[SPARK-1377] Upgrade Jetty to 8.1.14v20131031

Previous version was 7.6.8v20121106. The only difference between Jetty 7 and Jetty 8 is that the former uses Servlet API 2.5, while the latter uses Servlet API 3.0.

Author: Andrew Or <andrewor14@gmail.com>

Closes #280 from andrewor14/jetty-upgrade and squashes the following commits:

dd57104 [Andrew Or] Merge github.com:apache/spark into jetty-upgrade
e75fa85 [Andrew Or] Upgrade Jetty to 8.1.14v20131031

Author: andrewor14

core/src/main/scala/org/apache/spark/ui/JettyUtils.scala

@@ -18,13 +18,14 @@
 package org.apache.spark.ui
 
 import java.net.{InetSocketAddress, URL}
+import javax.servlet.DispatcherType
 import javax.servlet.http.{HttpServlet, HttpServletRequest, HttpServletResponse}
 
 import scala.annotation.tailrec
 import scala.util.{Failure, Success, Try}
 import scala.xml.Node
 
-import org.eclipse.jetty.server.{DispatcherType, Server}
+import org.eclipse.jetty.server.Server
 import org.eclipse.jetty.server.handler._
 import org.eclipse.jetty.servlet._
 import org.eclipse.jetty.util.thread.QueuedThreadPool

pom.xml

@@ -192,22 +192,22 @@
       <dependency>
         <groupId>org.eclipse.jetty</groupId>
         <artifactId>jetty-util</artifactId>
-        <version>7.6.8.v20121106</version>
+        <version>8.1.14.v20131031</version>
       </dependency>
       <dependency>
         <groupId>org.eclipse.jetty</groupId>
         <artifactId>jetty-security</artifactId>
-        <version>7.6.8.v20121106</version>
+        <version>8.1.14.v20131031</version>
       </dependency>
       <dependency>
         <groupId>org.eclipse.jetty</groupId>
         <artifactId>jetty-plus</artifactId>
-        <version>7.6.8.v20121106</version>
+        <version>8.1.14.v20131031</version>
       </dependency>
       <dependency>
         <groupId>org.eclipse.jetty</groupId>
         <artifactId>jetty-server</artifactId>
-        <version>7.6.8.v20121106</version>
+        <version>8.1.14.v20131031</version>
       </dependency>
       <dependency>
         <groupId>com.google.guava</groupId>

project/SparkBuild.scala

@@ -248,13 +248,13 @@ object SparkBuild extends Build {
     */
 
     libraryDependencies ++= Seq(
-        "io.netty"          % "netty-all"       % "4.0.17.Final",
-        "org.eclipse.jetty" % "jetty-server"    % "7.6.8.v20121106",
-        "org.eclipse.jetty" % "jetty-util" % "7.6.8.v20121106",
-        "org.eclipse.jetty" % "jetty-plus" % "7.6.8.v20121106",
-        "org.eclipse.jetty" % "jetty-security" % "7.6.8.v20121106",
+        "io.netty"          % "netty-all"      % "4.0.17.Final",
+        "org.eclipse.jetty" % "jetty-server"   % "8.1.14.v20131031",
+        "org.eclipse.jetty" % "jetty-util"     % "8.1.14.v20131031",
+        "org.eclipse.jetty" % "jetty-plus"     % "8.1.14.v20131031",
+        "org.eclipse.jetty" % "jetty-security" % "8.1.14.v20131031",
         /** Workaround for SPARK-959. Dependency used by org.eclipse.jetty. Fixed in ivy 2.3.0. */
-        "org.eclipse.jetty.orbit" % "javax.servlet" % "2.5.0.v201103041518" artifacts Artifact("javax.servlet", "jar", "jar"),
+        "org.eclipse.jetty.orbit" % "javax.servlet" % "3.0.0.v201112011016" artifacts Artifact("javax.servlet", "jar", "jar"),
         "org.scalatest"    %% "scalatest"       % "1.9.1"  % "test",
         "org.scalacheck"   %% "scalacheck"      % "1.10.0" % "test",
         "com.novocode"      % "junit-interface" % "0.10"   % "test",