Properly serialise output of endpoint command

spring-boot-starters/spring-boot-starter-shell/src/main/resources/commands/crash/endpoint.groovy

 package commands
 
-import org.springframework.boot.actuate.endpoint.Endpoint;
+import org.springframework.boot.actuate.endpoint.Endpoint
+import org.springframework.boot.actuate.endpoint.jmx.*
 
 @Usage("Invoke actuator endpoints")
 class endpoint {
@@ -8,7 +9,7 @@ class endpoint {
 	@Usage("List all available and enabled actuator endpoints")
 	@Command
 	def list(InvocationContext context) {
-		
+
 		context.attributes['spring.beanfactory'].getBeansOfType(Endpoint.class).each { name, endpoint ->
 			if (endpoint.isEnabled()) {
 				out.println name
@@ -20,14 +21,22 @@ class endpoint {
 	@Usage("Invoke provided actuator endpoint")
 	@Command
 	def invoke(InvocationContext context, @Usage("The object name pattern") @Required @Argument String name) {
-		
+
 		context.attributes['spring.beanfactory'].getBeansOfType(Endpoint.class).each { n, endpoint ->
 			if (n.equals(name) && endpoint.isEnabled()) {
-				out.println endpoint.invoke()
+
+				EndpointMBean mbean = context.attributes['spring.beanfactory'].getBean(EndpointMBeanExporter.class).getEndpointMBean(name, endpoint)
+				if (mbean instanceof DataEndpointMBean) {
+					out.println mbean.getData()
+				}
+				else {
+					out.println mbean.invoke()
+				}
+
 			}
 		}
 		""
 	}
-	
 
-}
\ No newline at end of file
+
+}