diff --git a/hibernate-core/src/test/java/org/hibernate/test/annotations/uniqueconstraint/MySQLDropConstraintThrowsExceptionTest.java b/hibernate-core/src/test/java/org/hibernate/test/annotations/uniqueconstraint/MySQLDropConstraintThrowsExceptionTest.java
index 8aa96b65b3..f80948f36a 100644
--- a/hibernate-core/src/test/java/org/hibernate/test/annotations/uniqueconstraint/MySQLDropConstraintThrowsExceptionTest.java
+++ b/hibernate-core/src/test/java/org/hibernate/test/annotations/uniqueconstraint/MySQLDropConstraintThrowsExceptionTest.java
@@ -16,6 +16,7 @@ import javax.persistence.GenerationType;
 import javax.persistence.Id;
 import javax.persistence.Table;
 
+import org.hibernate.SessionFactory;
 import org.hibernate.boot.Metadata;
 import org.hibernate.boot.MetadataSources;
 import org.hibernate.boot.registry.StandardServiceRegistry;
@@ -29,6 +30,7 @@ import org.hibernate.testing.TestForIssue;
 import org.hibernate.testing.junit4.BaseUnitTestCase;
 import org.hibernate.test.util.jdbc.PreparedStatementSpyConnectionProvider;
 import org.junit.After;
+import org.junit.Before;
 import org.junit.Test;
 
 import static org.junit.Assert.assertTrue;
@@ -40,14 +42,32 @@ import static org.junit.Assert.assertTrue;
 @RequiresDialect(MySQL5Dialect.class)
 public class MySQLDropConstraintThrowsExceptionTest extends BaseUnitTestCase {
 
-	@After
-	public void releaseResources() {
+	@Before
+	public void setUp() {
+		final StandardServiceRegistry serviceRegistry = new StandardServiceRegistryBuilder()
+				.enableAutoClose()
+				.applySetting( AvailableSettings.HBM2DDL_AUTO, "drop" )
+				.build();
 
+		SessionFactoryImplementor sessionFactory = null;
+
+		try {
+			final Metadata metadata = new MetadataSources( serviceRegistry )
+					.addAnnotatedClass( Customer.class )
+					.buildMetadata();
+			sessionFactory = (SessionFactoryImplementor) metadata.buildSessionFactory();
+		}
+		finally {
+			if ( sessionFactory != null ) {
+				sessionFactory.close();
+			}
+			StandardServiceRegistryBuilder.destroy( serviceRegistry );
+		}
 	}
 
-	@Test
-	public void testEnumTypeInterpretation() {
-		StandardServiceRegistry serviceRegistry = new StandardServiceRegistryBuilder()
+	@After
+	public void tearDown() {
+		final StandardServiceRegistry serviceRegistry = new StandardServiceRegistryBuilder()
 				.enableAutoClose()
 				.applySetting( AvailableSettings.HBM2DDL_AUTO, "drop" )
 				.build();
@@ -67,9 +87,13 @@ public class MySQLDropConstraintThrowsExceptionTest extends BaseUnitTestCase {
 			StandardServiceRegistryBuilder.destroy( serviceRegistry );
 		}
 
-		PreparedStatementSpyConnectionProvider connectionProvider = new PreparedStatementSpyConnectionProvider();
+	}
 
-		serviceRegistry = new StandardServiceRegistryBuilder()
+	@Test
+	public void testEnumTypeInterpretation() {
+		final PreparedStatementSpyConnectionProvider connectionProvider = new PreparedStatementSpyConnectionProvider();
+
+		final StandardServiceRegistry serviceRegistry = new StandardServiceRegistryBuilder()
 				.enableAutoClose()
 				.applySetting( AvailableSettings.HBM2DDL_AUTO, "update" )
 				.applySetting(
@@ -78,17 +102,19 @@ public class MySQLDropConstraintThrowsExceptionTest extends BaseUnitTestCase {
 				)
 				.build();
 
+		SessionFactory sessionFactory = null;
 		try {
 			final Metadata metadata = new MetadataSources( serviceRegistry )
 					.addAnnotatedClass( Customer.class )
 					.buildMetadata();
-			sessionFactory = (SessionFactoryImplementor) metadata.buildSessionFactory();
+			sessionFactory = metadata.buildSessionFactory();
 			List<String> alterStatements = connectionProvider.getExecuteStatements().stream()
-			.filter(
-				sql -> sql.toLowerCase().contains( "alter " )
-			).map( String::trim ).collect( Collectors.toList() );
-			assertTrue(alterStatements.get(0).matches( "alter table CUSTOMER\\s+drop index .*?" ));
-			assertTrue(alterStatements.get(1).matches( "alter table CUSTOMER\\s+add constraint .*? unique \\(CUSTOMER_ID\\)" ));
+					.filter(
+							sql -> sql.toLowerCase().contains( "alter " )
+					).map( String::trim ).collect( Collectors.toList() );
+			assertTrue( alterStatements.get( 0 ).matches( "alter table CUSTOMER\\s+drop index .*?" ) );
+			assertTrue( alterStatements.get( 1 )
+								.matches( "alter table CUSTOMER\\s+add constraint .*? unique \\(CUSTOMER_ID\\)" ) );
 		}
 		finally {
 			if ( sessionFactory != null ) {
diff --git a/hibernate-core/src/test/java/org/hibernate/test/jdbc/internal/BasicConnectionTest.java b/hibernate-core/src/test/java/org/hibernate/test/jdbc/internal/BasicConnectionTest.java
index a978cddd0e..9242a30a02 100644
--- a/hibernate-core/src/test/java/org/hibernate/test/jdbc/internal/BasicConnectionTest.java
+++ b/hibernate-core/src/test/java/org/hibernate/test/jdbc/internal/BasicConnectionTest.java
@@ -93,6 +93,17 @@ public class BasicConnectionTest extends BaseCoreFunctionalTestCase {
 		assertFalse( getResourceRegistry( jdbcCoord ).hasRegisteredResources() );
 	}
 
+	@Override
+	protected void cleanupTest() throws Exception {
+		try (Session session = openSession()) {
+			session.doWork( connection -> {
+				final Statement stmnt = connection.createStatement();
+
+				stmnt.execute( getDialect().getDropTableString( "SANDBOX_JDBC_TST" ) );
+			} );
+		}
+	}
+
 	private ResourceRegistry getResourceRegistry(JdbcCoordinator jdbcCoord) {
 		return jdbcCoord.getResourceRegistry();
 	}
diff --git a/hibernate-core/src/test/java/org/hibernate/test/jdbc/internal/BatchingTest.java b/hibernate-core/src/test/java/org/hibernate/test/jdbc/internal/BatchingTest.java
index 4b0990eedf..b64c79778d 100644
--- a/hibernate-core/src/test/java/org/hibernate/test/jdbc/internal/BatchingTest.java
+++ b/hibernate-core/src/test/java/org/hibernate/test/jdbc/internal/BatchingTest.java
@@ -260,4 +260,15 @@ public class BatchingTest extends BaseCoreFunctionalTestCase implements BatchKey
 		session.close();
 	}
 
+	@Override
+	protected void cleanupTest() throws Exception {
+		try (Session session = openSession()) {
+			session.doWork( connection -> {
+				final Statement stmnt = connection.createStatement();
+
+				stmnt.execute( getDialect().getDropTableString( "SANDBOX_JDBC_TST" ) );
+			} );
+		}
+	}
+
 }
diff --git a/hibernate-core/src/test/java/org/hibernate/test/schemaupdate/SequenceReadingTest.java b/hibernate-core/src/test/java/org/hibernate/test/schemaupdate/SequenceReadingTest.java
index dabaef5895..e616d3a0f5 100644
--- a/hibernate-core/src/test/java/org/hibernate/test/schemaupdate/SequenceReadingTest.java
+++ b/hibernate-core/src/test/java/org/hibernate/test/schemaupdate/SequenceReadingTest.java
@@ -23,7 +23,9 @@ import org.hibernate.tool.schema.TargetType;
 import org.hibernate.tool.schema.extract.internal.SequenceInformationExtractorNoOpImpl;
 import org.hibernate.tool.schema.extract.spi.SequenceInformationExtractor;
 
+import org.hibernate.testing.RequiresDialect;
 import org.hibernate.testing.TestForIssue;
+import org.hibernate.testing.junit4.BaseCoreFunctionalTestCase;
 import org.junit.Test;
 
 /**
@@ -34,7 +36,8 @@ import org.junit.Test;
  * @see
  */
 @TestForIssue( jiraKey = "HHH-9745" )
-public class SequenceReadingTest {
+@RequiresDialect( H2Dialect.class )
+public class SequenceReadingTest extends BaseCoreFunctionalTestCase {
 
 	@Test
 	public void testSequenceReading() {