add factory loader

src/test/java/ca/uhn/fhir/jpa/starter/ExampleServerDstu2IT.java

@@ -11,6 +11,7 @@ import org.junit.jupiter.api.Test;
 import org.junit.jupiter.api.extension.ExtendWith;
 import org.springframework.boot.test.context.SpringBootTest;
 import org.springframework.boot.web.server.LocalServerPort;
+import org.springframework.test.annotation.DirtiesContext;
 import org.springframework.test.context.junit.jupiter.SpringExtension;
 
 import static org.junit.jupiter.api.Assertions.assertEquals;