Remove trailing whitespace in source files

find . -type f -name "*.java" -or -name "*.aj" | \
    xargs perl -p -i -e "s/[ \t]*$//g" {} \;

Issue: SPR-10127

spring-context/src/test/java/example/scannable/MessageBean.java

@@ -23,7 +23,7 @@ package example.scannable;
 public class MessageBean {
 
 	private String message;
-	
+
 	public MessageBean() {
 		this.message = "DEFAULT MESSAGE";
 	}
@@ -31,7 +31,7 @@ public class MessageBean {
 	public MessageBean(String message) {
 		this.message = message;
 	}
-	
+
 	public String getMessage() {
 		return this.message;
 	}

spring-context/src/test/java/example/scannable/ServiceInvocationCounter.java

@@ -43,7 +43,7 @@ public class ServiceInvocationCounter {
 		this.threadLocalCount.set(this.useCount);
 		System.out.println("");
 	}
-	
+
 	public int getCount() {
 		return this.useCount;
 	}