Update links to Spring Framework reference docs.

Closes: #4267

Author: k0mmsussert0d

src/main/asciidoc/preface.adoc

@@ -10,13 +10,13 @@ This section provides some basic introduction to Spring and Document databases.
 [[get-started:first-steps:spring]]
 == Learning Spring
 
-Spring Data uses Spring framework's https://docs.spring.io/spring/docs/{springVersion}/spring-framework-reference/core.html[core] functionality, including:
+Spring Data uses Spring framework's https://docs.spring.io/spring-framework/docs/{springVersion}/reference/html/core.html[core] functionality, including:
 
-* https://docs.spring.io/spring/docs/{springVersion}/spring-framework-reference/core.html#beans[IoC] container
-* https://docs.spring.io/spring/docs/{springVersion}/spring-framework-reference/core.html#validation[type conversion system]
-* https://docs.spring.io/spring/docs/{springVersion}/spring-framework-reference/core.html#expressions[expression language]
-* https://docs.spring.io/spring/docs/{springVersion}/spring-framework-reference/integration.html#jmx[JMX integration]
-* https://docs.spring.io/spring/docs/{springVersion}/spring-framework-reference/data-access.html#dao-exceptions[DAO exception hierarchy].
+* https://docs.spring.io/spring-framework/docs/{springVersion}/reference/html/core.html#beans[IoC] container
+* https://docs.spring.io/spring-framework/docs/{springVersion}/reference/html/core.html#validation[type conversion system]
+* https://docs.spring.io/spring-framework/docs/{springVersion}/reference/html/core.html#expressions[expression language]
+* https://docs.spring.io/spring-framework/docs/{springVersion}/reference/html/integration.html#jmx[JMX integration]
+* https://docs.spring.io/spring-framework/docs/{springVersion}/reference/html/data-access.html#dao-exceptions[DAO exception hierarchy].
 
 While you need not know the Spring APIs, understanding the concepts behind them is important. At a minimum, the idea behind Inversion of Control (IoC) should be familiar, and you should be familiar with whatever IoC container you choose to use.
 

src/main/asciidoc/reference/client-session-transactions.adoc

@@ -177,7 +177,7 @@ CAUTION: Changing state of `MongoTemplate` during runtime (as you might think wo
 [[mongo.transactions.tx-manager]]
 == Transactions with `MongoTransactionManager`
 
-`MongoTransactionManager` is the gateway to the well known Spring transaction support. It lets applications use  https://docs.spring.io/spring/docs/{springVersion}/spring-framework-reference/html/transaction.html[the managed transaction features of Spring].
+`MongoTransactionManager` is the gateway to the well known Spring transaction support. It lets applications use  https://docs.spring.io/spring-framework/docs/{springVersion}/reference/html/data-access.html#transaction[the managed transaction features of Spring].
 The `MongoTransactionManager` binds a `ClientSession` to the thread. `MongoTemplate` detects the session and operates on these resources which are associated with the transaction accordingly. `MongoTemplate` can also participate in other, ongoing transactions. The following example shows how to create and use transactions with a `MongoTransactionManager`:
 
 .Transactions with `MongoTransactionManager`
@@ -291,7 +291,7 @@ Mono<Void> process(step)
 == Transactions with `ReactiveMongoTransactionManager`
 
 `ReactiveMongoTransactionManager` is the gateway to the well known Spring transaction support.
-It allows applications to leverage https://docs.spring.io/spring/docs/{springVersion}/spring-framework-reference/html/transaction.html[the managed transaction features of Spring].
+It allows applications to leverage https://docs.spring.io/spring-framework/docs/{springVersion}/reference/html/data-access.html#transaction[the managed transaction features of Spring].
 The `ReactiveMongoTransactionManager` binds a `ClientSession` to the subscriber `Context`.
 `ReactiveMongoTemplate` detects the session and operates on these resources which are associated with the transaction accordingly.
 `ReactiveMongoTemplate` can also participate in other, ongoing transactions.

src/main/asciidoc/reference/jmx.adoc

@@ -1,7 +1,7 @@
 [[mongo.jmx]]
 = JMX support
 
-The JMX support for MongoDB exposes the results of running the 'serverStatus' command on the admin database for a single MongoDB server instance. It also exposes an administrative MBean, `MongoAdmin`, that lets you perform administrative operations, such as dropping or creating a database. The JMX features build upon the JMX feature set available in the Spring Framework. See https://docs.spring.io/spring/docs/{springVersion}/spring-framework-reference/integration.html#jmx[here] for more details.
+The JMX support for MongoDB exposes the results of running the 'serverStatus' command on the admin database for a single MongoDB server instance. It also exposes an administrative MBean, `MongoAdmin`, that lets you perform administrative operations, such as dropping or creating a database. The JMX features build upon the JMX feature set available in the Spring Framework. See https://docs.spring.io/spring-framework/docs/{springVersion}/reference/html/integration.html#jmx[here] for more details.
 
 [[mongodb:jmx-configuration]]
 == MongoDB JMX Configuration

src/main/asciidoc/reference/mongo-custom-conversions.adoc

@@ -40,7 +40,7 @@ The snippet above is handy for providing simple type hints. To gain more fine-gr
 
 The `MappingMongoConverter` checks to see if any Spring converters can handle a specific class before attempting to map the object itself. To 'hijack' the normal mapping strategies of the `MappingMongoConverter`, perhaps for increased performance or other custom mapping needs, you first need to create an implementation of the Spring `Converter` interface and then register it with the `MappingConverter`.
 
-NOTE: For more information on the Spring type conversion service, see the reference docs https://docs.spring.io/spring/docs/{springVersion}/spring-framework-reference/core.html#validation[here].
+NOTE: For more information on the Spring type conversion service, see the reference docs https://docs.spring.io/spring-framework/docs/{springVersion}/reference/html/core.html#validation[here].
 
 [[mongo.custom-converters.writer]]
 === Saving by Using a Registered Spring Converter

src/main/asciidoc/reference/mongo-repositories-aggregation.adoc

@@ -3,7 +3,7 @@
 
 The repository layer offers means to interact with <<mongo.aggregation, the aggregation framework>> via annotated repository query methods.
 Similar to the <<mongodb.repositories.queries.json-based, JSON based queries>>, you can define a pipeline using the `org.springframework.data.mongodb.repository.Aggregation` annotation.
-The definition may contain simple placeholders like `?0` as well as https://docs.spring.io/spring/docs/{springVersion}/spring-framework-reference/core.html#expressions[SpEL expressions] `?#{ … }`.
+The definition may contain simple placeholders like `?0` as well as https://docs.spring.io/spring-framework/docs/{springVersion}/reference/html/core.html#expressions[SpEL expressions] `?#{ … }`.
 
 .Aggregating Repository Method
 ====

src/main/asciidoc/reference/mongodb.adoc

@@ -167,7 +167,7 @@ There is a https://github.com/spring-projects/spring-data-examples[GitHub reposi
 
 One of the first tasks when using MongoDB and Spring is to create a `com.mongodb.client.MongoClient` object using the IoC container. There are two main ways to do this, either by using Java-based bean metadata or by using XML-based bean metadata. Both are discussed in the following sections.
 
-NOTE: For those not familiar with how to configure the Spring container using Java-based bean metadata instead of XML-based metadata, see the high-level introduction in the reference docs https://docs.spring.io/spring/docs/3.2.x/spring-framework-reference/html/new-in-3.0.html#new-java-configuration[here] as well as the detailed documentation https://docs.spring.io/spring/docs/{springVersion}/spring-framework-reference/core.html#beans-java-instantiating-container[here].
+NOTE: For those not familiar with how to configure the Spring container using Java-based bean metadata instead of XML-based metadata, see the high-level introduction in the reference docs https://docs.spring.io/spring/docs/3.2.x/spring-framework-reference/html/new-in-3.0.html#new-java-configuration[here] as well as the detailed documentation https://docs.spring.io/spring-framework/docs/{springVersion}/reference/html/core.html#beans-java-instantiating-container[here].
 
 [[mongo.mongo-java-config]]
 === Registering a Mongo Instance by using Java-based Metadata
@@ -191,7 +191,7 @@ public class AppConfig {
 ----
 ====
 
-This approach lets you use the standard `com.mongodb.client.MongoClient` instance, with the container using Spring's `MongoClientFactoryBean`. As compared to instantiating a `com.mongodb.client.MongoClient` instance directly, the `FactoryBean` has the added advantage of also providing the container with an `ExceptionTranslator` implementation that translates MongoDB exceptions to exceptions in Spring's portable `DataAccessException` hierarchy for data access classes annotated with the `@Repository` annotation. This hierarchy and the use of `@Repository` is described in https://docs.spring.io/spring/docs/{springVersion}/spring-framework-reference/data-access.html[Spring's DAO support features].
+This approach lets you use the standard `com.mongodb.client.MongoClient` instance, with the container using Spring's `MongoClientFactoryBean`. As compared to instantiating a `com.mongodb.client.MongoClient` instance directly, the `FactoryBean` has the added advantage of also providing the container with an `ExceptionTranslator` implementation that translates MongoDB exceptions to exceptions in Spring's portable `DataAccessException` hierarchy for data access classes annotated with the `@Repository` annotation. This hierarchy and the use of `@Repository` is described in https://docs.spring.io/spring-framework/docs/{springVersion}/reference/html/data-access.html[Spring's DAO support features].
 
 The following example shows an example of a Java-based bean metadata that supports exception translation on `@Repository` annotated classes:
 
@@ -2258,7 +2258,7 @@ Therefore a given `Query` will be rewritten for `count` operations using `Reacti
 
 You can query MongoDB by using Map-Reduce, which is useful for batch processing, for data aggregation, and for when the query language does not fulfill your needs.
 
-Spring provides integration with MongoDB's Map-Reduce by providing methods on `MongoOperations` to simplify the creation and running of Map-Reduce operations.It can convert the results of a Map-Reduce operation to a POJO and integrates with Spring's https://docs.spring.io/spring/docs/{springVersion}/spring-framework-reference/core.html#resources[Resource abstraction].This lets you place your JavaScript files on the file system, classpath, HTTP server, or any other Spring Resource implementation and then reference the JavaScript resources through an easy URI style syntax -- for example, `classpath:reduce.js;`.Externalizing JavaScript code in files is often preferable to embedding them as Java strings in your code.Note that you can still pass JavaScript code as Java strings if you prefer.
+Spring provides integration with MongoDB's Map-Reduce by providing methods on `MongoOperations` to simplify the creation and running of Map-Reduce operations.It can convert the results of a Map-Reduce operation to a POJO and integrates with Spring's https://docs.spring.io/spring-framework/docs/{springVersion}/reference/html/core.html#resources[Resource abstraction].This lets you place your JavaScript files on the file system, classpath, HTTP server, or any other Spring Resource implementation and then reference the JavaScript resources through an easy URI style syntax -- for example, `classpath:reduce.js;`.Externalizing JavaScript code in files is often preferable to embedding them as Java strings in your code.Note that you can still pass JavaScript code as Java strings if you prefer.
 
 [[mongo.mapreduce.example]]
 === Example Usage
@@ -2413,7 +2413,7 @@ scriptOps.call("echo", "execute script via name");            <3>
 
 As an alternative to using Map-Reduce to perform data aggregation, you can use the https://www.mongodb.org/display/DOCS/Aggregation#Aggregation-Group[`group` operation] which feels similar to using SQL's group by query style, so it may feel more approachable vs. using Map-Reduce. Using the group operations does have some limitations, for example it is not supported in a shared environment and it returns the full result set in a single BSON object, so the result should be small, less than 10,000 keys.
 
-Spring provides integration with MongoDB's group operation by providing methods on MongoOperations to simplify the creation and running of group operations. It can convert the results of the group operation to a POJO and also integrates with Spring's https://docs.spring.io/spring/docs/{springVersion}/spring-framework-reference/core.html#resources[Resource abstraction] abstraction. This will let you place your JavaScript files on the file system, classpath, http server or any other Spring Resource implementation and then reference the JavaScript resources via an easy URI style syntax, e.g. 'classpath:reduce.js;. Externalizing JavaScript code in files if often preferable to embedding them as Java strings in your code. Note that you can still pass JavaScript code as Java strings if you prefer.
+Spring provides integration with MongoDB's group operation by providing methods on MongoOperations to simplify the creation and running of group operations. It can convert the results of the group operation to a POJO and also integrates with Spring's https://docs.spring.io/spring-framework/docs/{springVersion}/reference/html/core.html#resources[Resource abstraction] abstraction. This will let you place your JavaScript files on the file system, classpath, http server or any other Spring Resource implementation and then reference the JavaScript resources via an easy URI style syntax, e.g. 'classpath:reduce.js;. Externalizing JavaScript code in files if often preferable to embedding them as Java strings in your code. Note that you can still pass JavaScript code as Java strings if you prefer.
 
 [[mongo.group.example]]
 === Example Usage
@@ -2664,7 +2664,7 @@ include::./mongo-entity-callbacks.adoc[leveloffset=+2]
 
 The Spring framework provides exception translation for a wide variety of database and mapping technologies. This has traditionally been for JDBC and JPA. The Spring support for MongoDB extends this feature to the MongoDB Database by providing an implementation of the `org.springframework.dao.support.PersistenceExceptionTranslator` interface.
 
-The motivation behind mapping to Spring's https://docs.spring.io/spring/docs/{springVersion}/spring-framework-reference/data-access.html#dao-exceptions[consistent data access exception hierarchy] is that you are then able to write portable and descriptive exception handling code without resorting to coding against MongoDB error codes. All of Spring's data access exceptions are inherited from the root `DataAccessException` class so that you can be sure to catch all database related exception within a single try-catch block. Note that not all exceptions thrown by the MongoDB driver inherit from the `MongoException` class. The inner exception and message are preserved so that no information is lost.
+The motivation behind mapping to Spring's https://docs.spring.io/spring-framework/docs/{springVersion}/reference/html/data-access.html#dao-exceptions[consistent data access exception hierarchy] is that you are then able to write portable and descriptive exception handling code without resorting to coding against MongoDB error codes. All of Spring's data access exceptions are inherited from the root `DataAccessException` class so that you can be sure to catch all database related exception within a single try-catch block. Note that not all exceptions thrown by the MongoDB driver inherit from the `MongoException` class. The inner exception and message are preserved so that no information is lost.
 
 Some of the mappings performed by the `MongoExceptionTranslator` are `com.mongodb.Network to DataAccessResourceFailureException` and `MongoException` error codes 1003, 12001, 12010, 12011, and 12012 to `InvalidDataAccessApiUsageException`. Look into the implementation for more details on the mapping.
 

src/main/asciidoc/reference/reactive-mongodb.adoc

@@ -164,7 +164,7 @@ public class AppConfig {
 
 This approach lets you use the standard `com.mongodb.reactivestreams.client.MongoClient` API (which you may already know).
 
-An alternative is to register an instance of `com.mongodb.reactivestreams.client.MongoClient` instance with the container by using Spring's `ReactiveMongoClientFactoryBean`. As compared to instantiating a `com.mongodb.reactivestreams.client.MongoClient` instance directly, the `FactoryBean` approach has the added advantage of also providing the container with an `ExceptionTranslator` implementation that translates MongoDB exceptions to exceptions in Spring's portable `DataAccessException` hierarchy for data access classes annotated with the `@Repository` annotation. This hierarchy and use of `@Repository` is described in https://docs.spring.io/spring/docs/{springVersion}/spring-framework-reference/data-access.html[Spring's DAO support features].
+An alternative is to register an instance of `com.mongodb.reactivestreams.client.MongoClient` instance with the container by using Spring's `ReactiveMongoClientFactoryBean`. As compared to instantiating a `com.mongodb.reactivestreams.client.MongoClient` instance directly, the `FactoryBean` approach has the added advantage of also providing the container with an `ExceptionTranslator` implementation that translates MongoDB exceptions to exceptions in Spring's portable `DataAccessException` hierarchy for data access classes annotated with the `@Repository` annotation. This hierarchy and use of `@Repository` is described in https://docs.spring.io/spring-framework/docs/{springVersion}/reference/html/data-access.html[Spring's DAO support features].
 
 The following example shows Java-based bean metadata that supports exception translation on `@Repository` annotated classes:
 
@@ -532,7 +532,7 @@ class ReactiveGridFsClient {
 
 The `store(…)` operations take an `Publisher<DataBuffer>`, a filename, and (optionally) metadata information about the file to store. The metadata can be an arbitrary object, which will be marshaled by the `MongoConverter` configured with the `ReactiveGridFsTemplate`. Alternatively, you can also provide a `Document`.
 
-NOTE: MongoDB's driver uses `AsyncInputStream` and `AsyncOutputStream` interfaces to exchange binary streams. Spring Data MongoDB adapts these interfaces to `Publisher<DataBuffer>`. Read more about `DataBuffer` in https://docs.spring.io/spring/docs/{springVersion}/spring-framework-reference/core.html#databuffers[Spring's reference documentation].
+NOTE: MongoDB's driver uses `AsyncInputStream` and `AsyncOutputStream` interfaces to exchange binary streams. Spring Data MongoDB adapts these interfaces to `Publisher<DataBuffer>`. Read more about `DataBuffer` in https://docs.spring.io/spring-framework/docs/{springVersion}/reference/html/core.html#databuffers[Spring's reference documentation].
 
 You can read files from the filesystem through either the `find(…)` or the `getResources(…)` methods. Let's have a look at the `find(…)` methods first. You can either find a single file or multiple files that match a `Query`. You can use the `GridFsCriteria` helper class to define queries. It provides static factory methods to encapsulate default metadata fields (such as `whereFilename()` and `whereContentType()`) or a custom one through `whereMetaData()`. The following example shows how to use `ReactiveGridFsTemplate` to query for files: