MappingJackson2MessageConverter delegates default encoding to Jackson

Closes gh-22444

spring-jms/src/test/java/org/springframework/jms/support/converter/MappingJackson2MessageConverterTests.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2016 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.
@@ -56,7 +56,7 @@ public class MappingJackson2MessageConverterTests {
 
 
 	@Before
-	public void setUp() throws Exception {
+	public void setup() {
 		sessionMock = mock(Session.class);
 		converter = new MappingJackson2MessageConverter();
 		converter.setEncodingPropertyName("__encoding__");
@@ -263,8 +263,11 @@ public class MappingJackson2MessageConverterTests {
 		return new MyAnotherBean();
 	}
 
+
 	public static class MyBean {
 
+		private String foo;
+
 		public MyBean() {
 		}
 
@@ -272,8 +275,6 @@ public class MappingJackson2MessageConverterTests {
 			this.foo = foo;
 		}
 
-		private String foo;
-
 		public String getFoo() {
 			return foo;
 		}
@@ -290,13 +291,10 @@ public class MappingJackson2MessageConverterTests {
 			if (o == null || getClass() != o.getClass()) {
 				return false;
 			}
-
 			MyBean bean = (MyBean) o;
-
 			if (foo != null ? !foo.equals(bean.foo) : bean.foo != null) {
 				return false;
 			}
-
 			return true;
 		}
 
@@ -306,9 +304,12 @@ public class MappingJackson2MessageConverterTests {
 		}
 	}
 
+
 	private interface Summary {};
+
 	private interface Full extends Summary {};
 
+
 	private static class MyAnotherBean {
 
 		@JsonView(Summary.class)