Fix [serial] compiler warnings

Fix serialization warnings by applying @SuppressWarnings("serial")
when appropriate.

In certain cases and for unknown reasons, a correctly-placed
@SuppressWarnings("serial") annotation will fix the warning at the
javac level (i.e. the Gradle command-line), but will produce an
"unnecessary @SuppressWarnings" warning within Eclipse. In these
cases, a private static final serialVersionUID field has been added
with the default value of 1L.

spring-jms/src/test/java/org/springframework/beans/Colour.java

@@ -21,6 +21,7 @@ import org.springframework.core.enums.ShortCodedLabeledEnum;
 /**
  * @author Rob Harrop
  */
+@SuppressWarnings("serial")
 public class Colour extends ShortCodedLabeledEnum {
 
 	public static final Colour RED = new Colour(0, "RED");
@@ -32,4 +33,4 @@ public class Colour extends ShortCodedLabeledEnum {
 		super(code, label);
 	}
 
-}
+}

spring-jms/src/test/java/org/springframework/jms/listener/adapter/MessageListenerAdapterTests.java

@@ -670,6 +670,7 @@ public class MessageListenerAdapterTests {
 	}
 
 
+	@SuppressWarnings("serial")
 	private static class SerializableObject implements Serializable {
 	}
 

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

@@ -74,6 +74,7 @@ public class MappingJackson2MessageConverterTests {
 				"bar");
 
 		final byte[] bytes = "{\"foo\":\"bar\"}".getBytes();
+		@SuppressWarnings("serial")
 		Capture<byte[]> captured = new Capture<byte[]>() {
 			@Override
 			public void setValue(byte[] value) {

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

@@ -67,6 +67,7 @@ public class MappingJacksonMessageConverterTests {
 	}
 
 	@Test
+	@SuppressWarnings("serial")
 	public void fromBytesMessage() throws Exception {
 		BytesMessage bytesMessageMock = createMock(BytesMessage.class);
 		Map<String, String> unmarshalled = Collections.singletonMap("foo",

spring-jms/src/test/java/org/springframework/transaction/CallCountingTransactionManager.java

@@ -23,6 +23,7 @@ import org.springframework.transaction.support.DefaultTransactionStatus;
  * @author Rod Johnson
  * @author Juergen Hoeller
  */
+@SuppressWarnings("serial")
 public class CallCountingTransactionManager extends AbstractPlatformTransactionManager {
 
 	public TransactionDefinition lastDefinition;