Consistent final logger fields

(cherry picked from commit cfa0f6c)

spring-aop/src/main/java/org/springframework/aop/target/dynamic/AbstractRefreshableTargetSource.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.
@@ -39,7 +39,7 @@ import org.springframework.aop.TargetSource;
 public abstract class AbstractRefreshableTargetSource implements TargetSource, Refreshable {
 
 	/** Logger available to subclasses */
-	protected Log logger = LogFactory.getLog(getClass());
+	protected final Log logger = LogFactory.getLog(getClass());
 
 	protected Object targetObject;
 

spring-websocket/src/main/java/org/springframework/web/socket/server/support/OriginHandshakeInterceptor.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.
@@ -42,7 +42,7 @@ import org.springframework.web.util.WebUtils;
  */
 public class OriginHandshakeInterceptor implements HandshakeInterceptor {
 
-	protected Log logger = LogFactory.getLog(getClass());
+	protected final Log logger = LogFactory.getLog(getClass());
 
 	private final Set<String> allowedOrigins = new LinkedHashSet<String>();
 

spring-websocket/src/main/java/org/springframework/web/socket/sockjs/client/AbstractXhrTransport.java

@@ -55,7 +55,7 @@ public abstract class AbstractXhrTransport implements XhrTransport {
 	}
 
 
-	protected Log logger = LogFactory.getLog(getClass());
+	protected final Log logger = LogFactory.getLog(getClass());
 
 	private boolean xhrStreamingDisabled;
 
@@ -73,11 +73,9 @@ public abstract class AbstractXhrTransport implements XhrTransport {
 	 * An {@code XhrTransport} can support both the "xhr_streaming" and "xhr"
 	 * SockJS server transports. From a client perspective there is no
 	 * implementation difference.
-	 *
 	 * <p>Typically an {@code XhrTransport} is used as "XHR streaming" first and
 	 * then, if that fails, as "XHR". In some cases however it may be helpful to
 	 * suppress XHR streaming so that only XHR is attempted.
-	 *
 	 * <p>By default this property is set to {@code false} which means both
 	 * "XHR streaming" and "XHR" apply.
 	 */