Fix verify statements in tests

spring-boot-project/spring-boot/src/test/java/org/springframework/boot/web/servlet/server/AbstractServletWebServerFactoryTests.java

@@ -118,6 +118,7 @@ import static org.hamcrest.CoreMatchers.notNullValue;
 import static org.junit.Assert.fail;
 import static org.mockito.ArgumentMatchers.any;
 import static org.mockito.BDDMockito.given;
+import static org.mockito.Mockito.atLeastOnce;
 import static org.mockito.Mockito.inOrder;
 import static org.mockito.Mockito.mock;
 import static org.mockito.Mockito.verify;
@@ -619,8 +620,8 @@ public abstract class AbstractServletWebServerFactoryTests {
 				httpClient);
 		assertThat(getResponse(getLocalUrl("https", "/test.txt"), requestFactory))
 				.isEqualTo("test");
-		verify(sslStoreProvider).getKeyStore();
-		verify(sslStoreProvider).getTrustStore();
+		verify(sslStoreProvider, atLeastOnce()).getKeyStore();
+		verify(sslStoreProvider, atLeastOnce()).getTrustStore();
 	}
 
 	@Test