Fix AutoConfigurationReport parent location

BeanFactory.getBean() already looks in the parent context
so we have to be careful and not use the parent when locating
the report singleton

Fixes gh-290

spring-boot-autoconfigure/src/main/java/org/springframework/boot/autoconfigure/AutoConfigurationReport.java

@@ -25,7 +25,6 @@ import java.util.SortedMap;
 import java.util.TreeMap;
 
 import org.springframework.beans.factory.BeanFactory;
-import org.springframework.beans.factory.NoSuchBeanDefinitionException;
 import org.springframework.beans.factory.config.ConfigurableListableBeanFactory;
 import org.springframework.boot.autoconfigure.condition.ConditionOutcome;
 import org.springframework.context.annotation.Condition;
@@ -94,10 +93,10 @@ public class AutoConfigurationReport {
 	public static AutoConfigurationReport get(ConfigurableListableBeanFactory beanFactory) {
 		synchronized (beanFactory) {
 			AutoConfigurationReport report;
-			try {
+			if (beanFactory.containsSingleton(BEAN_NAME)) {
 				report = beanFactory.getBean(BEAN_NAME, AutoConfigurationReport.class);
 			}
-			catch (NoSuchBeanDefinitionException ex) {
+			else {
 				report = new AutoConfigurationReport();
 				beanFactory.registerSingleton(BEAN_NAME, report);
 			}

spring-boot-autoconfigure/src/test/java/org/springframework/boot/autoconfigure/AutoConfigurationReportTests.java

@@ -106,6 +106,21 @@ public class AutoConfigurationReportTests {
 								.getParentBeanFactory())));
 	}
 
+	@Test
+	public void parentBottomUp() throws Exception {
+		this.beanFactory = new DefaultListableBeanFactory(); // NB: overrides setup
+		this.beanFactory.setParentBeanFactory(new DefaultListableBeanFactory());
+		AutoConfigurationReport.get((ConfigurableListableBeanFactory) this.beanFactory
+				.getParentBeanFactory());
+		this.report = AutoConfigurationReport.get(this.beanFactory); // NB: overrides
+																		// setup
+
+		assertThat(this.report, not(nullValue()));
+		assertThat(this.report, not(sameInstance(this.report.getParent())));
+		assertThat(this.report.getParent(), not(nullValue()));
+		assertThat(this.report.getParent().getParent(), nullValue());
+	}
+
 	@Test
 	public void recordConditionEvaluations() throws Exception {
 		this.outcome1 = new ConditionOutcome(false, "m1");