Remove Spring Cloud Connectors auto-config/starter

The Spring Cloud Connectors project has been deprecated in favor of the
Java CFEnv project. The Boot auto-configuration and starter that support
Connectors were deprecated in Boot 2.2.

This commit removes the Connectors auto-configuration, starter,
and dependency management.

Closes gh-19798

spring-boot-project/spring-boot-autoconfigure/build.gradle

@@ -140,7 +140,6 @@ dependencies {
 	optional 'org.springframework.session:spring-session-jdbc'
 	optional 'org.springframework.amqp:spring-rabbit'
 	optional 'org.springframework.kafka:spring-kafka'
-	optional 'org.springframework.cloud:spring-cloud-spring-service-connector'
 	optional 'org.springframework.ws:spring-ws-core'
 	optional 'org.thymeleaf:thymeleaf'
 	optional 'org.thymeleaf:thymeleaf-spring5'

spring-boot-project/spring-boot-autoconfigure/src/main/java/org/springframework/boot/autoconfigure/cloud/CloudServiceConnectorsAutoConfiguration.java

-/*
- * Copyright 2012-2019 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.boot.autoconfigure.cloud;
-
-import org.apache.commons.logging.Log;
-import org.apache.commons.logging.LogFactory;
-
-import org.springframework.boot.autoconfigure.AutoConfigureOrder;
-import org.springframework.boot.autoconfigure.EnableAutoConfiguration;
-import org.springframework.boot.autoconfigure.condition.ConditionalOnClass;
-import org.springframework.boot.autoconfigure.condition.ConditionalOnMissingBean;
-import org.springframework.cloud.Cloud;
-import org.springframework.cloud.app.ApplicationInstanceInfo;
-import org.springframework.cloud.config.java.CloudScan;
-import org.springframework.cloud.config.java.CloudScanConfiguration;
-import org.springframework.context.annotation.Configuration;
-import org.springframework.context.annotation.Import;
-import org.springframework.context.annotation.Profile;
-import org.springframework.core.Ordered;
-
-/**
- * {@link EnableAutoConfiguration Auto-configuration} for Spring Cloud Service Connectors.
- * <p>
- * Activates when there is no bean of type {@link Cloud} and the "cloud" profile is
- * active.
- * <p>
- * Once in effect, the auto-configuration is the equivalent of adding the
- * {@link CloudScan @CloudScan} annotation in one of the configuration file. Specifically,
- * it adds a bean for each service bound to the application and one for
- * {@link ApplicationInstanceInfo}.
- *
- * @author Ramnivas Laddad
- * @since 2.1.0
- */
-@Configuration(proxyBeanMethods = false)
-@Profile("cloud")
-@AutoConfigureOrder(CloudServiceConnectorsAutoConfiguration.ORDER)
-@ConditionalOnClass(CloudScanConfiguration.class)
-@ConditionalOnMissingBean(Cloud.class)
-@Import(CloudScanConfiguration.class)
-public class CloudServiceConnectorsAutoConfiguration {
-
-	// Cloud configuration needs to happen early (before data, mongo etc.)
-	public static final int ORDER = Ordered.HIGHEST_PRECEDENCE + 20;
-
-	private static final Log logger = LogFactory.getLog(CloudServiceConnectorsAutoConfiguration.class);
-
-	public CloudServiceConnectorsAutoConfiguration() {
-		logger.warn("Support for Spring Cloud Connectors has been deprecated in favor of Java CFEnv");
-	}
-
-}

spring-boot-project/spring-boot-autoconfigure/src/main/java/org/springframework/boot/autoconfigure/cloud/package-info.java

-/*
- * Copyright 2012-2019 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.
- */
-
-/**
- * Auto-configuration for Spring Cloud Service Connectors.
- */
-package org.springframework.boot.autoconfigure.cloud;

spring-boot-project/spring-boot-autoconfigure/src/main/resources/META-INF/spring.factories

@@ -25,7 +25,6 @@ org.springframework.boot.autoconfigure.amqp.RabbitAutoConfiguration,\
 org.springframework.boot.autoconfigure.batch.BatchAutoConfiguration,\
 org.springframework.boot.autoconfigure.cache.CacheAutoConfiguration,\
 org.springframework.boot.autoconfigure.cassandra.CassandraAutoConfiguration,\
-org.springframework.boot.autoconfigure.cloud.CloudServiceConnectorsAutoConfiguration,\
 org.springframework.boot.autoconfigure.context.ConfigurationPropertiesAutoConfiguration,\
 org.springframework.boot.autoconfigure.context.MessageSourceAutoConfiguration,\
 org.springframework.boot.autoconfigure.context.PropertyPlaceholderAutoConfiguration,\

spring-boot-project/spring-boot-autoconfigure/src/test/java/org/springframework/boot/autoconfigure/cloud/CloudServiceConnectorsAutoConfigurationTests.java

-/*
- * Copyright 2012-2019 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.boot.autoconfigure.cloud;
-
-import java.util.ArrayList;
-import java.util.Collection;
-import java.util.List;
-
-import org.junit.jupiter.api.Test;
-
-import org.springframework.boot.autoconfigure.TestAutoConfigurationSorter;
-import org.springframework.boot.autoconfigure.data.jpa.JpaRepositoriesAutoConfiguration;
-import org.springframework.boot.autoconfigure.data.mongo.MongoRepositoriesAutoConfiguration;
-import org.springframework.boot.autoconfigure.jdbc.DataSourceAutoConfiguration;
-import org.springframework.boot.autoconfigure.mongo.MongoAutoConfiguration;
-import org.springframework.core.type.classreading.CachingMetadataReaderFactory;
-
-import static org.assertj.core.api.Assertions.assertThat;
-
-/**
- * Tests for {@link CloudServiceConnectorsAutoConfiguration}.
- *
- * @author Phillip Webb
- */
-class CloudServiceConnectorsAutoConfigurationTests {
-
-	@Test
-	void testOrder() {
-		TestAutoConfigurationSorter sorter = new TestAutoConfigurationSorter(new CachingMetadataReaderFactory());
-		Collection<String> classNames = new ArrayList<>();
-		classNames.add(MongoAutoConfiguration.class.getName());
-		classNames.add(DataSourceAutoConfiguration.class.getName());
-		classNames.add(MongoRepositoriesAutoConfiguration.class.getName());
-		classNames.add(JpaRepositoriesAutoConfiguration.class.getName());
-		classNames.add(CloudServiceConnectorsAutoConfiguration.class.getName());
-		List<String> ordered = sorter.getInPriorityOrder(classNames);
-		assertThat(ordered.get(0)).isEqualTo(CloudServiceConnectorsAutoConfiguration.class.getName());
-	}
-
-}

spring-boot-project/spring-boot-dependencies/build.gradle

@@ -1437,7 +1437,6 @@ bom {
 				'spring-boot-starter-artemis',
 				'spring-boot-starter-batch',
 				'spring-boot-starter-cache',
-				'spring-boot-starter-cloud-connectors',
 				'spring-boot-starter-data-cassandra',
 				'spring-boot-starter-data-cassandra-reactive',
 				'spring-boot-starter-data-couchbase',
@@ -1600,17 +1599,6 @@ bom {
 			]
 		}
 	}
-	library('Spring Cloud Connectors', '2.0.7.RELEASE') {
-		group('org.springframework.cloud') {
-			modules = [
-				'spring-cloud-cloudfoundry-connector',
-				'spring-cloud-connectors-core',
-				'spring-cloud-heroku-connector',
-				'spring-cloud-localconfig-connector',
-				'spring-cloud-spring-service-connector'
-			]
-		}
-	}
 	library('Spring Data Releasetrain', 'Neumann-M2') {
 		group('org.springframework.data') {
 			imports = [

spring-boot-project/spring-boot-starters/spring-boot-starter-cloud-connectors/build.gradle

-plugins {
-	id 'org.springframework.boot.starter'
-}
-
-description = "Starter for using Spring Cloud Connectors which simplifies connecting to services in cloud platforms like Cloud Foundry and Heroku"
-
-dependencies {
-	api platform(project(':spring-boot-project:spring-boot-dependencies'))
-	api project(':spring-boot-project:spring-boot-starters:spring-boot-starter')
-	api 'org.springframework.cloud:spring-cloud-spring-service-connector'
-	api 'org.springframework.cloud:spring-cloud-cloudfoundry-connector'
-	api 'org.springframework.cloud:spring-cloud-heroku-connector'
-	api 'org.springframework.cloud:spring-cloud-localconfig-connector'
-}