Add IBM DB2 integration tests

Resolves: #1482

gradle/dependency-management.gradle

@@ -16,6 +16,7 @@ dependencyManagement {
 		}
 
 		dependency 'com.h2database:h2:1.4.199'
+		dependency 'com.ibm.db2:jcc:11.5.0.0'
 		dependency 'com.microsoft.sqlserver:mssql-jdbc:7.2.2.jre8'
 		dependency 'com.zaxxer:HikariCP:3.3.1'
 		dependency 'edu.umd.cs.mtc:multithreadedtc:1.01'

spring-session-jdbc/spring-session-jdbc.gradle

@@ -14,6 +14,7 @@ dependencies {
 	testRuntime "org.junit.jupiter:junit-jupiter-engine"
 
 	integrationTestCompile "com.h2database:h2"
+	integrationTestCompile "com.ibm.db2:jcc"
 	integrationTestCompile "com.microsoft.sqlserver:mssql-jdbc"
 	integrationTestCompile "com.zaxxer:HikariCP"
 	integrationTestCompile "mysql:mysql-connector-java"
@@ -21,6 +22,7 @@ dependencies {
 	integrationTestCompile "org.hsqldb:hsqldb"
 	integrationTestCompile "org.mariadb.jdbc:mariadb-java-client"
 	integrationTestCompile "org.postgresql:postgresql"
+	integrationTestCompile "org.testcontainers:db2"
 	integrationTestCompile "org.testcontainers:mariadb"
 	integrationTestCompile "org.testcontainers:mssqlserver"
 	integrationTestCompile "org.testcontainers:mysql"

spring-session-jdbc/src/integration-test/java/org/springframework/session/jdbc/DatabaseContainers.java

@@ -16,6 +16,7 @@
 
 package org.springframework.session.jdbc;
 
+import org.testcontainers.containers.Db2Container;
 import org.testcontainers.containers.JdbcDatabaseContainer;
 import org.testcontainers.containers.MSSQLServerContainer;
 import org.testcontainers.containers.MariaDBContainer;
@@ -33,6 +34,10 @@ final class DatabaseContainers {
 	private DatabaseContainers() {
 	}
 
+	static Db211Container db211() {
+		return new Db211Container();
+	}
+
 	static MariaDBContainer mariaDb5() {
 		return new MariaDb5Container();
 	}
@@ -69,6 +74,14 @@ final class DatabaseContainers {
 		return new SqlServer2017Container();
 	}
 
+	private static class Db211Container extends Db2Container {
+
+		Db211Container() {
+			super("ibmcom/db2:11.5.0.0a");
+		}
+
+	}
+
 	private static class MariaDb5Container extends MariaDBContainer<MariaDb5Container> {
 
 		MariaDb5Container() {

spring-session-jdbc/src/integration-test/java/org/springframework/session/jdbc/DatabasePopulators.java

@@ -30,6 +30,10 @@ final class DatabasePopulators {
 	private DatabasePopulators() {
 	}
 
+	static ResourceDatabasePopulator db2() {
+		return new ResourceDatabasePopulator(new ClassPathResource("org/springframework/session/jdbc/schema-db2.sql"));
+	}
+
 	static ResourceDatabasePopulator mySql() {
 		return new ResourceDatabasePopulator(
 				new ClassPathResource("org/springframework/session/jdbc/schema-mysql.sql"));

spring-session-jdbc/src/integration-test/java/org/springframework/session/jdbc/Db211JdbcOperationsSessionRepositoryITests.java

@@ -0,0 +1,57 @@
+/*
+ * Copyright 2014-2019 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.session.jdbc;
+
+import org.junit.jupiter.api.extension.ExtendWith;
+import org.testcontainers.containers.Db2Container;
+
+import org.springframework.context.annotation.Bean;
+import org.springframework.context.annotation.Configuration;
+import org.springframework.jdbc.datasource.init.ResourceDatabasePopulator;
+import org.springframework.test.context.ContextConfiguration;
+import org.springframework.test.context.junit.jupiter.SpringExtension;
+import org.springframework.test.context.web.WebAppConfiguration;
+
+/**
+ * Integration tests for {@link JdbcOperationsSessionRepository} using IBM DB2 11.x
+ * database.
+ *
+ * @author Vedran Pavic
+ */
+@ExtendWith(SpringExtension.class)
+@WebAppConfiguration
+@ContextConfiguration
+class Db211JdbcOperationsSessionRepositoryITests extends AbstractContainerJdbcOperationsSessionRepositoryITests {
+
+	@Configuration
+	static class Config extends BaseContainerConfig {
+
+		@Bean
+		public Db2Container databaseContainer() {
+			Db2Container databaseContainer = DatabaseContainers.db211();
+			databaseContainer.start();
+			return databaseContainer;
+		}
+
+		@Bean
+		public ResourceDatabasePopulator databasePopulator() {
+			return DatabasePopulators.db2();
+		}
+
+	}
+
+}

spring-session-jdbc/src/integration-test/resources/container-license-acceptance.txt

@@ -1 +1,2 @@
+ibmcom/db2:11.5.0.0a
 mcr.microsoft.com/mssql/server:2017-CU15