Suppress build warnings in tests

spring-web/src/test/java/org/springframework/http/converter/json/Jackson2ObjectMapperFactoryBeanTests.java

@@ -245,6 +245,7 @@ public class Jackson2ObjectMapperFactoryBeanTests {
 	}
 
 	@Test // SPR-12634
+	@SuppressWarnings("unchecked")
 	public void customizeDefaultModulesWithModuleClass() throws JsonProcessingException, UnsupportedEncodingException {
 		this.factory.setModulesToInstall(CustomIntegerModule.class);
 		this.factory.afterPropertiesSet();

spring-webmvc/src/test/java/org/springframework/web/servlet/support/DispatcherServletInitializerTests.java

@@ -138,6 +138,7 @@ public class DispatcherServletInitializerTests {
 	private static class MyBean {
 	}
 
+	@SuppressWarnings("serial")
 	private static class MyDispatcherServlet extends DispatcherServlet {
 		public MyDispatcherServlet(WebApplicationContext webApplicationContext) {
 			super(webApplicationContext);