Add support for SimpleDriverDataSource

This commit makes sure that DataSourceBuilder can configure
SimpleDriverDataSource by adding an alias for the driver's class name.

Closes gh-20220

Co-authored-by: Dmytro Nosan <dimanosan@gmail.com>

spring-boot-project/spring-boot/src/main/java/org/springframework/boot/jdbc/DataSourceBuilder.java

@@ -87,6 +87,7 @@ public final class DataSourceBuilder<T extends DataSource> {
 	private void bind(DataSource result) {
 		ConfigurationPropertySource source = new MapConfigurationPropertySource(this.properties);
 		ConfigurationPropertyNameAliases aliases = new ConfigurationPropertyNameAliases();
+		aliases.addAliases("driver-class-name", "driver-class");
 		aliases.addAliases("url", "jdbc-url");
 		aliases.addAliases("username", "user");
 		Binder binder = new Binder(source.withAliases(aliases));

spring-boot-project/spring-boot/src/test/java/org/springframework/boot/jdbc/DataSourceBuilderTests.java

@@ -26,9 +26,12 @@ import javax.sql.DataSource;
 
 import com.zaxxer.hikari.HikariDataSource;
 import org.apache.commons.dbcp2.BasicDataSource;
+import org.h2.Driver;
 import org.junit.jupiter.api.AfterEach;
 import org.junit.jupiter.api.Test;
 
+import org.springframework.jdbc.datasource.SimpleDriverDataSource;
+
 import static org.assertj.core.api.Assertions.assertThat;
 
 /**
@@ -74,6 +77,14 @@ class DataSourceBuilderTests {
 		assertThat(hikariDataSource).isInstanceOf(HikariDataSource.class);
 	}
 
+	@Test
+	void dataSourceCanBeCreatedWithSimpleDriverDataSource() {
+		this.dataSource = DataSourceBuilder.create().url("jdbc:h2:test").type(SimpleDriverDataSource.class).build();
+		assertThat(this.dataSource).isInstanceOf(SimpleDriverDataSource.class);
+		assertThat(((SimpleDriverDataSource) this.dataSource).getUrl()).isEqualTo("jdbc:h2:test");
+		assertThat(((SimpleDriverDataSource) this.dataSource).getDriver()).isInstanceOf(Driver.class);
+	}
+
 	final class HidePackagesClassLoader extends URLClassLoader {
 
 		private final String[] hiddenPackages;