMapTransactionAttributeSource.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2018 the original author or authors.
+ * Copyright 2002-2019 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.
@@ -153,7 +153,7 @@ public class MethodMapTransactionAttributeSource
 		}
 		if (matchingMethods.isEmpty()) {
 			throw new IllegalArgumentException(
-					"Couldn't find method '" + mappedName + "' on class [" + clazz.getName() + "]");
+					"Could not find method '" + mappedName + "' on class [" + clazz.getName() + "]");
 		}
 
 		// Register all matching methods