Upgrade to MongoDB 3

This commit upgrades to MongoDB 3. Dependency management has been added
for the new and preferred mongodb-driver artifact. The starter has
been updated to use this new artifact rather than monogo-java-driver.
Dependency management for mongo-java-driver has been retained to avoid
causing problems for people who have declared the dependency explicitly.
The auto-configuration for Embedded Mongo has also been updated to
use 3.2.2 by default.

Closes gh-3011

spring-boot-autoconfigure/src/main/java/org/springframework/boot/autoconfigure/mongo/embedded/EmbeddedMongoProperties.java

@@ -37,7 +37,7 @@ public class EmbeddedMongoProperties {
 	/**
 	 * Version of Mongo to use.
 	 */
-	private String version = "2.6.10";
+	private String version = "3.2.2";
 
 	private final Storage storage = new Storage();
 

spring-boot-autoconfigure/src/test/java/org/springframework/boot/autoconfigure/mongo/embedded/EmbeddedMongoAutoConfigurationTests.java

@@ -61,7 +61,7 @@ public class EmbeddedMongoAutoConfigurationTests {
 
 	@Test
 	public void defaultVersion() {
-		assertVersionConfiguration(null, "2.6.10");
+		assertVersionConfiguration(null, "3.2.2");
 	}
 
 	@Test

spring-boot-dependencies/pom.xml

@@ -125,7 +125,7 @@
 		<lombok.version>1.16.8</lombok.version>
 		<mariadb.version>1.4.4</mariadb.version>
 		<mockito.version>1.10.19</mockito.version>
-		<mongodb.version>2.14.2</mongodb.version>
+		<mongodb.version>3.2.2</mongodb.version>
 		<mysql.version>5.1.39</mysql.version>
 		<narayana.version>5.3.2.Final</narayana.version>
 		<nekohtml.version>1.9.22</nekohtml.version>
@@ -1893,6 +1893,11 @@
 				<artifactId>mockito-core</artifactId>
 				<version>${mockito.version}</version>
 			</dependency>
+			<dependency>
+				<groupId>org.mongodb</groupId>
+				<artifactId>mongodb-driver</artifactId>
+				<version>${mongodb.version}</version>
+			</dependency>
 			<dependency>
 				<groupId>org.mongodb</groupId>
 				<artifactId>mongo-java-driver</artifactId>

spring-boot-starters/spring-boot-starter-data-mongodb/pom.xml

@@ -25,7 +25,7 @@
 		</dependency>
 		<dependency>
 			<groupId>org.mongodb</groupId>
-			<artifactId>mongo-java-driver</artifactId>
+			<artifactId>mongodb-driver</artifactId>
 		</dependency>
 		<dependency>
 			<groupId>org.springframework.data</groupId>