Polishing

spring-tx/src/main/java/org/springframework/transaction/jta/JtaTransactionManager.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2017 the original author or authors.
+ * Copyright 2002-2018 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.
@@ -848,7 +848,6 @@ public class JtaTransactionManager extends AbstractPlatformTransactionManager
 			doJtaBegin(txObject, definition);
 		}
 		catch (NotSupportedException | UnsupportedOperationException ex) {
-			// assume nested transaction not supported
 			throw new NestedTransactionNotSupportedException(
 					"JTA implementation does not support nested transactions", ex);
 		}