INT-3811: Support Negative Matches on Header Map

JIRA: https://jira.spring.io/browse/INT-3811

Polishing - PR Comments

spring-integration-ws/src/main/java/org/springframework/integration/ws/DefaultSoapHeaderMapper.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.
@@ -36,12 +36,12 @@ import org.springframework.xml.namespace.QNameUtils;
 /**
  * A {@link HeaderMapper} implementation for mapping to and from a SoapHeader.
  * The {@link #setRequestHeaderNames(String[])} and {@link #setReplyHeaderNames(String[])}
- * accept exact name Strings or simple patterns (e.g. "start*", "*end", or "*").  
+ * accept exact name Strings or simple patterns (e.g. "start*", "*end", or "*").
  * By default all inbound headers will be accepted, but any outbound header that should
  * be mapped must be configured explicitly. Note that the outbound mapping only writes
  * String header values into attributes on the SoapHeader. For anything more advanced,
  * one should implement the HeaderMapper interface directly.
- * 
+ *
  * @author Mark Fisher
  * @author Oleg Zhurakousky
  * @author Stephane Nicoll
@@ -49,7 +49,7 @@ import org.springframework.xml.namespace.QNameUtils;
  * @since 2.0
  */
 public class DefaultSoapHeaderMapper extends AbstractHeaderMapper<SoapMessage> implements SoapHeaderMapper {
-	
+
 	private static final List<String> STANDARD_HEADER_NAMES = new ArrayList<String>();
 
 	static {
@@ -67,8 +67,10 @@ public class DefaultSoapHeaderMapper extends AbstractHeaderMapper<SoapMessage> i
 			Map<String, Object> headers = new HashMap<String, Object>(1);
 			headers.put(WebServiceHeaders.SOAP_ACTION, soapAction);
 			return headers;
-		} else
+		}
+		else {
 			return Collections.emptyMap();
+		}
 	}
 
 	@Override