DBZ-1401 Database blocked after test

debezium-connector-sqlserver/src/test/java/io/debezium/connector/sqlserver/TablesWithoutPrimaryKeyIT.java

@@ -9,6 +9,7 @@
 import java.sql.SQLException;
 
 import org.fest.assertions.Assertions;
+import org.junit.After;
 import org.junit.Before;
 import org.junit.Test;
 
@@ -45,6 +46,13 @@ public void before() throws SQLException {
         Testing.Files.delete(TestHelper.DB_HISTORY_PATH);
     }
 
+    @After
+    public void after() throws SQLException {
+        if (connection != null) {
+            connection.close();
+        }
+    }
+
     @Test
     public void shouldProcessFromSnapshot() throws Exception {
         connection = TestHelper.testConnection();