Fix issue where the Hystrix dashboard will not load

spring-cloud-netflix-hystrix-dashboard/src/main/java/org/springframework/cloud/netflix/hystrix/dashboard/HystrixDashboardConfiguration.java

@@ -21,17 +21,42 @@ import org.apache.http.params.HttpConnectionParams;
 import org.apache.http.params.HttpParams;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
+import org.springframework.boot.autoconfigure.freemarker.FreeMarkerAutoConfiguration;
 import org.springframework.boot.context.embedded.ServletRegistrationBean;
 import org.springframework.context.annotation.Bean;
 import org.springframework.context.annotation.Configuration;
+import org.springframework.ui.freemarker.SpringTemplateLoader;
+import org.springframework.web.servlet.view.freemarker.FreeMarkerConfigurer;
 
 /**
  * @author Dave Syer
+ * @author Roy Clarkson
  */
 @SuppressWarnings("deprecation")
 @Configuration
 public class HystrixDashboardConfiguration {
 
+	private static final String DEFAULT_TEMPLATE_LOADER_PATH = "classpath:/templates/";
+
+	private static final String DEFAULT_CHARSET = "UTF-8";
+
+
+	/**
+	 * Overrides Spring Boot's {@link FreeMarkerAutoConfiguration} to prefer using a
+	 * {@link SpringTemplateLoader} instead of the file system. This corrects an issue
+	 * where Spring Boot may use an empty 'templates' file resource to resolve templates
+	 * instead of the packaged Hystrix classpath templates.
+	 * @return FreeMarker configuration
+	 */
+	@Bean
+	public FreeMarkerConfigurer freeMarkerConfigurer() {
+		FreeMarkerConfigurer configurer = new FreeMarkerConfigurer();
+		configurer.setTemplateLoaderPaths(DEFAULT_TEMPLATE_LOADER_PATH);
+		configurer.setDefaultEncoding(DEFAULT_CHARSET);
+		configurer.setPreferFileSystemAccess(false);
+		return configurer;
+	}
+
 	@Bean
 	public ServletRegistrationBean proxyStreamServlet() {
 		return new ServletRegistrationBean(new ProxyStreamServlet(), "/proxy.stream");

spring-cloud-netflix-hystrix-dashboard/src/test/resources/templates/test.txt

+The presence of this templates directory tests the Spring Boot FreeMarker configuration 
\ No newline at end of file