Clean up the JSON rendering of ConsumerProperties and ProducerProperties (for actuator endpoints).

spring-cloud-stream/src/main/java/org/springframework/cloud/stream/binder/ConsumerProperties.java

@@ -16,11 +16,16 @@
 
 package org.springframework.cloud.stream.binder;
 
+import static com.fasterxml.jackson.annotation.JsonInclude.Include.NON_DEFAULT;
+
+import com.fasterxml.jackson.annotation.JsonInclude;
+
 /**
  * Common consumer properties.
  *
  * @author Marius Bogoevici
  */
+@JsonInclude(NON_DEFAULT)
 public class ConsumerProperties {
 
 	private int concurrency = 1;

spring-cloud-stream/src/main/java/org/springframework/cloud/stream/binder/ProducerProperties.java

@@ -16,15 +16,20 @@
 
 package org.springframework.cloud.stream.binder;
 
-import org.springframework.expression.Expression;
 
+import com.fasterxml.jackson.annotation.JsonInclude;
+import com.fasterxml.jackson.annotation.JsonInclude.Include;
 import com.fasterxml.jackson.databind.annotation.JsonSerialize;
 
+import org.springframework.expression.Expression;
+
 /**
  * Common producer properties.
  *
  * @author Marius Bogoevici
+ * @author Ilayaperumal Gopinathan
  */
+@JsonInclude(Include.NON_DEFAULT)
 public class ProducerProperties {
 
 	@JsonSerialize(using = ExpressionSerializer.class)

spring-cloud-stream/src/main/java/org/springframework/cloud/stream/binding/DynamicDestinationsBindable.java

@@ -32,7 +32,7 @@ import org.springframework.cloud.stream.binder.Binding;
 public final class DynamicDestinationsBindable extends BindableAdapter {
 
 	/**
-	 * Map containing channel names and their bindings.
+	 * Map containing dynamic channel names and their bindings.
 	 */
 	private Map<String, Binding> outputBindings = new HashMap<>();