Fix machine autostart with annotation config

- This seem to relate with machine build from an annotation
  config which is then used as a session scoped bean.
- Fix autostart usage where appropriate and also fix some
  test which were using wrong logic to determine autostart
  usage(tests were wrong).
- Fixes #141

spring-statemachine-core/src/main/java/org/springframework/statemachine/config/configuration/StateMachineConfiguration.java

@@ -149,6 +149,7 @@ public class StateMachineConfiguration<S, E> extends
 			stateMachineFactory.setBeanFactory(getBeanFactory());
 			stateMachineFactory.setContextEventsEnabled(contextEvents);
 			stateMachineFactory.setBeanName(beanName);
+			stateMachineFactory.setHandleAutostartup(stateMachineConfigurationConfig.isAutoStart());
 			StateMachine<S, E> stateMachine = stateMachineFactory.getStateMachine();
 			this.lifecycle = (SmartLifecycle) stateMachine;
 			this.disposableBean = (DisposableBean) stateMachine;

spring-statemachine-core/src/test/java/org/springframework/statemachine/config/SessionScopedAnnotationTests.java

@@ -70,6 +70,17 @@ public class SessionScopedAnnotationTests {
 		mvc = MockMvcBuilders.webAppContextSetup(context).build();
 	}
 
+	@Test
+	public void testAutoStart() throws Exception {
+		MockHttpSession session1 = new MockHttpSession();
+		mvc.
+			perform(get("/ping").session(session1)).
+			andExpect(status().isOk());
+		Object machine = session1.getAttribute("scopedTarget.stateMachine");
+		assertThat(machine, notNullValue());
+		assertThat(TestUtils.callMethod("isRunning", machine), is(true));
+	}
+
 	@Test
 	public void testScopedMachines() throws Exception {
 		MockHttpSession session1 = new MockHttpSession();
@@ -171,6 +182,13 @@ public class SessionScopedAnnotationTests {
 		@Autowired
 		StateMachine<String, String> stateMachine;
 
+		@RequestMapping(path="/ping", method=RequestMethod.GET)
+		public HttpEntity<Void> dummyPing() {
+			// dummy ping to instantiate session and then create machine
+			stateMachine.getState();
+			return new ResponseEntity<Void>(HttpStatus.OK);
+		}
+
 		@RequestMapping(path="/state", method=RequestMethod.POST)
 		public HttpEntity<Void> setState(@RequestParam("event") String event) {
 			stateMachine.sendEvent(event);
@@ -180,7 +198,6 @@ public class SessionScopedAnnotationTests {
 		@RequestMapping(path="/state", method=RequestMethod.GET)
 		@ResponseBody
 		public String getState() {
-			stateMachine.start();
 			return stateMachine.getState().getId();
 		}
 

spring-statemachine-core/src/test/java/org/springframework/statemachine/config/SessionScopedManualTests.java

@@ -114,6 +114,17 @@ public class SessionScopedManualTests {
 		assertThat(TestUtils.readField("running", machine), is(false));
 	}
 
+	@Test
+	public void testAutoStart() throws Exception {
+		MockHttpSession session1 = new MockHttpSession();
+		mvc.
+			perform(get("/ping").session(session1)).
+			andExpect(status().isOk());
+		Object machine = session1.getAttribute("scopedTarget.stateMachine");
+		assertThat(machine, notNullValue());
+		assertThat(TestUtils.callMethod("isRunning", machine), is(true));
+	}
+
 	@Configuration
 	static class Config {
 
@@ -150,6 +161,13 @@ public class SessionScopedManualTests {
 		@Autowired
 		StateMachine<String, String> stateMachine;
 
+		@RequestMapping(path="/ping", method=RequestMethod.GET)
+		public HttpEntity<Void> dummyPing() {
+			// dummy ping to instantiate session and then create machine
+			stateMachine.getState();
+			return new ResponseEntity<Void>(HttpStatus.OK);
+		}
+
 		@RequestMapping(path="/state", method=RequestMethod.POST)
 		public HttpEntity<Void> setState(@RequestParam("event") String event) {
 			stateMachine.sendEvent(event);