Add concourse pipeline for Windows

Closes gh-15553

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

@@ -0,0 +1,42 @@
+/*
+ * Copyright 2012-2019 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
+ *
+ *      https://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 org.eclipse.jetty.server.handler.ContextHandler;
+
+import org.springframework.boot.web.embedded.jetty.JettyServerCustomizer;
+import org.springframework.context.annotation.Bean;
+import org.springframework.context.annotation.Configuration;
+
+/**
+ * {@link JettyServerCustomizer} that approves all aliases (Used for Windows CI on
+ * Concourse).
+ *
+ * @author Madhura Bhave
+ */
+@Configuration
+public class JettyServerCustomizerConfig {
+
+	@Bean
+	public JettyServerCustomizer jettyServerCustomizer() {
+		return (server) -> {
+			ContextHandler handler = (ContextHandler) server.getHandler();
+			handler.addAliasCheck(new ContextHandler.ApproveAliases());
+		};
+	}
+
+}

spring-boot-tests/spring-boot-integration-tests/spring-boot-server-tests/src/test/java/org/springframework/boot/context/embedded/ApplicationBuilder.java

@@ -126,6 +126,12 @@ class ApplicationBuilder {
 		examplePackage.mkdirs();
 		FileCopyUtils.copy(new File("src/test/java/com/example/ResourceHandlingApplication.java"),
 				new File(examplePackage, "ResourceHandlingApplication.java"));
+		// To allow aliased resources on Concourse Windows CI (See gh-15553) to be served
+		// as static resources.
+		if (this.container.equals("jetty")) {
+			FileCopyUtils.copy(new File("src/test/java/com/example/JettyServerCustomizerConfig.java"),
+					new File(examplePackage, "JettyServerCustomizerConfig.java"));
+		}
 		if ("war".equals(this.packaging)) {
 			File srcMainWebapp = new File(appFolder, "src/main/webapp");
 			srcMainWebapp.mkdirs();