DATAMONGO-2454 - Release version 3.0 M2 (Neumann).

Previously we falsely converted the sort value (1/-1) into the id types target value when a Field annotation had been present.

Original pull request: #822.

.travis.yml

@@ -0,0 +1,38 @@
+language: java
+
+jdk:
+  - oraclejdk8
+
+before_install:
+  - mkdir -p downloads
+  - mkdir -p var/db var/log
+  - if [[ ! -d downloads/mongodb-linux-x86_64-ubuntu1604-${MONGO_VERSION} ]] ; then cd downloads && wget https://fastdl.mongodb.org/linux/mongodb-linux-x86_64-ubuntu1604-${MONGO_VERSION}.tgz && tar xzf mongodb-linux-x86_64-ubuntu1604-${MONGO_VERSION}.tgz && cd ..; fi
+  - downloads/mongodb-linux-x86_64-ubuntu1604-${MONGO_VERSION}/bin/mongod --version
+  - downloads/mongodb-linux-x86_64-ubuntu1604-${MONGO_VERSION}/bin/mongod --dbpath var/db --replSet rs0 --fork --logpath var/log/mongod.log
+  - sleep 10
+  - |-
+    downloads/mongodb-linux-x86_64-ubuntu1604-${MONGO_VERSION}/bin/mongo --eval "rs.initiate({_id: 'rs0', members:[{_id: 0, host: '127.0.0.1:27017'}]});"
+    sleep 15
+
+env:
+  matrix:
+    - MONGO_VERSION=4.1.10
+    - MONGO_VERSION=4.0.4
+    - MONGO_VERSION=3.6.12
+    - MONGO_VERSION=3.4.20
+  global:
+    - PROFILE=ci
+
+addons:
+  apt:
+    packages:
+      - oracle-java8-installer
+
+sudo: false
+
+cache:
+  directories:
+    - $HOME/.m2
+    - downloads
+
+script: "mvn clean dependency:list test -P${PROFILE} -Dsort"

Jenkinsfile

@@ -3,7 +3,7 @@ pipeline {
 
 	triggers {
 		pollSCM 'H/10 * * * *'
-		upstream(upstreamProjects: "spring-data-commons/2.2.x", threshold: hudson.model.Result.SUCCESS)
+		upstream(upstreamProjects: "spring-data-commons/master", threshold: hudson.model.Result.SUCCESS)
 	}
 
 	options {
@@ -68,7 +68,7 @@ pipeline {
 		stage("test: baseline") {
 			when {
 				anyOf {
-					branch '2.2.x'
+					branch 'master'
 					not { triggeredBy 'UpstreamCause' }
 				}
 			}
@@ -80,9 +80,6 @@ pipeline {
 				}
 			}
 			options { timeout(time: 30, unit: 'MINUTES') }
-			environment {
-				ARTIFACTORY = credentials('02bd1690-b54f-4c9f-819d-a77cb7a9822c')
-			}
 			steps {
 				sh 'rm -rf ?'
 				sh 'mkdir -p /tmp/mongodb/db /tmp/mongodb/log'
@@ -90,14 +87,14 @@ pipeline {
 				sh 'sleep 10'
 				sh 'mongo --eval "rs.initiate({_id: \'rs0\', members:[{_id: 0, host: \'127.0.0.1:27017\'}]});"'
 				sh 'sleep 15'
-				sh 'MAVEN_OPTS="-Duser.name=jenkins -Duser.home=/tmp/jenkins-home" ./mvnw -s settings.xml clean dependency:list test -Dsort -U -B'
+				sh 'MAVEN_OPTS="-Duser.name=jenkins -Duser.home=/tmp/jenkins-home" ./mvnw clean dependency:list test -Dsort -U -B'
 			}
 		}
 
 		stage("Test other configurations") {
 			when {
 				anyOf {
-					branch '2.2.x'
+					branch 'master'
 					not { triggeredBy 'UpstreamCause' }
 				}
 			}
@@ -111,9 +108,6 @@ pipeline {
 						}
 					}
 					options { timeout(time: 30, unit: 'MINUTES') }
-					environment {
-						ARTIFACTORY = credentials('02bd1690-b54f-4c9f-819d-a77cb7a9822c')
-					}
 					steps {
 						sh 'rm -rf ?'
 						sh 'mkdir -p /tmp/mongodb/db /tmp/mongodb/log'
@@ -121,7 +115,7 @@ pipeline {
 						sh 'sleep 10'
 						sh 'mongo --eval "rs.initiate({_id: \'rs0\', members:[{_id: 0, host: \'127.0.0.1:27017\'}]});"'
 						sh 'sleep 15'
-						sh 'MAVEN_OPTS="-Duser.name=jenkins -Duser.home=/tmp/jenkins-home" ./mvnw -s settings.xml clean dependency:list test -Dsort -U -B'
+						sh 'MAVEN_OPTS="-Duser.name=jenkins -Duser.home=/tmp/jenkins-home" ./mvnw clean dependency:list test -Dsort -U -B'
 					}
 				}
 				stage("test: mongodb 4.1") {
@@ -133,9 +127,6 @@ pipeline {
 						}
 					}
 					options { timeout(time: 30, unit: 'MINUTES') }
-					environment {
-						ARTIFACTORY = credentials('02bd1690-b54f-4c9f-819d-a77cb7a9822c')
-					}
 					steps {
 						sh 'rm -rf ?'
 						sh 'mkdir -p /tmp/mongodb/db /tmp/mongodb/log'
@@ -143,7 +134,7 @@ pipeline {
 						sh 'sleep 10'
 						sh 'mongo --eval "rs.initiate({_id: \'rs0\', members:[{_id: 0, host: \'127.0.0.1:27017\'}]});"'
 						sh 'sleep 15'
-						sh 'MAVEN_OPTS="-Duser.name=jenkins -Duser.home=/tmp/jenkins-home" ./mvnw -s settings.xml clean dependency:list test -Dsort -U -B'
+						sh 'MAVEN_OPTS="-Duser.name=jenkins -Duser.home=/tmp/jenkins-home" ./mvnw clean dependency:list test -Dsort -U -B'
 					}
 				}
 			}
@@ -152,7 +143,7 @@ pipeline {
 		stage('Release to artifactory') {
 			when {
 				anyOf {
-					branch '2.2.x'
+					branch 'master'
 					not { triggeredBy 'UpstreamCause' }
 				}
 			}
@@ -171,7 +162,7 @@ pipeline {
 
 			steps {
 				sh 'rm -rf ?'
-				sh 'MAVEN_OPTS="-Duser.name=jenkins -Duser.home=/tmp/jenkins-home" ./mvnw -s settings.xml -Pci,artifactory ' +
+				sh 'MAVEN_OPTS="-Duser.name=jenkins -Duser.home=/tmp/jenkins-home" ./mvnw -Pci,artifactory ' +
 						'-Dartifactory.server=https://repo.spring.io ' +
 						"-Dartifactory.username=${ARTIFACTORY_USR} " +
 						"-Dartifactory.password=${ARTIFACTORY_PSW} " +
@@ -184,7 +175,7 @@ pipeline {
 
 		stage('Publish documentation') {
 			when {
-				branch '2.2.x'
+				branch 'master'
 			}
 			agent {
 				docker {
@@ -200,7 +191,7 @@ pipeline {
 			}
 
 			steps {
-				sh 'MAVEN_OPTS="-Duser.name=jenkins -Duser.home=/tmp/jenkins-home" ./mvnw -s settings.xml -Pci,distribute ' +
+				sh 'MAVEN_OPTS="-Duser.name=jenkins -Duser.home=/tmp/jenkins-home" ./mvnw -Pci,distribute ' +
 						'-Dartifactory.server=https://repo.spring.io ' +
 						"-Dartifactory.username=${ARTIFACTORY_USR} " +
 						"-Dartifactory.password=${ARTIFACTORY_PSW} " +

LICENSE.txt

@@ -1,202 +0,0 @@
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README.adoc

@@ -105,17 +105,18 @@ If you are just starting out with Spring, try one of the https://spring.io/guide
 * If you are upgrading, check out the https://docs.spring.io/spring-data/mongodb/docs/current/changelog.txt[changelog] for "`new and noteworthy`" features.
 * Ask a question - we monitor https://stackoverflow.com[stackoverflow.com] for questions tagged with https://stackoverflow.com/tags/spring-data[`spring-data-mongodb`].
 You can also chat with the community on https://gitter.im/spring-projects/spring-data[Gitter].
-* Report bugs with Spring Data MongoDB at https://github.com/spring-projects/spring-data-mongodb/issues[github.com/spring-projects/spring-data-mongodb/issues].
+* Report bugs with Spring Data MongoDB at https://jira.spring.io/browse/DATAMONGO[jira.spring.io/browse/DATAMONGO].
 
 == Reporting Issues
 
-Spring Data uses Github as issue tracking system to record bugs and feature requests.
+Spring Data uses JIRA as issue tracking system to record bugs and feature requests. If you want to raise an issue, please follow the recommendations below:
-If you want to raise an issue, please follow the recommendations below:
 
-* Before you log a bug, please search the https://github.com/spring-projects/spring-data-mongodb/issues[issue tracker] to see if someone has already reported the problem.
+* Before you log a bug, please search the
-* If the issue does not already exist, https://github.com/spring-projects/spring-data-mongodb/issues/new[create a new issue].
+https://jira.spring.io/browse/DATAMONGO[issue tracker] to see if someone has already reported the problem.
-* Please provide as much information as possible with the issue report, we like to know the version of Spring Data that you are using, the JVM version, Stacktrace, etc.
+* If the issue doesn’t already exist, https://jira.spring.io/browse/DATAMONGO[create a new issue].
-* If you need to paste code, or include a stack trace use https://guides.github.com/features/mastering-markdown/[Markdown] code fences +++```+++.
+* Please provide as much information as possible with the issue report, we like to know the version of Spring Data that you are using and JVM version.
+* If you need to paste code, or include a stack trace use JIRA `{code}…{code}` escapes before and after your text.
+* If possible try to create a test-case or project that replicates the issue. Attach a link to your code or a compressed file containing your code.
 
 == Building from Source
 

pom.xml

@@ -5,7 +5,7 @@
 
 	<groupId>org.springframework.data</groupId>
 	<artifactId>spring-data-mongodb-parent</artifactId>
-	<version>2.2.14.BUILD-SNAPSHOT</version>
+	<version>3.0.0.M2</version>
 	<packaging>pom</packaging>
 
 	<name>Spring Data MongoDB</name>
@@ -15,7 +15,7 @@
 	<parent>
 		<groupId>org.springframework.data.build</groupId>
 		<artifactId>spring-data-parent</artifactId>
-		<version>2.2.14.BUILD-SNAPSHOT</version>
+		<version>2.3.0.M2</version>
 	</parent>
 
 	<modules>
@@ -26,9 +26,9 @@
 	<properties>
 		<project.type>multi</project.type>
 		<dist.id>spring-data-mongodb</dist.id>
-		<springdata.commons>2.2.14.BUILD-SNAPSHOT</springdata.commons>
+		<springdata.commons>2.3.0.M2</springdata.commons>
-		<mongo>3.11.2</mongo>
+		<mongo>3.12.0</mongo>
-		<mongo.reactivestreams>1.12.0</mongo.reactivestreams>
+		<mongo.reactivestreams>1.13.0</mongo.reactivestreams>
 		<jmh.version>1.19</jmh.version>
 	</properties>
 
@@ -134,8 +134,8 @@
 
 	<repositories>
 		<repository>
-			<id>spring-libs-snapshot</id>
+			<id>spring-libs-milestone</id>
-			<url>https://repo.spring.io/libs-snapshot</url>
+			<url>https://repo.spring.io/libs-milestone</url>
 		</repository>
 	</repositories>
 
@@ -148,6 +148,7 @@
 			<id>spring-libs-milestone</id>
 			<url>https://repo.spring.io/libs-milestone</url>
 		</pluginRepository>
+
 	</pluginRepositories>
 
 </project>

settings.xml

@@ -1,29 +0,0 @@
-<settings xmlns="http://maven.apache.org/SETTINGS/1.0.0"
-          xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-          xsi:schemaLocation="http://maven.apache.org/SETTINGS/1.0.0
-                      https://maven.apache.org/xsd/settings-1.0.0.xsd">
-
-	<servers>
-		<server>
-			<id>spring-plugins-release</id>
-			<username>${env.ARTIFACTORY_USR}</username>
-			<password>${env.ARTIFACTORY_PSW}</password>
-		</server>
-		<server>
-			<id>spring-libs-snapshot</id>
-			<username>${env.ARTIFACTORY_USR}</username>
-			<password>${env.ARTIFACTORY_PSW}</password>
-		</server>
-		<server>
-			<id>spring-libs-milestone</id>
-			<username>${env.ARTIFACTORY_USR}</username>
-			<password>${env.ARTIFACTORY_PSW}</password>
-		</server>
-		<server>
-			<id>spring-libs-release</id>
-			<username>${env.ARTIFACTORY_USR}</username>
-			<password>${env.ARTIFACTORY_PSW}</password>
-		</server>
-	</servers>
-
-</settings>

spring-data-mongodb-benchmarks/pom.xml

@@ -7,7 +7,7 @@
 	<parent>
 		<groupId>org.springframework.data</groupId>
 		<artifactId>spring-data-mongodb-parent</artifactId>
-		<version>2.2.14.BUILD-SNAPSHOT</version>
+		<version>3.0.0.M2</version>
 		<relativePath>../pom.xml</relativePath>
 	</parent>
 

spring-data-mongodb-benchmarks/src/main/java/org/springframework/data/mongodb/core/ProjectionsBenchmark.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2017-2021 the original author or authors.
+ * Copyright 2017-2020 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.

spring-data-mongodb-benchmarks/src/main/java/org/springframework/data/mongodb/core/convert/DbRefMappingBenchmark.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2017-2021 the original author or authors.
+ * Copyright 2017-2020 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.

spring-data-mongodb-benchmarks/src/main/java/org/springframework/data/mongodb/core/convert/MappingMongoConverterBenchmark.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2017-2021 the original author or authors.
+ * Copyright 2017-2020 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.

spring-data-mongodb-benchmarks/src/main/java/org/springframework/data/mongodb/microbenchmark/AbstractMicrobenchmark.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2017-2021 the original author or authors.
+ * Copyright 2017-2020 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.

spring-data-mongodb-benchmarks/src/main/java/org/springframework/data/mongodb/microbenchmark/HttpResultsWriter.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2017-2021 the original author or authors.
+ * Copyright 2017-2020 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.

spring-data-mongodb-benchmarks/src/main/java/org/springframework/data/mongodb/microbenchmark/MongoResultsWriter.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2017-2021 the original author or authors.
+ * Copyright 2017-2020 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.

spring-data-mongodb-benchmarks/src/main/java/org/springframework/data/mongodb/microbenchmark/ResultsWriter.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2017-2021 the original author or authors.
+ * Copyright 2017-2020 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.

spring-data-mongodb-distribution/pom.xml

@@ -14,7 +14,7 @@
 	<parent>
 		<groupId>org.springframework.data</groupId>
 		<artifactId>spring-data-mongodb-parent</artifactId>
-		<version>2.2.14.BUILD-SNAPSHOT</version>
+		<version>3.0.0.M2</version>
 		<relativePath>../pom.xml</relativePath>
 	</parent>
 

spring-data-mongodb/pom.xml

@@ -11,7 +11,7 @@
 	<parent>
 		<groupId>org.springframework.data</groupId>
 		<artifactId>spring-data-mongodb-parent</artifactId>
-		<version>2.2.14.BUILD-SNAPSHOT</version>
+		<version>3.0.0.M2</version>
 		<relativePath>../pom.xml</relativePath>
 	</parent>
 

spring-data-mongodb/src/main/java/org/springframework/data/mongodb/BulkOperationException.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2015-2021 the original author or authors.
+ * Copyright 2015-2020 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.

spring-data-mongodb/src/main/java/org/springframework/data/mongodb/ClientSessionException.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2018-2021 the original author or authors.
+ * Copyright 2018-2020 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.

spring-data-mongodb/src/main/java/org/springframework/data/mongodb/CodecRegistryProvider.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2017-2021 the original author or authors.
+ * Copyright 2017-2020 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.

spring-data-mongodb/src/main/java/org/springframework/data/mongodb/InvalidMongoDbApiUsageException.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2010-2021 the original author or authors.
+ * Copyright 2010-2020 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.

spring-data-mongodb/src/main/java/org/springframework/data/mongodb/LazyLoadingException.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2013-2021 the original author or authors.
+ * Copyright 2013-2020 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.
@@ -25,10 +25,8 @@ public class LazyLoadingException extends UncategorizedDataAccessException {
 	private static final long serialVersionUID = -7089224903873220037L;
 
 	/**
-	 * Constructor for LazyLoadingException.
+	 * @param msg
-	 *
+	 * @param cause
-	 * @param msg the detail message.
-	 * @param cause the exception thrown by underlying data access API.
 	 */
 	public LazyLoadingException(String msg, Throwable cause) {
 		super(msg, cause);

spring-data-mongodb/src/main/java/org/springframework/data/mongodb/MongoCollectionUtils.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2011-2021 the original author or authors.
+ * Copyright 2011-2020 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.

spring-data-mongodb/src/main/java/org/springframework/data/mongodb/MongoDatabaseUtils.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2018-2021 the original author or authors.
+ * Copyright 2018-2020 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.
@@ -79,7 +79,7 @@ public class MongoDatabaseUtils {
 	 * @param factory the {@link MongoDbFactory} to get the {@link MongoDatabase} from.
 	 * @return the {@link MongoDatabase} that is potentially associated with a transactional {@link ClientSession}.
 	 */
-	public static MongoDatabase getDatabase(@Nullable String dbName, MongoDbFactory factory) {
+	public static MongoDatabase getDatabase(String dbName, MongoDbFactory factory) {
 		return doGetMongoDatabase(dbName, factory, SessionSynchronization.ON_ACTUAL_TRANSACTION);
 	}
 
@@ -88,13 +88,13 @@ public class MongoDatabaseUtils {
 	 * <p />
 	 * Registers a {@link MongoSessionSynchronization MongoDB specific transaction synchronization} within the current
 	 * {@link Thread} if {@link TransactionSynchronizationManager#isSynchronizationActive() synchronization is active}.
-	 *
+	 * 
 	 * @param dbName the name of the {@link MongoDatabase} to get.
 	 * @param factory the {@link MongoDbFactory} to get the {@link MongoDatabase} from.
 	 * @param sessionSynchronization the synchronization to use. Must not be {@literal null}.
 	 * @return the {@link MongoDatabase} that is potentially associated with a transactional {@link ClientSession}.
 	 */
-	public static MongoDatabase getDatabase(@Nullable String dbName, MongoDbFactory factory,
+	public static MongoDatabase getDatabase(String dbName, MongoDbFactory factory,
 			SessionSynchronization sessionSynchronization) {
 		return doGetMongoDatabase(dbName, factory, sessionSynchronization);
 	}

spring-data-mongodb/src/main/java/org/springframework/data/mongodb/MongoDbFactory.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2011-2021 the original author or authors.
+ * Copyright 2011-2020 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.
@@ -37,7 +37,7 @@ public interface MongoDbFactory extends CodecRegistryProvider, MongoSessionProvi
 	/**
 	 * Creates a default {@link MongoDatabase} instance.
 	 *
-	 * @return never {@literal null}.
+	 * @return
 	 * @throws DataAccessException
 	 */
 	MongoDatabase getDb() throws DataAccessException;
@@ -46,7 +46,7 @@ public interface MongoDbFactory extends CodecRegistryProvider, MongoSessionProvi
 	 * Creates a {@link DB} instance to access the database with the given name.
 	 *
 	 * @param dbName must not be {@literal null} or empty.
-	 * @return never {@literal null}.
+	 * @return
 	 * @throws DataAccessException
 	 */
 	MongoDatabase getDb(String dbName) throws DataAccessException;

spring-data-mongodb/src/main/java/org/springframework/data/mongodb/MongoResourceHolder.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2018-2021 the original author or authors.
+ * Copyright 2018-2020 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.

spring-data-mongodb/src/main/java/org/springframework/data/mongodb/MongoSessionProvider.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2018-2021 the original author or authors.
+ * Copyright 2018-2020 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.

spring-data-mongodb/src/main/java/org/springframework/data/mongodb/MongoTransactionException.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2018-2021 the original author or authors.
+ * Copyright 2018-2020 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.

spring-data-mongodb/src/main/java/org/springframework/data/mongodb/MongoTransactionManager.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2018-2021 the original author or authors.
+ * Copyright 2018-2020 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.

spring-data-mongodb/src/main/java/org/springframework/data/mongodb/ReactiveMongoDatabaseFactory.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2016-2021 the original author or authors.
+ * Copyright 2016-2020 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.
@@ -38,7 +38,7 @@ public interface ReactiveMongoDatabaseFactory extends CodecRegistryProvider {
 	/**
 	 * Creates a default {@link MongoDatabase} instance.
 	 *
-	 * @return never {@literal null}.
+	 * @return
 	 * @throws DataAccessException
 	 */
 	MongoDatabase getMongoDatabase() throws DataAccessException;
@@ -47,7 +47,7 @@ public interface ReactiveMongoDatabaseFactory extends CodecRegistryProvider {
 	 * Creates a {@link MongoDatabase} instance to access the database with the given name.
 	 *
 	 * @param dbName must not be {@literal null} or empty.
-	 * @return never {@literal null}.
+	 * @return
 	 * @throws DataAccessException
 	 */
 	MongoDatabase getMongoDatabase(String dbName) throws DataAccessException;

spring-data-mongodb/src/main/java/org/springframework/data/mongodb/ReactiveMongoDatabaseUtils.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2019-2021 the original author or authors.
+ * Copyright 2019-2020 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.

spring-data-mongodb/src/main/java/org/springframework/data/mongodb/ReactiveMongoResourceHolder.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2019-2021 the original author or authors.
+ * Copyright 2019-2020 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.

spring-data-mongodb/src/main/java/org/springframework/data/mongodb/ReactiveMongoTransactionManager.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2019-2021 the original author or authors.
+ * Copyright 2019-2020 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.
@@ -110,7 +110,7 @@ public class ReactiveMongoTransactionManager extends AbstractReactiveTransaction
 		this.options = options;
 	}
 
-	/*
+	/* 
 	 * (non-Javadoc)
 	 * @see org.springframework.transaction.reactive.AbstractReactiveTransactionManager#doGetTransaction(org.springframework.transaction.reactive.TransactionSynchronizationManager)
 	 */
@@ -123,7 +123,7 @@ public class ReactiveMongoTransactionManager extends AbstractReactiveTransaction
 		return new ReactiveMongoTransactionObject(resourceHolder);
 	}
 
-	/*
+	/* 
 	 * (non-Javadoc)
 	 * @see org.springframework.transaction.reactive.AbstractReactiveTransactionManager#isExistingTransaction(java.lang.Object)
 	 */
@@ -132,7 +132,7 @@ public class ReactiveMongoTransactionManager extends AbstractReactiveTransaction
 		return extractMongoTransaction(transaction).hasResourceHolder();
 	}
 
-	/*
+	/* 
 	 * (non-Javadoc)
 	 * @see org.springframework.transaction.reactive.AbstractReactiveTransactionManager#doBegin(org.springframework.transaction.reactive.TransactionSynchronizationManager, java.lang.Object, org.springframework.transaction.TransactionDefinition)
 	 */
@@ -175,7 +175,7 @@ public class ReactiveMongoTransactionManager extends AbstractReactiveTransaction
 		});
 	}
 
-	/*
+	/* 
 	 * (non-Javadoc)
 	 * @see org.springframework.transaction.reactive.AbstractReactiveTransactionManager#doSuspend(org.springframework.transaction.reactive.TransactionSynchronizationManager, java.lang.Object)
 	 */
@@ -192,7 +192,7 @@ public class ReactiveMongoTransactionManager extends AbstractReactiveTransaction
 		});
 	}
 
-	/*
+	/* 
 	 * (non-Javadoc)
 	 * @see org.springframework.transaction.reactive.AbstractReactiveTransactionManager#doResume(org.springframework.transaction.reactive.TransactionSynchronizationManager, java.lang.Object, java.lang.Object)
 	 */
@@ -203,7 +203,7 @@ public class ReactiveMongoTransactionManager extends AbstractReactiveTransaction
 				.fromRunnable(() -> synchronizationManager.bindResource(getRequiredDatabaseFactory(), suspendedResources));
 	}
 
-	/*
+	/* 
 	 * (non-Javadoc)
 	 * @see org.springframework.transaction.reactive.AbstractReactiveTransactionManager#doCommit(org.springframework.transaction.reactive.TransactionSynchronizationManager, org.springframework.transaction.reactive.GenericReactiveTransaction)
 	 */
@@ -243,7 +243,7 @@ public class ReactiveMongoTransactionManager extends AbstractReactiveTransaction
 		return transactionObject.commitTransaction();
 	}
 
-	/*
+	/* 
 	 * (non-Javadoc)
 	 * @see org.springframework.transaction.reactive.AbstractReactiveTransactionManager#doRollback(org.springframework.transaction.reactive.TransactionSynchronizationManager, org.springframework.transaction.reactive.GenericReactiveTransaction)
 	 */
@@ -268,7 +268,7 @@ public class ReactiveMongoTransactionManager extends AbstractReactiveTransaction
 		});
 	}
 
-	/*
+	/* 
 	 * (non-Javadoc)
 	 * @see org.springframework.transaction.reactive.AbstractReactiveTransactionManager#doSetRollbackOnly(org.springframework.transaction.reactive.TransactionSynchronizationManager, org.springframework.transaction.reactive.GenericReactiveTransaction)
 	 */
@@ -282,7 +282,7 @@ public class ReactiveMongoTransactionManager extends AbstractReactiveTransaction
 		});
 	}
 
-	/*
+	/* 
 	 * (non-Javadoc)
 	 * @see org.springframework.transaction.reactive.AbstractReactiveTransactionManager#doCleanupAfterCompletion(org.springframework.transaction.reactive.TransactionSynchronizationManager, java.lang.Object)
 	 */
@@ -509,7 +509,7 @@ public class ReactiveMongoTransactionManager extends AbstractReactiveTransaction
 			return session;
 		}
 
-		/*
+		/* 
 		 * (non-Javadoc)
 		 * @see org.springframework.transaction.support.SmartTransactionObject#isRollbackOnly()
 		 */
@@ -518,7 +518,7 @@ public class ReactiveMongoTransactionManager extends AbstractReactiveTransaction
 			return this.resourceHolder != null && this.resourceHolder.isRollbackOnly();
 		}
 
-		/*
+		/* 
 		 * (non-Javadoc)
 		 * @see org.springframework.transaction.support.SmartTransactionObject#flush()
 		 */

spring-data-mongodb/src/main/java/org/springframework/data/mongodb/SessionAwareMethodInterceptor.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2018-2021 the original author or authors.
+ * Copyright 2018-2020 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.

spring-data-mongodb/src/main/java/org/springframework/data/mongodb/SessionSynchronization.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2018-2021 the original author or authors.
+ * Copyright 2018-2020 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.

spring-data-mongodb/src/main/java/org/springframework/data/mongodb/UncategorizedMongoDbException.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2010-2021 the original author or authors.
+ * Copyright 2010-2020 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.

spring-data-mongodb/src/main/java/org/springframework/data/mongodb/config/AbstractMongoClientConfiguration.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2018-2021 the original author or authors.
+ * Copyright 2018-2020 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.

spring-data-mongodb/src/main/java/org/springframework/data/mongodb/config/AbstractMongoConfiguration.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2011-2021 the original author or authors.
+ * Copyright 2011-2020 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.

spring-data-mongodb/src/main/java/org/springframework/data/mongodb/config/AbstractReactiveMongoConfiguration.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2016-2021 the original author or authors.
+ * Copyright 2016-2020 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.

spring-data-mongodb/src/main/java/org/springframework/data/mongodb/config/BeanNames.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2011-2021 the original author or authors.
+ * Copyright 2011-2020 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.

spring-data-mongodb/src/main/java/org/springframework/data/mongodb/config/EnableMongoAuditing.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2013-2021 the original author or authors.
+ * Copyright 2013-2020 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.
@@ -42,21 +42,21 @@ public @interface EnableMongoAuditing {
 	/**
 	 * Configures the {@link AuditorAware} bean to be used to lookup the current principal.
 	 *
-	 * @return empty {@link String} by default.
+	 * @return
 	 */
 	String auditorAwareRef() default "";
 
 	/**
 	 * Configures whether the creation and modification dates are set. Defaults to {@literal true}.
 	 *
-	 * @return {@literal true} by default.
+	 * @return
 	 */
 	boolean setDates() default true;
 
 	/**
 	 * Configures whether the entity shall be marked as modified on creation. Defaults to {@literal true}.
 	 *
-	 * @return {@literal true} by default.
+	 * @return
 	 */
 	boolean modifyOnCreate() default true;
 
@@ -64,7 +64,7 @@ public @interface EnableMongoAuditing {
 	 * Configures a {@link DateTimeProvider} bean name that allows customizing the {@link org.joda.time.DateTime} to be
 	 * used for setting creation and modification dates.
 	 *
-	 * @return empty {@link String} by default.
+	 * @return
 	 */
 	String dateTimeProviderRef() default "";
 }

spring-data-mongodb/src/main/java/org/springframework/data/mongodb/config/GeoJsonConfiguration.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2015-2021 the original author or authors.
+ * Copyright 2015-2020 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.

spring-data-mongodb/src/main/java/org/springframework/data/mongodb/config/GridFsTemplateParser.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2013-2021 the original author or authors.
+ * Copyright 2013-2020 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.

spring-data-mongodb/src/main/java/org/springframework/data/mongodb/config/MappingMongoConverterParser.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2011-2021 the original author or authors.
+ * Copyright 2011-2020 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.

spring-data-mongodb/src/main/java/org/springframework/data/mongodb/config/MongoAuditingBeanDefinitionParser.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2012-2021 the original author or authors.
+ * Copyright 2012-2020 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.

spring-data-mongodb/src/main/java/org/springframework/data/mongodb/config/MongoAuditingRegistrar.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2013-2021 the original author or authors.
+ * Copyright 2013-2020 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.

spring-data-mongodb/src/main/java/org/springframework/data/mongodb/config/MongoClientParser.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2015-2021 the original author or authors.
+ * Copyright 2015-2020 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.

spring-data-mongodb/src/main/java/org/springframework/data/mongodb/config/MongoConfigurationSupport.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2016-2021 the original author or authors.
+ * Copyright 2016-2020 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.
@@ -89,7 +89,7 @@ public abstract class MongoConfigurationSupport {
 	/**
 	 * Register custom {@link Converter}s in a {@link CustomConversions} object if required. These
 	 * {@link CustomConversions} will be registered with the {@link #mappingMongoConverter()} and
-	 * {@link MongoMappingContext}. Returns an empty {@link MongoCustomConversions} instance by default.
+	 * {@link #mongoMappingContext()}. Returns an empty {@link MongoCustomConversions} instance by default.
 	 *
 	 * @return must not be {@literal null}.
 	 */

spring-data-mongodb/src/main/java/org/springframework/data/mongodb/config/MongoCredentialPropertyEditor.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2015-2021 the original author or authors.
+ * Copyright 2015-2020 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.

spring-data-mongodb/src/main/java/org/springframework/data/mongodb/config/MongoDbFactoryParser.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2011-2021 the original author or authors.
+ * Copyright 2011-2020 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.

spring-data-mongodb/src/main/java/org/springframework/data/mongodb/config/MongoJmxParser.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2011-2021 the original author or authors.
+ * Copyright 2011-2020 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.

spring-data-mongodb/src/main/java/org/springframework/data/mongodb/config/MongoNamespaceHandler.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2011-2021 the original author or authors.
+ * Copyright 2011-2020 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.

spring-data-mongodb/src/main/java/org/springframework/data/mongodb/config/MongoParsingUtils.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2011-2021 the original author or authors.
+ * Copyright 2011-2020 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.

spring-data-mongodb/src/main/java/org/springframework/data/mongodb/config/MongoTemplateParser.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2011-2021 the original author or authors.
+ * Copyright 2011-2020 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.

spring-data-mongodb/src/main/java/org/springframework/data/mongodb/config/ReadPreferencePropertyEditor.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2015-2021 the original author or authors.
+ * Copyright 2015-2020 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.

spring-data-mongodb/src/main/java/org/springframework/data/mongodb/config/ServerAddressPropertyEditor.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2011-2021 the original author or authors.
+ * Copyright 2011-2020 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.

spring-data-mongodb/src/main/java/org/springframework/data/mongodb/config/StringToWriteConcernConverter.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2012-2021 the original author or authors.
+ * Copyright 2012-2020 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.

spring-data-mongodb/src/main/java/org/springframework/data/mongodb/config/WriteConcernPropertyEditor.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2011-2021 the original author or authors.
+ * Copyright 2011-2020 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.

spring-data-mongodb/src/main/java/org/springframework/data/mongodb/core/AggregationUtil.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2018-2021 the original author or authors.
+ * Copyright 2018-2020 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.

spring-data-mongodb/src/main/java/org/springframework/data/mongodb/core/BulkOperations.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2015-2021 the original author or authors.
+ * Copyright 2015-2020 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.
@@ -94,6 +94,7 @@ public interface BulkOperations {
 	 * Add a list of updates to the bulk operation. For each update request, all matching documents are updated.
 	 *
 	 * @param updates Update operations to perform.
+	 * @return The bulk operation.
 	 * @return the current {@link BulkOperations} instance with the update added, will never be {@literal null}.
 	 */
 	BulkOperations updateMulti(List<Pair<Query, Update>> updates);
@@ -104,6 +105,7 @@ public interface BulkOperations {
 	 *
 	 * @param query Update criteria.
 	 * @param update Update operation to perform.
+	 * @return The bulk operation.
 	 * @return the current {@link BulkOperations} instance with the update added, will never be {@literal null}.
 	 */
 	BulkOperations upsert(Query query, Update update);
@@ -113,6 +115,7 @@ public interface BulkOperations {
 	 * else an insert.
 	 *
 	 * @param updates Updates/insert operations to perform.
+	 * @return The bulk operation.
 	 * @return the current {@link BulkOperations} instance with the update added, will never be {@literal null}.
 	 */
 	BulkOperations upsert(List<Pair<Query, Update>> updates);

spring-data-mongodb/src/main/java/org/springframework/data/mongodb/core/ChangeStreamEvent.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2018-2021 the original author or authors.
+ * Copyright 2018-2020 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.

spring-data-mongodb/src/main/java/org/springframework/data/mongodb/core/ChangeStreamOptions.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2018-2021 the original author or authors.
+ * Copyright 2018-2020 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.

spring-data-mongodb/src/main/java/org/springframework/data/mongodb/core/CollectionCallback.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2010-2021 the original author or authors.
+ * Copyright 2010-2020 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.
@@ -29,7 +29,7 @@ import com.mongodb.client.MongoCollection;
  * @author Grame Rocher
  * @author Oliver Gierke
  * @author John Brisbin
- * @author Christoph Strobl
+ * @auhtor Christoph Strobl
  * @since 1.0
  */
 public interface CollectionCallback<T> {

spring-data-mongodb/src/main/java/org/springframework/data/mongodb/core/CollectionOptions.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2010-2021 the original author or authors.
+ * Copyright 2010-2020 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.
@@ -95,7 +95,7 @@ public class CollectionOptions {
 
 	/**
 	 * Create new {@link CollectionOptions} with already given settings and capped set to {@literal true}. <br />
-	 * <strong>NOTE</strong> Using capped collections requires defining {@link #size(long)}.
+	 * <strong>NOTE</strong> Using capped collections requires defining {@link #size(int)}.
 	 *
 	 * @return new {@link CollectionOptions}.
 	 * @since 2.0

spring-data-mongodb/src/main/java/org/springframework/data/mongodb/core/CountQuery.java

@@ -0,0 +1,227 @@
+/*
+ * Copyright 2019-2020 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.
+ * You may obtain a copy of the License at
+ *
+ *      https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.springframework.data.mongodb.core;
+
+import java.util.ArrayList;
+import java.util.Arrays;
+import java.util.Collection;
+import java.util.Collections;
+import java.util.List;
+import java.util.Map;
+
+import org.bson.Document;
+
+import org.springframework.data.geo.Point;
+import org.springframework.lang.Nullable;
+import org.springframework.util.ObjectUtils;
+
+/**
+ * Value object representing a count query. Count queries using {@code $near} or {@code $nearSphere} require a rewrite
+ * to {@code $geoWithin}.
+ *
+ * @author Christoph Strobl
+ * @author Mark Paluch
+ * @since 3.0
+ */
+class CountQuery {
+
+	private Document source;
+
+	private CountQuery(Document source) {
+		this.source = source;
+	}
+
+	public static CountQuery of(Document source) {
+		return new CountQuery(source);
+	}
+
+	/**
+	 * Returns the query {@link Document} that can be used with {@code countDocuments()}. Potentially rewrites the query
+	 * to be usable with {@code countDocuments()}.
+	 *
+	 * @return the query {@link Document} that can be used with {@code countDocuments()}.
+	 */
+	public Document toQueryDocument() {
+
+		if (!requiresRewrite(source)) {
+			return source;
+		}
+
+		Document target = new Document();
+
+		for (Map.Entry<String, Object> entry : source.entrySet()) {
+
+			if (entry.getValue() instanceof Document && requiresRewrite(entry.getValue())) {
+
+				Document theValue = (Document) entry.getValue();
+				target.putAll(createGeoWithin(entry.getKey(), theValue, source.get("$and")));
+				continue;
+			}
+
+			if (entry.getValue() instanceof Collection && requiresRewrite(entry.getValue())) {
+
+				Collection<?> source = (Collection<?>) entry.getValue();
+
+				target.put(entry.getKey(), rewriteCollection(source));
+				continue;
+			}
+
+			if ("$and".equals(entry.getKey()) && target.containsKey("$and")) {
+				// Expect $and to be processed with Document and createGeoWithin.
+				continue;
+			}
+
+			target.put(entry.getKey(), entry.getValue());
+		}
+
+		return target;
+	}
+
+	/**
+	 * @param valueToInspect
+	 * @return {@code true} if the enclosing element needs to be rewritten.
+	 */
+	private boolean requiresRewrite(Object valueToInspect) {
+
+		if (valueToInspect instanceof Document) {
+			return requiresRewrite((Document) valueToInspect);
+		}
+
+		if (valueToInspect instanceof Collection) {
+			return requiresRewrite((Collection) valueToInspect);
+		}
+
+		return false;
+	}
+
+	private boolean requiresRewrite(Collection<?> collection) {
+
+		for (Object o : collection) {
+			if (o instanceof Document && requiresRewrite((Document) o)) {
+				return true;
+			}
+		}
+
+		return false;
+	}
+
+	private boolean requiresRewrite(Document document) {
+
+		if (containsNear(document)) {
+			return true;
+		}
+
+		for (Object entry : document.values()) {
+
+			if (requiresRewrite(entry)) {
+				return true;
+			}
+		}
+
+		return false;
+	}
+
+	private Collection<Object> rewriteCollection(Collection<?> source) {
+
+		Collection<Object> rewrittenCollection = new ArrayList<>(source.size());
+
+		for (Object item : source) {
+			if (item instanceof Document && requiresRewrite(item)) {
+				rewrittenCollection.add(CountQuery.of((Document) item).toQueryDocument());
+			} else {
+				rewrittenCollection.add(item);
+			}
+		}
+
+		return rewrittenCollection;
+	}
+
+	/**
+	 * Rewrite the near query for field {@code key} to {@code $geoWithin}.
+	 *
+	 * @param key the queried field.
+	 * @param source source {@link Document}.
+	 * @param $and potentially existing {@code $and} condition.
+	 * @return the rewritten query {@link Document}.
+	 */
+	private static Document createGeoWithin(String key, Document source, @Nullable Object $and) {
+
+		boolean spheric = source.containsKey("$nearSphere");
+		Object $near = spheric ? source.get("$nearSphere") : source.get("$near");
+
+		Number maxDistance = source.containsKey("$maxDistance") ? (Number) source.get("$maxDistance") : Double.MAX_VALUE;
+		List<Object> $centerMax = Arrays.asList(toCenterCoordinates($near), maxDistance);
+		Document $geoWithinMax = new Document("$geoWithin",
+				new Document(spheric ? "$centerSphere" : "$center", $centerMax));
+
+		if (!containsNearWithMinDistance(source)) {
+			return new Document(key, $geoWithinMax);
+		}
+
+		Number minDistance = (Number) source.get("$minDistance");
+		List<Object> $centerMin = Arrays.asList(toCenterCoordinates($near), minDistance);
+		Document $geoWithinMin = new Document("$geoWithin",
+				new Document(spheric ? "$centerSphere" : "$center", $centerMin));
+
+		List<Document> criteria = new ArrayList<>();
+
+		if ($and != null) {
+			if ($and instanceof Collection) {
+				criteria.addAll((Collection) $and);
+			} else {
+				throw new IllegalArgumentException(
+						"Cannot rewrite query as it contains an '$and' element that is not a Collection!: Offending element: "
+								+ $and);
+			}
+		}
+
+		criteria.add(new Document("$nor", Collections.singletonList(new Document(key, $geoWithinMin))));
+		criteria.add(new Document(key, $geoWithinMax));
+		return new Document("$and", criteria);
+	}
+
+	private static boolean containsNear(Document source) {
+		return source.containsKey("$near") || source.containsKey("$nearSphere");
+	}
+
+	private static boolean containsNearWithMinDistance(Document source) {
+
+		if (!containsNear(source)) {
+			return false;
+		}
+
+		return source.containsKey("$minDistance");
+	}
+
+	private static Object toCenterCoordinates(Object value) {
+
+		if (ObjectUtils.isArray(value)) {
+			return value;
+		}
+
+		if (value instanceof Point) {
+			return Arrays.asList(((Point) value).getX(), ((Point) value).getY());
+		}
+
+		if (value instanceof Document && ((Document) value).containsKey("x")) {
+
+			Document point = (Document) value;
+			return Arrays.asList(point.get("x"), point.get("y"));
+		}
+
+		return value;
+	}
+}

spring-data-mongodb/src/main/java/org/springframework/data/mongodb/core/CursorPreparer.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2021 the original author or authors.
+ * Copyright 2002-2020 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.
@@ -43,10 +43,9 @@ public interface CursorPreparer extends ReadPreferenceAware {
 	/**
 	 * Prepare the given cursor (apply limits, skips and so on). Returns the prepared cursor.
 	 *
-	 * @param iterable must not be {@literal null}.
+	 * @param cursor
-	 * @return never {@literal null}.
 	 */
-	FindIterable<Document> prepare(FindIterable<Document> iterable);
+	FindIterable<Document> prepare(FindIterable<Document> cursor);
 
 	/**
 	 * Apply query specific settings to {@link MongoCollection} and initate a find operation returning a
@@ -54,7 +53,7 @@ public interface CursorPreparer extends ReadPreferenceAware {
 	 *
 	 * @param collection must not be {@literal null}.
 	 * @param find must not be {@literal null}.
-	 * @return never {@literal null}.
+	 * @return
 	 * @throws IllegalArgumentException if one of the required arguments is {@literal null}.
 	 * @since 2.2
 	 */

spring-data-mongodb/src/main/java/org/springframework/data/mongodb/core/DbCallback.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2010-2021 the original author or authors.
+ * Copyright 2010-2020 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.

spring-data-mongodb/src/main/java/org/springframework/data/mongodb/core/DefaultBulkOperations.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2015-2021 the original author or authors.
+ * Copyright 2015-2020 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.

spring-data-mongodb/src/main/java/org/springframework/data/mongodb/core/DefaultIndexOperations.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2011-2021 the original author or authors.
+ * Copyright 2011-2020 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.

spring-data-mongodb/src/main/java/org/springframework/data/mongodb/core/DefaultIndexOperationsProvider.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2016-2021 the original author or authors.
+ * Copyright 2016-2020 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.

spring-data-mongodb/src/main/java/org/springframework/data/mongodb/core/DefaultReactiveIndexOperations.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2016-2021 the original author or authors.
+ * Copyright 2016-2020 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.

spring-data-mongodb/src/main/java/org/springframework/data/mongodb/core/DefaultScriptOperations.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2014-2021 the original author or authors.
+ * Copyright 2014-2020 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.

spring-data-mongodb/src/main/java/org/springframework/data/mongodb/core/DefaultWriteConcernResolver.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2015-2021 the original author or authors.
+ * Copyright 2015-2020 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.

spring-data-mongodb/src/main/java/org/springframework/data/mongodb/core/DocumentCallbackHandler.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2010-2021 the original author or authors.
+ * Copyright 2010-2020 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.
@@ -23,7 +23,7 @@ import com.mongodb.MongoException;
 /**
  * An interface used by {@link MongoTemplate} for processing documents returned from a MongoDB query on a per-document
  * basis. Implementations of this interface perform the actual work of prcoessing each document but don't need to worry
- * about exception handling. {@link MongoException}s will be caught and translated by the calling MongoTemplate An
+ * about exception handling. {@MongoException}s will be caught and translated by the calling MongoTemplate An
  * DocumentCallbackHandler is typically stateful: It keeps the result state within the object, to be available later for
  * later inspection.
  *

spring-data-mongodb/src/main/java/org/springframework/data/mongodb/core/EntityOperations.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2018-2021 the original author or authors.
+ * Copyright 2018-2020 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.
@@ -66,7 +66,7 @@ class EntityOperations {
 	 * Creates a new {@link Entity} for the given bean.
 	 *
 	 * @param entity must not be {@literal null}.
-	 * @return new instance of {@link Entity}.
+	 * @return
 	 */
 	@SuppressWarnings({ "unchecked", "rawtypes" })
 	public <T> Entity<T> forEntity(T entity) {
@@ -89,7 +89,7 @@ class EntityOperations {
 	 *
 	 * @param entity must not be {@literal null}.
 	 * @param conversionService must not be {@literal null}.
-	 * @return new instance of {@link AdaptibleEntity}.
+	 * @return
 	 */
 	@SuppressWarnings({ "unchecked", "rawtypes" })
 	public <T> AdaptibleEntity<T> forEntity(T entity, ConversionService conversionService) {
@@ -108,10 +108,6 @@ class EntityOperations {
 		return AdaptibleMappedEntity.of(entity, context, conversionService);
 	}
 
-	/**
-	 * @param entityClass should not be null.
-	 * @return the {@link MongoPersistentEntity#getCollection() collection name}.
-	 */
 	public String determineCollectionName(@Nullable Class<?> entityClass) {
 
 		if (entityClass == null) {
@@ -142,7 +138,7 @@ class EntityOperations {
 	 * {@code _id} if no identifier property can be found.
 	 *
 	 * @param type must not be {@literal null}.
-	 * @return never {@literal null}.
+	 * @return
 	 */
 	public String getIdPropertyName(Class<?> type) {
 

spring-data-mongodb/src/main/java/org/springframework/data/mongodb/core/ExecutableAggregationOperation.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2017-2021 the original author or authors.
+ * Copyright 2017-2020 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.
@@ -88,10 +88,10 @@ public interface ExecutableAggregationOperation {
 
 		/**
 		 * Apply pipeline operations as specified and stream all matching elements. <br />
-		 * Returns a {@link CloseableIterator} that wraps the a Mongo DB {@link com.mongodb.client.FindIterable}
+		 * Returns a {@link CloseableIterator} that wraps the a Mongo DB {@link com.mongodb.Cursor}
 		 *
-		 * @return a {@link CloseableIterator} that wraps the a Mongo DB {@link com.mongodb.client.FindIterable} that needs
+		 * @return a {@link CloseableIterator} that wraps the a Mongo DB {@link com.mongodb.Cursor} that needs to be closed.
-		 *         to be closed. Never {@literal null}.
+		 *         Never {@literal null}.
 		 */
 		CloseableIterator<T> stream();
 	}

spring-data-mongodb/src/main/java/org/springframework/data/mongodb/core/ExecutableAggregationOperationSupport.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2017-2021 the original author or authors.
+ * Copyright 2017-2020 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.

spring-data-mongodb/src/main/java/org/springframework/data/mongodb/core/ExecutableFindOperation.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2017-2021 the original author or authors.
+ * Copyright 2017-2020 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.
@@ -117,8 +117,8 @@ public interface ExecutableFindOperation {
 		/**
 		 * Stream all matching elements.
 		 *
-		 * @return a {@link Stream} that wraps the a Mongo DB {@link com.mongodb.client.FindIterable} that needs to be
+		 * @return a {@link Stream} that wraps the a Mongo DB {@link com.mongodb.Cursor} that needs to be closed. Never
-		 *         closed. Never {@literal null}.
+		 *         {@literal null}.
 		 */
 		Stream<T> stream();
 

spring-data-mongodb/src/main/java/org/springframework/data/mongodb/core/ExecutableFindOperationSupport.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2017-2021 the original author or authors.
+ * Copyright 2017-2020 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.
@@ -15,6 +15,7 @@
  */
 package org.springframework.data.mongodb.core;
 
+import com.mongodb.ReadPreference;
 import lombok.AccessLevel;
 import lombok.NonNull;
 import lombok.RequiredArgsConstructor;
@@ -25,7 +26,6 @@ import java.util.Optional;
 import java.util.stream.Stream;
 
 import org.bson.Document;
-
 import org.springframework.dao.IncorrectResultSizeDataAccessException;
 import org.springframework.data.mongodb.core.query.NearQuery;
 import org.springframework.data.mongodb.core.query.Query;
@@ -37,7 +37,6 @@ import org.springframework.util.Assert;
 import org.springframework.util.ObjectUtils;
 import org.springframework.util.StringUtils;
 
-import com.mongodb.ReadPreference;
 import com.mongodb.client.FindIterable;
 
 /**
@@ -258,9 +257,9 @@ class ExecutableFindOperationSupport implements ExecutableFindOperation {
 		 * @see org.springframework.data.mongodb.core.CursorPreparer#prepare(com.mongodb.clientFindIterable)
 		 */
 		@Override
-		public FindIterable<Document> prepare(FindIterable<Document> iterable) {
+		public FindIterable<Document> prepare(FindIterable<Document> cursor) {
 
-			FindIterable<Document> target = delegate != null ? delegate.prepare(iterable) : iterable;
+			FindIterable<Document> target = delegate != null ? delegate.prepare(cursor) : cursor;
 			return limit.map(target::limit).orElse(target);
 		}
 

spring-data-mongodb/src/main/java/org/springframework/data/mongodb/core/ExecutableInsertOperation.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2017-2021 the original author or authors.
+ * Copyright 2017-2020 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.

spring-data-mongodb/src/main/java/org/springframework/data/mongodb/core/ExecutableInsertOperationSupport.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2017-2021 the original author or authors.
+ * Copyright 2017-2020 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.

spring-data-mongodb/src/main/java/org/springframework/data/mongodb/core/ExecutableMapReduceOperation.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2018-2021 the original author or authors.
+ * Copyright 2018-2020 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.

spring-data-mongodb/src/main/java/org/springframework/data/mongodb/core/ExecutableMapReduceOperationSupport.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2018-2021 the original author or authors.
+ * Copyright 2018-2020 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.

spring-data-mongodb/src/main/java/org/springframework/data/mongodb/core/ExecutableRemoveOperation.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2017-2021 the original author or authors.
+ * Copyright 2017-2020 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.

spring-data-mongodb/src/main/java/org/springframework/data/mongodb/core/ExecutableRemoveOperationSupport.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2017-2021 the original author or authors.
+ * Copyright 2017-2020 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.

spring-data-mongodb/src/main/java/org/springframework/data/mongodb/core/ExecutableUpdateOperation.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2017-2021 the original author or authors.
+ * Copyright 2017-2020 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.
@@ -17,8 +17,10 @@ package org.springframework.data.mongodb.core;
 
 import java.util.Optional;
 
+import org.springframework.data.mongodb.core.aggregation.AggregationUpdate;
 import org.springframework.data.mongodb.core.query.Query;
 import org.springframework.data.mongodb.core.query.Update;
+import org.springframework.data.mongodb.core.query.UpdateDefinition;
 import org.springframework.lang.Nullable;
 
 import com.mongodb.client.result.UpdateResult;
@@ -151,13 +153,16 @@ public interface ExecutableUpdateOperation {
 	interface UpdateWithUpdate<T> {
 
 		/**
-		 * Set the {@link Update} to be applied.
+		 * Set the {@link UpdateDefinition} to be applied.
 		 *
 		 * @param update must not be {@literal null}.
 		 * @return new instance of {@link TerminatingUpdate}.
 		 * @throws IllegalArgumentException if update is {@literal null}.
+		 * @since 3.0
+		 * @see Update
+		 * @see AggregationUpdate
 		 */
-		TerminatingUpdate<T> apply(Update update);
+		TerminatingUpdate<T> apply(UpdateDefinition update);
 
 		/**
 		 * Specify {@code replacement} object.

spring-data-mongodb/src/main/java/org/springframework/data/mongodb/core/ExecutableUpdateOperationSupport.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2017-2021 the original author or authors.
+ * Copyright 2017-2020 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.
@@ -21,7 +21,7 @@ import lombok.RequiredArgsConstructor;
 import lombok.experimental.FieldDefaults;
 
 import org.springframework.data.mongodb.core.query.Query;
-import org.springframework.data.mongodb.core.query.Update;
+import org.springframework.data.mongodb.core.query.UpdateDefinition;
 import org.springframework.lang.Nullable;
 import org.springframework.util.Assert;
 import org.springframework.util.StringUtils;
@@ -67,7 +67,7 @@ class ExecutableUpdateOperationSupport implements ExecutableUpdateOperation {
 		@NonNull MongoTemplate template;
 		@NonNull Class domainType;
 		Query query;
-		@Nullable Update update;
+		@Nullable UpdateDefinition update;
 		@Nullable String collection;
 		@Nullable FindAndModifyOptions findAndModifyOptions;
 		@Nullable FindAndReplaceOptions findAndReplaceOptions;
@@ -76,10 +76,10 @@ class ExecutableUpdateOperationSupport implements ExecutableUpdateOperation {
 
 		/*
 		 * (non-Javadoc)
-		 * @see org.springframework.data.mongodb.core.ExecutableUpdateOperation.UpdateWithUpdate#apply(Update)
+		 * @see org.springframework.data.mongodb.core.ExecutableUpdateOperation.UpdateWithUpdate#apply(org.springframework.data.mongodb.core.query.UpdateDefinition)
 		 */
 		@Override
-		public TerminatingUpdate<T> apply(Update update) {
+		public TerminatingUpdate<T> apply(UpdateDefinition update) {
 
 			Assert.notNull(update, "Update must not be null!");
 

spring-data-mongodb/src/main/java/org/springframework/data/mongodb/core/FindAndModifyOptions.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2010-2021 the original author or authors.
+ * Copyright 2010-2020 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.
@@ -78,7 +78,7 @@ public class FindAndModifyOptions {
 	}
 
 	/**
-	 * Create new {@link FindAndModifyOptions} based on option of given {@literal source}.
+	 * Create new {@link FindAndModifyOptions} based on option of given {@litearl source}.
 	 *
 	 * @param source can be {@literal null}.
 	 * @return new instance of {@link FindAndModifyOptions}.
@@ -117,8 +117,8 @@ public class FindAndModifyOptions {
 	/**
 	 * Define the {@link Collation} specifying language-specific rules for string comparison.
 	 *
-	 * @param collation can be {@literal null}.
+	 * @param collation
-	 * @return this.
+	 * @return
 	 * @since 2.0
 	 */
 	public FindAndModifyOptions collation(@Nullable Collation collation) {
@@ -142,7 +142,7 @@ public class FindAndModifyOptions {
 	/**
 	 * Get the {@link Collation} specifying language-specific rules for string comparison.
 	 *
-	 * @return never {@literal null}.
+	 * @return
 	 * @since 2.0
 	 */
 	public Optional<Collation> getCollation() {

spring-data-mongodb/src/main/java/org/springframework/data/mongodb/core/FindAndReplaceOptions.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2018-2021 the original author or authors.
+ * Copyright 2018-2020 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.
@@ -116,7 +116,7 @@ public class FindAndReplaceOptions {
 	/**
 	 * Get the bit indicating to return the replacement document.
 	 *
-	 * @return {@literal true} if set.
+	 * @return
 	 */
 	public boolean isReturnNew() {
 		return returnNew;
@@ -125,7 +125,7 @@ public class FindAndReplaceOptions {
 	/**
 	 * Get the bit indicating if to create a new document if not exists.
 	 *
-	 * @return {@literal true} if set.
+	 * @return
 	 */
 	public boolean isUpsert() {
 		return upsert;

spring-data-mongodb/src/main/java/org/springframework/data/mongodb/core/FindPublisherPreparer.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2016-2021 the original author or authors.
+ * Copyright 2016-2020 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.
@@ -54,7 +54,7 @@ public interface FindPublisherPreparer extends ReadPreferenceAware {
 	 *
 	 * @param collection must not be {@literal null}.
 	 * @param find must not be {@literal null}.
-	 * @return never {@literal null}.
+	 * @return
 	 * @throws IllegalArgumentException if one of the required arguments is {@literal null}.
 	 * @since 2.2
 	 */

spring-data-mongodb/src/main/java/org/springframework/data/mongodb/core/FluentMongoOperations.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2017-2021 the original author or authors.
+ * Copyright 2017-2020 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.

spring-data-mongodb/src/main/java/org/springframework/data/mongodb/core/GeoCommandStatistics.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2016-2021 the original author or authors.
+ * Copyright 2016-2020 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.
@@ -47,7 +47,7 @@ class GeoCommandStatistics {
 	 * Creates a new {@link GeoCommandStatistics} from the given command result extracting the statistics.
 	 *
 	 * @param commandResult must not be {@literal null}.
-	 * @return never {@literal null}.
+	 * @return
 	 */
 	public static GeoCommandStatistics from(Document commandResult) {
 
@@ -61,7 +61,7 @@ class GeoCommandStatistics {
 	 * Returns the average distance reported by the command result. Mitigating a removal of the field in case the command
 	 * didn't return any result introduced in MongoDB 3.2 RC1.
 	 *
-	 * @return never {@literal null}, uses {@link Double#NaN} if {@literal avgDistance} does not exist.
+	 * @return
 	 * @see <a href="https://jira.mongodb.org/browse/SERVER-21024">MongoDB Jira SERVER-21024</a>
 	 */
 	public double getAverageDistance() {

spring-data-mongodb/src/main/java/org/springframework/data/mongodb/core/IndexConverters.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2016-2021 the original author or authors.
+ * Copyright 2016-2020 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.

spring-data-mongodb/src/main/java/org/springframework/data/mongodb/core/MappedDocument.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2018-2021 the original author or authors.
+ * Copyright 2018-2020 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.

spring-data-mongodb/src/main/java/org/springframework/data/mongodb/core/MappingMongoJsonSchemaCreator.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2019-2021 the original author or authors.
+ * Copyright 2019-2020 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.

spring-data-mongodb/src/main/java/org/springframework/data/mongodb/core/MongoAction.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2011-2021 the original author or authors.
+ * Copyright 2011-2020 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.

spring-data-mongodb/src/main/java/org/springframework/data/mongodb/core/MongoActionOperation.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2011-2021 the original author or authors.
+ * Copyright 2011-2020 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.

spring-data-mongodb/src/main/java/org/springframework/data/mongodb/core/MongoAdmin.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2011-2021 the original author or authors.
+ * Copyright 2011-2020 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.

spring-data-mongodb/src/main/java/org/springframework/data/mongodb/core/MongoAdminOperations.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2011-2021 the original author or authors.
+ * Copyright 2011-2020 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.

spring-data-mongodb/src/main/java/org/springframework/data/mongodb/core/MongoClientFactoryBean.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2015-2021 the original author or authors.
+ * Copyright 2015-2020 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.

spring-data-mongodb/src/main/java/org/springframework/data/mongodb/core/MongoClientOptionsFactoryBean.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2015-2021 the original author or authors.
+ * Copyright 2015-2020 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.