title: Jetty Server always returning 404 with Handler
body: <p>I am working on a project and I am trying to create a server listening in the localhost address on port 8082 (I already have 8081 reserved with another server)   </p>
  
  <pre><code> public class Class2HTTPServer {
      public static void main(String[] args) {
          Class1 object1= new Class1 (300);// parameter I need for other stuff
          Class2 object2= new Class2 (300,object1,5); // parameters for other unrelated stuff
          int listen_on_port = 8082;
          Class2HTTPMessageHandler handler = new Class2HTTPMessageHandler (
              object2);
          String server_port_string = System.getProperty(SystemConstants.PROPERTY_KEY_SERVER_PORT);
          if(server_port_string != null) {
              try {
                  listen_on_port = Integer.parseInt(server_port_string);
                  listen_on_portfs = Integer.parseInt(server_port_string);
              } catch(NumberFormatException ex) {
                  System.err.println(ex);
              }
          }
          ComponentHTTPServerUtility.createServer(listen_on_port, handler);
  
      }
  }
  </code></pre>
  
  <p>This is the ComponentHTTPServerUtility class:</p>
  
  <pre><code>import java.net.InetAddress;
  import java.net.InetSocketAddress;
  import java.net.UnknownHostException;
  import org.eclipse.jetty.server.Server;
  import org.eclipse.jetty.server.handler.AbstractHandler;
  
  public class ComponentHTTPServerUtility {
      /**
       * Creates a server on the port and blocks the calling thread
       * @param port
       * @param handler
       * @return 
       */
      public static boolean createServer(int port, AbstractHandler handler) {
          Server server = new Server(port);
          if (handler != null) {
              server.setHandler(handler);
          }
  
          try {
              server.start();
              server.join();
          } catch (Exception ex) {
              ex.printStackTrace();
          }
          return true;
      }
  
      /**
       * Creates a server on the InetAddress and blocks the calling thread
       * @param ipAddress
       * @param port
       * @param handler
       * @return 
       */
      public static boolean createServer(String ipAddress, int port,
              AbstractHandler handler) {
          InetAddress inetIpAddress;
          InetSocketAddress address;
          Server server;
  
          if (ipAddress == null)
              return false;
  
          try {
              inetIpAddress = InetAddress.getByName(ipAddress);
              address = new InetSocketAddress(inetIpAddress, port);
          } catch (UnknownHostException ex) {
              ex.printStackTrace();
              return false;
          }
  
          server = new Server(address);
          if (handler != null) {
              server.setHandler(handler);
          }
  
          try {
              server.start();
              server.join();
          } catch (Exception ex) {
              ex.printStackTrace();
          }
          return true;
      }
  }
  </code></pre>
  
  <p>When I run the Server I get the following message in the console:</p>
  
  <pre><code>2015-01-19 13:13:49.451:INFO:oejs.Server:jetty-8.1.13.v20130916
  2015-01-19 13:13:49.501:INFO:oejs.AbstractConnector:Started SelectChannelConnector@0.0.0.0:8082
  </code></pre>
  
  <p>But If I go with my browser to :
      <a href="http://localhost:8082/" rel="noreferrer">http://localhost:8082/</a></p>
  
  <p>I get Error 404. However if I do the same with the other server(port 8081) I get a blank page indicating that the server is running.</p>
  
  <p>Sorry but I cannot get into any more specific. Any thoughts or suggestions would be highly appreciated. I have been stuck at this for hours.</p>
  
  <p>Thanks</p>
  
  <p>EDIT:</p>
  
  <p>These are the results i get for both servers after inserting the line: </p>
  
  <p>System.err.println(server.dump());</p>
  
  <p>Working one:</p>
  
  <pre><code>2015-01-19 15:37:05.600:INFO:oejs.Server:jetty-8.1.13.v20130916
  2015-01-19 15:37:05.651:INFO:oejs.AbstractConnector:Started SelectChannelConnector@0.0.0.0:8081
  org.eclipse.jetty.server.Server@2090b38d - STARTED
   +- com.project.server.Class1HTTPMessageHandler@35f3198f - STARTED
   |
   +- qtp831407528{8&lt;=6&lt;=8/254,0} - STARTED
   |   +- 10 qtp831407528-10 TIMED_WAITING @ sun.misc.Unsafe.park(Native Method) IDLE
   |   +- 11 qtp831407528-11 TIMED_WAITING @ sun.misc.Unsafe.park(Native Method) IDLE
   |   +- 12 qtp831407528-12 TIMED_WAITING @ sun.misc.Unsafe.park(Native Method) IDLE
   |   +- 13 qtp831407528-13 TIMED_WAITING @ sun.misc.Unsafe.park(Native Method) IDLE
   |   +- 14 qtp831407528-14 Acceptor0 SelectChannelConnector@0.0.0.0:8081 RUNNABLE @ sun.nio.ch.ServerSocketChannelImpl.accept0(Native Method)
   |   +- 15 qtp831407528-15 Selector0 RUNNABLE @ sun.nio.ch.WindowsSelectorImpl$SubSelector.poll0(Native Method)
   |   +- 16 qtp831407528-16 TIMED_WAITING @ sun.misc.Unsafe.park(Native Method) IDLE
   |   +- 17 qtp831407528-17 TIMED_WAITING @ sun.misc.Unsafe.park(Native Method) IDLE
   |
   +- SelectChannelConnector@0.0.0.0:8081 - STARTED
       +- PooledBuffers [0/1024@6144,0/1024@16384,0/1024@-]/PooledBuffers [0/1024@6144,0/1024@32768,0/1024@-] - STARTED
       +- org.eclipse.jetty.server.nio.SelectChannelConnector$ConnectorSelectorManager@42557280 - STARTED
       |   +- org.eclipse.jetty.io.nio.SelectorManager$SelectSet@77d05385 keys=0 selected=0 id=0
       |       +- org.eclipse.jetty.io.nio.SelectorManager$SelectSet.doSelect(SelectorManager.java:569)
       |       +- sun.nio.ch.WindowsSelectorImpl@4611dca9 keys=0
       +- sun.nio.ch.ServerSocketChannelImpl[/0:0:0:0:0:0:0:0:8081]
       +- qtp831407528{8&lt;=6&lt;=8/254,0} - STARTED
  </code></pre>
  
  <p>And these are from the non working one:</p>
  
  <pre><code>2015-01-19 15:37:23.231:INFO:oejs.Server:jetty-8.1.13.v20130916
  2015-01-19 15:37:23.280:INFO:oejs.AbstractConnector:Started SelectChannelConnector@0.0.0.0:8082
  org.eclipse.jetty.server.Server@183c97db - STARTED
   +- com.project.server.Class2HTTPMessageHandler@33767f84     - STARTED
   |
   +- qtp597321988{8&lt;=6&lt;=8/254,0} - STARTED
   |   +- 10 qtp597321988-10 Selector0 RUNNABLE @ sun.nio.ch.WindowsSelectorImpl$SubSelector.poll0(Native Method)
   |   +- 11 qtp597321988-11 TIMED_WAITING @ sun.misc.Unsafe.park(Native Method) IDLE
   |   +- 12 qtp597321988-12 TIMED_WAITING @ sun.misc.Unsafe.park(Native Method) IDLE
   |   +- 13 qtp597321988-13 TIMED_WAITING @ sun.misc.Unsafe.park(Native Method) IDLE
   |   +- 14 qtp597321988-14 Acceptor0 SelectChannelConnector@0.0.0.0:8082 RUNNABLE @ sun.nio.ch.ServerSocketChannelImpl.accept0(Native Method)
   |   +- 15 qtp597321988-15 TIMED_WAITING @ sun.misc.Unsafe.park(Native Method) IDLE
   |   +- 16 qtp597321988-16 TIMED_WAITING @ sun.misc.Unsafe.park(Native Method) IDLE
   |   +- 17 qtp597321988-17 TIMED_WAITING @ sun.misc.Unsafe.park(Native Method) IDLE
   |
   +- SelectChannelConnector@0.0.0.0:8082 - STARTED
       +- PooledBuffers [0/1024@6144,0/1024@16384,0/1024@-]/PooledBuffers [0/1024@6144,0/1024@32768,0/1024@-] - STARTED
       +- org.eclipse.jetty.server.nio.SelectChannelConnector$ConnectorSelectorManager@7f39425c - STARTED
       |   +- org.eclipse.jetty.io.nio.SelectorManager$SelectSet@833e745 keys=0 selected=0 id=0
       |       +- org.eclipse.jetty.io.nio.SelectorManager$SelectSet.doSelect(SelectorManager.java:569)
       |       +- sun.nio.ch.WindowsSelectorImpl@32787e9f keys=0
       +- sun.nio.ch.ServerSocketChannelImpl[/0:0:0:0:0:0:0:0:8082]
       +- qtp597321988{8&lt;=6&lt;=8/254,0} - STARTED
  </code></pre>
  
  <p>The basic handler declaration:</p>
  
  <pre><code>public class Class2HTTPMessageHandler extends AbstractHandler{
       private Class2 object= null;
  
      public Class2HTTPMessageHandler(Class2 obj){
          object= obj;
      }
      @SuppressWarnings("unchecked")
      public void handle(String target, Request baseRequest,
              HttpServletRequest request, HttpServletResponse response)
              throws IOException, ServletException {
          MessageTag messageTag;
  
          String  requestURI;
          Response fieldResponse = null;
          response.setContentType("text/html;charset=utf-8");
          response.setStatus(HttpServletResponse.SC_OK);
          requestURI = request.getRequestURI();
          if (!ComponentUtility.isEmpty(requestURI)
                  &amp;&amp; requestURI.toLowerCase().startsWith("/stock")) {
              messageTag = ComponentUtility.convertURItoMessageTag(requestURI
                  .substring(6)); // the request is from store
              // manager, more
              // sophisticated security
              // features could be added
              // here
          } else {
                  messageTag = ComponentUtility.convertURItoMessageTag(requestURI);
          }
          // the RequestURI before the switch
          if (messageTag == null) {
                  System.out.println("Unknown message tag");
          } else {
              switch (messageTag) {
                  // handling of various messages
              }
          }
      }
  }
  </code></pre>
  
  <p>I am trying to send to the server a message tag and this is the exception I get:</p>
  
  <pre><code> 2015-01-19 18:16:43.739:WARN:oejs.AbstractHttpConnection:/MESSAGETAG
   java.lang.NullPointerException
       at com.project.business.Class2.functionFoo(Class2.java:98)
      at com.project.server.Class2HTTPMessageHandler.handle(Class2HTTPMessageHandler.java:69)
       at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:116)
       at org.eclipse.jetty.server.Server.handle(Server.java:370)
       at org.eclipse.jetty.server.AbstractHttpConnection.handleRequest(AbstractHttpConnection.java:489)
       at org.eclipse.jetty.server.AbstractHttpConnection.content(AbstractHttpConnection.java:960)
       at org.eclipse.jetty.server.AbstractHttpConnection$RequestHandler.content(AbstractHttpConnection.java:1021)
       at org.eclipse.jetty.http.HttpParser.parseNext(HttpParser.java:865)
       at org.eclipse.jetty.http.HttpParser.parseAvailable(HttpParser.java:240)
       at org.eclipse.jetty.server.AsyncHttpConnection.handle(AsyncHttpConnection.java:82)
       at org.eclipse.jetty.io.nio.SelectChannelEndPoint.handle(SelectChannelEndPoint.java:668)
       at org.eclipse.jetty.io.nio.SelectChannelEndPoint$1.run(SelectChannelEndPoint.java:52)
       at org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:608)
       at org.eclipse.jetty.util.thread.QueuedThreadPool$3.run(QueuedThreadPool.java:543)
       at java.lang.Thread.run(Thread.java:745)
  </code></pre>