Consider multiple MBeanExporters when excluding beans from export

Closes gh-10632

spring-boot-autoconfigure/src/main/java/org/springframework/boot/autoconfigure/admin/SpringApplicationAdminJmxAutoConfiguration.java

@@ -16,6 +16,8 @@
 
 package org.springframework.boot.autoconfigure.admin;
 
+import java.util.List;
+
 import javax.management.MalformedObjectNameException;
 
 import org.springframework.beans.factory.ObjectProvider;
@@ -55,13 +57,13 @@ public class SpringApplicationAdminJmxAutoConfiguration {
 	 */
 	private static final String DEFAULT_JMX_NAME = "org.springframework.boot:type=Admin,name=SpringApplication";
 
-	private final MBeanExporter mbeanExporter;
+	private final List<MBeanExporter> mbeanExporters;
 
 	private final Environment environment;
 
 	public SpringApplicationAdminJmxAutoConfiguration(
-			ObjectProvider<MBeanExporter> mbeanExporter, Environment environment) {
-		this.mbeanExporter = mbeanExporter.getIfAvailable();
+			ObjectProvider<List<MBeanExporter>> mbeanExporters, Environment environment) {
+		this.mbeanExporters = mbeanExporters.getIfAvailable();
 		this.environment = environment;
 	}
 
@@ -71,8 +73,10 @@ public class SpringApplicationAdminJmxAutoConfiguration {
 			throws MalformedObjectNameException {
 		String jmxName = this.environment.getProperty(JMX_NAME_PROPERTY,
 				DEFAULT_JMX_NAME);
-		if (this.mbeanExporter != null) { // Make sure to not register that MBean twice
-			this.mbeanExporter.addExcludedBean(jmxName);
+		if (this.mbeanExporters != null) { // Make sure to not register that MBean twice
+			for (MBeanExporter mbeanExporter : this.mbeanExporters) {
+				mbeanExporter.addExcludedBean(jmxName);
+			}
 		}
 		return new SpringApplicationAdminMXBeanRegistrar(jmxName);
 	}

spring-boot-autoconfigure/src/main/java/org/springframework/boot/autoconfigure/jdbc/JndiDataSourceAutoConfiguration.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2012-2016 the original author or authors.
+ * Copyright 2012-2017 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -18,7 +18,6 @@ package org.springframework.boot.autoconfigure.jdbc;
 
 import javax.sql.DataSource;
 
-import org.springframework.beans.factory.NoSuchBeanDefinitionException;
 import org.springframework.boot.autoconfigure.AutoConfigureBefore;
 import org.springframework.boot.autoconfigure.EnableAutoConfiguration;
 import org.springframework.boot.autoconfigure.condition.ConditionalOnClass;
@@ -65,15 +64,12 @@ public class JndiDataSourceAutoConfiguration {
 	}
 
 	private void excludeMBeanIfNecessary(Object candidate, String beanName) {
-		try {
-			MBeanExporter mbeanExporter = this.context.getBean(MBeanExporter.class);
+		for (MBeanExporter mbeanExporter : this.context
+				.getBeansOfType(MBeanExporter.class).values()) {
 			if (JmxUtils.isMBean(candidate.getClass())) {
 				mbeanExporter.addExcludedBean(beanName);
 			}
 		}
-		catch (NoSuchBeanDefinitionException ex) {
-			// No exporter. Exclusion is unnecessary
-		}
 	}
 
 }

spring-boot-autoconfigure/src/test/java/org/springframework/boot/autoconfigure/admin/SpringApplicationAdminJmxAutoConfigurationTests.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2012-2016 the original author or authors.
+ * Copyright 2012-2017 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -42,6 +42,9 @@ import org.springframework.boot.context.embedded.EmbeddedWebApplicationContext;
 import org.springframework.boot.test.util.EnvironmentTestUtils;
 import org.springframework.context.ConfigurableApplicationContext;
 import org.springframework.context.annotation.AnnotationConfigApplicationContext;
+import org.springframework.context.annotation.Bean;
+import org.springframework.context.annotation.Configuration;
+import org.springframework.jmx.export.MBeanExporter;
 
 import static org.assertj.core.api.Assertions.assertThat;
 import static org.junit.Assert.fail;
@@ -186,10 +189,25 @@ public class SpringApplicationAdminJmxAutoConfigurationTests {
 	private void load(String... environment) {
 		AnnotationConfigApplicationContext applicationContext = new AnnotationConfigApplicationContext();
 		EnvironmentTestUtils.addEnvironment(applicationContext, environment);
-		applicationContext.register(JmxAutoConfiguration.class,
+		applicationContext.register(MultipleMBeanExportersConfiguration.class,
 				SpringApplicationAdminJmxAutoConfiguration.class);
 		applicationContext.refresh();
 		this.context = applicationContext;
 	}
 
+	@Configuration
+	static class MultipleMBeanExportersConfiguration {
+
+		@Bean
+		public MBeanExporter firstMBeanExporter() {
+			return new MBeanExporter();
+		}
+
+		@Bean
+		public MBeanExporter secondMBeanExporter() {
+			return new MBeanExporter();
+		}
+
+	}
+
 }

spring-boot-autoconfigure/src/test/java/org/springframework/boot/autoconfigure/jdbc/JndiDataSourceAutoConfigurationTests.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2012-2016 the original author or authors.
+ * Copyright 2012-2017 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -117,6 +117,30 @@ public class JndiDataSourceAutoConfigurationTests {
 		assertThat(excludedBeans).containsExactly("dataSource");
 	}
 
+	@SuppressWarnings("unchecked")
+	@Test
+	public void mbeanDataSourceIsExcludedFromExportByAllExporters()
+			throws IllegalStateException, NamingException {
+		DataSource dataSource = new BasicDataSource();
+		configureJndi("foo", dataSource);
+
+		this.context = new AnnotationConfigApplicationContext();
+		EnvironmentTestUtils.addEnvironment(this.context,
+				"spring.datasource.jndi-name:foo");
+		this.context.register(JndiDataSourceAutoConfiguration.class,
+				MBeanExporterConfiguration.class,
+				AnotherMBeanExporterConfiguration.class);
+		this.context.refresh();
+
+		assertThat(this.context.getBean(DataSource.class)).isEqualTo(dataSource);
+		for (MBeanExporter exporter : this.context.getBeansOfType(MBeanExporter.class)
+				.values()) {
+			Set<String> excludedBeans = (Set<String>) new DirectFieldAccessor(exporter)
+					.getPropertyValue("excludedBeans");
+			assertThat(excludedBeans).containsExactly("dataSource");
+		}
+	}
+
 	@SuppressWarnings("unchecked")
 	@Test
 	public void standardDataSourceIsNotExcludedFromExport()
@@ -152,4 +176,13 @@ public class JndiDataSourceAutoConfigurationTests {
 
 	}
 
+	private static class AnotherMBeanExporterConfiguration {
+
+		@Bean
+		MBeanExporter anotherMbeanExporter() {
+			return new MBeanExporter();
+		}
+
+	}
+
 }