Add a comment about @WebServlet (GoogleCloudPlatform#692)

Author: lesv

appengine-java8/analytics/src/main/java/com/example/appengine/analytics/AnalyticsServlet.java

@@ -34,6 +34,7 @@
 
 // [START example]
 @SuppressWarnings("serial")
+// With @WebServlet annotation the webapp/WEB-INF/web.xml is no longer required.
 @WebServlet(name = "analytics", description = "Analytics: Send Analytics Event to Google Analytics",
     urlPatterns = "/analytics")
 public class AnalyticsServlet extends HttpServlet {

appengine-java8/appidentity/src/main/java/com/example/appengine/appidentity/IdentityServlet.java

@@ -26,6 +26,7 @@
 import javax.servlet.http.HttpServletResponse;
 
 @SuppressWarnings("serial")
+// With @WebServlet annotation the webapp/WEB-INF/web.xml is no longer required.
 @WebServlet(name = "appidentity", description = "AppIdentity: Get the Host Name",
     urlPatterns = "/appidentity/identity")
 public class IdentityServlet extends HttpServlet {

appengine-java8/appidentity/src/main/java/com/example/appengine/appidentity/SignForAppServlet.java

@@ -42,6 +42,7 @@
 import javax.servlet.http.HttpServletResponse;
 
 @SuppressWarnings("serial")
+// With @WebServlet annotation the webapp/WEB-INF/web.xml is no longer required.
 @WebServlet(name = "signforapp", description = "AppIdentity: Sign 'abcdefg'",
     urlPatterns = "/appidentity/sign")
 public class SignForAppServlet extends HttpServlet {

appengine-java8/appidentity/src/main/java/com/example/appengine/appidentity/UrlShortenerServlet.java

@@ -25,6 +25,7 @@
 import javax.servlet.http.HttpServletResponse;
 
 @SuppressWarnings("serial")
+// With @WebServlet annotation the webapp/WEB-INF/web.xml is no longer required.
 @WebServlet(name = "UrlShortener", description = "AppIdentity: Url Shortener",
     urlPatterns = "/appidentity/shorten")
 public class UrlShortenerServlet extends HttpServlet {

appengine-java8/cloudsql/src/main/java/com/example/appengine/cloudsql/CloudSqlServlet.java

@@ -37,6 +37,7 @@
 
 // [START example]
 @SuppressWarnings("serial")
+// With @WebServlet annotation the webapp/WEB-INF/web.xml is no longer required.
 @WebServlet(name = "CloudSQL", description = "CloudSQL: Write low order IP address to Cloud SQL",
     urlPatterns = "/cloudsql")
 public class CloudSqlServlet extends HttpServlet {

appengine-java8/gaeinfo/src/main/java/com/example/appengine/standard/GAEInfoServlet.java

@@ -35,6 +35,7 @@
 
 // [START example]
 @SuppressWarnings({"serial"})
+// With @WebServlet annotation the webapp/WEB-INF/web.xml is no longer required.
 @WebServlet(name = "GAEInfo", description = "GAEInfo: Write info about GAE Standard",
     urlPatterns = "/gaeinfo")
 //CHECKSTYLE:OFF

appengine-java8/images/src/main/java/com/example/appengine/images/ImagesServlet.java

@@ -43,6 +43,7 @@
 
 // [START example]
 @SuppressWarnings("serial")
+// With @WebServlet annotation the webapp/WEB-INF/web.xml is no longer required.
 @WebServlet(name = "images",
     description = "Images: Write an image to a bucket and display it in various sizes",
     urlPatterns = "/images")

appengine-java8/logs/src/main/java/com/example/appengine/logs/LogsServlet.java

@@ -33,6 +33,7 @@
 
 // Get request logs along with their app log lines and display them 5 at
 // a time, using a Next link to cycle through to the next 5.
+// With @WebServlet annotation the webapp/WEB-INF/web.xml is no longer required.
 @WebServlet(name = "logs", description = "Logs: Display 5 lines of the request log",
     urlPatterns = "/logs")
 public class LogsServlet extends HttpServlet {

appengine-java8/memcache/src/main/java/com/example/appengine/memcache/MemcacheAsyncCacheServlet.java

@@ -33,6 +33,7 @@
 import javax.servlet.http.HttpServletResponse;
 
 @SuppressWarnings("serial")
+// With @WebServlet annotation the webapp/WEB-INF/web.xml is no longer required.
 @WebServlet(name = "MemcacheAsync", description = "Memcache: Async Access",
     urlPatterns = "/memcache/async")
 public class MemcacheAsyncCacheServlet extends HttpServlet {

appengine-java8/memcache/src/main/java/com/example/appengine/memcache/MemcacheBestPracticeServlet.java

@@ -31,6 +31,7 @@
 
 // [START example]
 @SuppressWarnings("serial")
+// With @WebServlet annotation the webapp/WEB-INF/web.xml is no longer required.
 @WebServlet(name = "memcache", description = "Memcache: Best Practices",
     urlPatterns = "/memcache")
 public class MemcacheBestPracticeServlet extends HttpServlet {