Add a comment about @WebServlet (#692)

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 {

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

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

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

@@ -32,6 +32,7 @@
 
 // [START example]
 @SuppressWarnings("serial")
+// With @WebServlet annotation the webapp/WEB-INF/web.xml is no longer required.
 @WebServlet(name = "MemcacheSync", description = "Memcache: Synchronous",
     urlPatterns = "/memcache/sync")
 public class MemcacheSyncCacheServlet extends HttpServlet {

appengine-java8/oauth2/src/main/java/com/example/appengine/HelloServlet.java

@@ -31,6 +31,7 @@
 
 // [START example]
 @SuppressWarnings("serial")
+// With @WebServlet annotation the webapp/WEB-INF/web.xml is no longer required.
 @WebServlet(name = "oauth2", description = "Oauth2: restricted helloWorld",
     urlPatterns = "/oauth2hello")
 public class HelloServlet extends HttpServlet {

appengine-java8/oauth2/src/main/java/com/example/appengine/Oauth2Filter.java

@@ -39,6 +39,7 @@
  *  <p>Note - this is to demonstrate the OAuth2 APIs, as it is possible to lockdown some
  *  of your app's URL's using cloud console by adding service accounts to the project.</p>
  */
+// With @WebFilter annotation the webapp/WEB-INF/web.xml is no longer required.
 @WebFilter(urlPatterns = "/oauth2hello")
 public class Oauth2Filter implements Filter {
 

appengine-java8/remote-server/src/main/java/com/example/appengine/remote/RemoteServlet.java

@@ -26,6 +26,7 @@
 
 // [START example]
 @SuppressWarnings("serial")
+// With @WebServlet annotation the webapp/WEB-INF/web.xml is no longer required.
 @WebServlet(name = "remote", description = "Remote: yet another HelloWorld.",
     urlPatterns = "/remote")
 public class RemoteServlet extends HttpServlet {

appengine-java8/requests/src/main/java/com/example/appengine/requests/LoggingServlet.java

@@ -23,6 +23,7 @@
 import javax.servlet.http.HttpServletResponse;
 
 // [START simple_logging_example]
+// With @WebServlet annotation the webapp/WEB-INF/web.xml is no longer required.
 @WebServlet(name = "RequestLogging", description = "Requests: Logging example",
     urlPatterns = "/requests/log")
 public class LoggingServlet extends HttpServlet {
@@ -39,6 +40,6 @@ public void doGet(HttpServletRequest req, HttpServletResponse resp)
     resp.getWriter().println("Check logs for results");
     // [END_EXCLUDE]
   }
-} 
+}
 // [END simple_logging_example]
 

appengine-java8/requests/src/main/java/com/example/appengine/requests/RequestsServlet.java

@@ -22,6 +22,7 @@
 import javax.servlet.http.HttpServletResponse;
 
 // [START simple_request_example]
+// With @WebServlet annotation the webapp/WEB-INF/web.xml is no longer required.
 @WebServlet(name = "requests", description = "Requests: Trivial request",
     urlPatterns = "/requests")
 public class RequestsServlet extends HttpServlet {

appengine-java8/taskqueues-deferred/src/main/java/com/google/cloud/taskqueue/samples/DeferSampleServlet.java

@@ -36,6 +36,7 @@
  * interface to background a task on the AppEngine task queues,
  * without needing to create a separate URL handler.
  */
+// With @WebServlet annotation the webapp/WEB-INF/web.xml is no longer required.
 @WebServlet(name = "TasksDefer", description = "TaskQueues: Defer a task",
     urlPatterns = "/taskqueues/defer")
 public class DeferSampleServlet extends HttpServlet {

appengine-java8/taskqueues-pull/src/main/java/com/example/taskqueue/TaskqueueServlet.java

@@ -35,6 +35,7 @@
  * Form Handling Servlet -- takes the form submission from /src/main/webapp/taskqueues-pull.jsp to
  * add and delete tasks.
  */
+// With @WebServlet annotation the webapp/WEB-INF/web.xml is no longer required.
 @WebServlet(name = "TaskPull", description = "TaskQueues: Process some queues",
     urlPatterns = "/taskqueues/queue")
 public class TaskqueueServlet extends HttpServlet {

appengine-java8/taskqueues-push/src/main/java/com/example/appengine/taskqueue/push/Enqueue.java

@@ -28,6 +28,7 @@
 
 // [START enqueue]
 // The Enqueue servlet should be mapped to the "/enqueue" URL.
+// With @WebServlet annotation the webapp/WEB-INF/web.xml is no longer required.
 @WebServlet(name = "TaskEnque", description = "taskqueue: Enqueue a job with a key",
     urlPatterns = "/taskqueues/enqueue")
 public class Enqueue extends HttpServlet {

appengine-java8/taskqueues-push/src/main/java/com/example/appengine/taskqueue/push/Worker.java

@@ -25,6 +25,7 @@
 
 //  [START worker]
 // The Worker servlet should be mapped to the "/worker" URL.
+// With @WebServlet annotation the webapp/WEB-INF/web.xml is no longer required.
 @WebServlet(name = "TaskWorker", description = "TaskQueues: worker",
     urlPatterns = "/taskqueues/worker")
 public class Worker extends HttpServlet {

appengine-java8/urlfetch/src/main/java/com/example/appengine/UrlFetchServlet.java

@@ -31,6 +31,7 @@
 import javax.servlet.http.HttpServletResponse;
 
 @SuppressWarnings("serial")
+// With @WebServlet annotation the webapp/WEB-INF/web.xml is no longer required.
 @WebServlet(name = "URLFetch", description = "URLFetch: Write low order IP address to Cloud SQL",
     urlPatterns = "/urlfetch")
 public class UrlFetchServlet extends HttpServlet {

appengine-java8/users/src/main/java/com/example/appengine/users/UsersServlet.java

@@ -26,6 +26,7 @@
 import javax.servlet.http.HttpServletRequest;
 import javax.servlet.http.HttpServletResponse;
 
+// With @WebServlet annotation the webapp/WEB-INF/web.xml is no longer required.
 @WebServlet(name = "UserAPI", description = "UserAPI: Login / Logout with UserService",
     urlPatterns = "/userapi")
 public class UsersServlet extends HttpServlet {