Rename embedded servlet tests

Rename `spring-boot-integration-tests-embedded-servlet-container` to
`spring-boot-server-tests`.

See gh-9316

spring-boot-tests/spring-boot-integration-tests/spring-boot-server-tests/src/test/java/com/example/ResourceHandlingApplication.java

@@ -0,0 +1,72 @@
+/*
+ * Copyright 2012-2017 the original author or authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.example;
+
+import java.io.IOException;
+import java.net.URL;
+
+import javax.servlet.ServletException;
+import javax.servlet.http.HttpServlet;
+import javax.servlet.http.HttpServletRequest;
+import javax.servlet.http.HttpServletResponse;
+
+import org.springframework.boot.autoconfigure.SpringBootApplication;
+import org.springframework.boot.builder.SpringApplicationBuilder;
+import org.springframework.boot.system.EmbeddedServerPortFileWriter;
+import org.springframework.boot.web.servlet.ServletRegistrationBean;
+import org.springframework.context.annotation.Bean;
+
+/**
+ * Test application for verifying an embedded container's static resource handling.
+ *
+ * @author Andy Wilkinson
+ */
+@SpringBootApplication
+public class ResourceHandlingApplication {
+
+	public static void main(String[] args) {
+		new SpringApplicationBuilder(ResourceHandlingApplication.class)
+				.properties("server.port:0")
+				.listeners(new EmbeddedServerPortFileWriter("target/server.port"))
+				.run(args);
+	}
+
+	@Bean
+	public ServletRegistrationBean<?> resourceServletRegistration() {
+		ServletRegistrationBean<?> registration = new ServletRegistrationBean<HttpServlet>(
+				new HttpServlet() {
+
+					@Override
+					protected void doGet(HttpServletRequest req, HttpServletResponse resp)
+							throws ServletException, IOException {
+						URL resource = getServletContext()
+								.getResource(req.getQueryString());
+						if (resource == null) {
+							resp.sendError(404);
+						}
+						else {
+							resp.getWriter().println(resource);
+							resp.getWriter().flush();
+						}
+					}
+
+				});
+		registration.addUrlMappings("/servletContext");
+		return registration;
+	}
+
+}