Hello World Servlet Not Working

Hi,
I am using apache and eclipse for the first time. I am running into an issue. When I create the HelloServlet.java class, a yellow icon with a question mark appears on top on my web-inf, package, and class. I also notice a yellow line appears under the class name HelloWorld. I place the curso on top of it, and I saw the message below:
�The serializable class HelloServlet does not declare a static final serialVersionUID field of type long�. I am not sure what I did wrong. When I paste the url in the browser, it does not show the message. It shows me an error 404.
I am using eclipse 3 with tomcat 6 and java 5.
P.S. I started tomcat, and all the jsp and html samples are working fine.

I am getting the error message below when I compile my hello World Servlet.
Dec 13, 2007 11:45:54 AM org.apache.catalina.core.AprLifecycleListener init
INFO: The Apache Tomcat Native library which allows optimal performance in production environments was not found on the java.library.path: C:\Program Files\Java\jdk1.5.0_14\bin;.;C:\WINDOWS\system32;C:\WINDOWS;C:\Program Files\Java\jre1.6.0_03\bin\client;C:\Program Files\Java\jre1.6.0_03\bin;C:\WINDOWS\system32;C:\WINDOWS;C:\WINDOWS\System32\Wbem;C:\Program Files\Java\jdk1.5.0_14\bin;C:\JDBC\sqljdbc_1.2\enu\sqljdbc.jar;c:\Program Files\Microsoft SQL Server\90\Tools\binn\
Dec 13, 2007 11:45:54 AM org.apache.coyote.http11.Http11Protocol init
SEVERE: Error initializing endpoint
java.net.BindException: Address already in use: JVM_Bind:8080
     at org.apache.tomcat.util.net.JIoEndpoint.init(JIoEndpoint.java:501)
     at org.apache.coyote.http11.Http11Protocol.init(Http11Protocol.java:177)
     at org.apache.catalina.connector.Connector.initialize(Connector.java:1059)
     at org.apache.catalina.core.StandardService.initialize(StandardService.java:677)
     at org.apache.catalina.core.StandardServer.initialize(StandardServer.java:792)
     at org.apache.catalina.startup.Catalina.load(Catalina.java:518)
     at org.apache.catalina.startup.Catalina.load(Catalina.java:538)
     at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
     at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
     at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
     at java.lang.reflect.Method.invoke(Method.java:585)
     at org.apache.catalina.startup.Bootstrap.load(Bootstrap.java:260)
     at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:412)
Dec 13, 2007 11:45:54 AM org.apache.catalina.startup.Catalina load
SEVERE: Catalina.start
LifecycleException: Protocol handler initialization failed: java.net.BindException: Address already in use: JVM_Bind:8080
     at org.apache.catalina.connector.Connector.initialize(Connector.java:1061)
     at org.apache.catalina.core.StandardService.initialize(StandardService.java:677)
     at org.apache.catalina.core.StandardServer.initialize(StandardServer.java:792)
     at org.apache.catalina.startup.Catalina.load(Catalina.java:518)
     at org.apache.catalina.startup.Catalina.load(Catalina.java:538)
     at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
     at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
     at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
     at java.lang.reflect.Method.invoke(Method.java:585)
     at org.apache.catalina.startup.Bootstrap.load(Bootstrap.java:260)
     at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:412)
Dec 13, 2007 11:45:54 AM org.apache.catalina.startup.Catalina load
INFO: Initialization processed in 827 ms
Dec 13, 2007 11:45:54 AM org.apache.catalina.core.StandardService start
INFO: Starting service Catalina
Dec 13, 2007 11:45:54 AM org.apache.catalina.core.StandardEngine start
INFO: Starting Servlet Engine: Apache Tomcat/6.0.14
Dec 13, 2007 11:45:54 AM org.apache.tomcat.util.digester.Digester fatalError
SEVERE: Parse Fatal Error at line 1 column 6: The processing instruction target matching "[xX][mM][lL]" is not allowed.
org.xml.sax.SAXParseException: The processing instruction target matching "[xX][mM][lL]" is not allowed.
     at com.sun.org.apache.xerces.internal.util.ErrorHandlerWrapper.createSAXParseException(ErrorHandlerWrapper.java:236)
     at com.sun.org.apache.xerces.internal.util.ErrorHandlerWrapper.fatalError(ErrorHandlerWrapper.java:215)
     at com.sun.org.apache.xerces.internal.impl.XMLErrorReporter.reportError(XMLErrorReporter.java:386)
     at com.sun.org.apache.xerces.internal.impl.XMLErrorReporter.reportError(XMLErrorReporter.java:316)
     at com.sun.org.apache.xerces.internal.impl.XMLScanner.reportFatalError(XMLScanner.java:1438)
     at com.sun.org.apache.xerces.internal.impl.XMLScanner.scanPIData(XMLScanner.java:689)
     at com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl.scanPIData(XMLDocumentFragmentScannerImpl.java:750)
     at com.sun.org.apache.xerces.internal.impl.XMLScanner.scanPI(XMLScanner.java:664)
     at com.sun.org.apache.xerces.internal.impl.XMLDocumentScannerImpl$PrologDispatcher.dispatch(XMLDocumentScannerImpl.java:845)
     at com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl.scanDocument(XMLDocumentFragmentScannerImpl.java:368)
     at com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(XML11Configuration.java:834)
     at com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(XML11Configuration.java:764)
     at com.sun.org.apache.xerces.internal.parsers.XMLParser.parse(XMLParser.java:148)
     at com.sun.org.apache.xerces.internal.parsers.AbstractSAXParser.parse(AbstractSAXParser.java:1242)
     at org.apache.tomcat.util.digester.Digester.parse(Digester.java:1562)
     at org.apache.catalina.startup.ContextConfig.applicationWebConfig(ContextConfig.java:369)
     at org.apache.catalina.startup.ContextConfig.start(ContextConfig.java:1062)
     at org.apache.catalina.startup.ContextConfig.lifecycleEvent(ContextConfig.java:261)
     at org.apache.catalina.util.LifecycleSupport.fireLifecycleEvent(LifecycleSupport.java:117)
     at org.apache.catalina.core.StandardContext.start(StandardContext.java:4239)
     at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:791)
     at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:771)
     at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:525)
     at org.apache.catalina.startup.HostConfig.deployDescriptor(HostConfig.java:626)
     at org.apache.catalina.startup.HostConfig.deployDescriptors(HostConfig.java:553)
     at org.apache.catalina.startup.HostConfig.deployApps(HostConfig.java:488)
     at org.apache.catalina.startup.HostConfig.start(HostConfig.java:1138)
     at org.apache.catalina.startup.HostConfig.lifecycleEvent(HostConfig.java:311)
     at org.apache.catalina.util.LifecycleSupport.fireLifecycleEvent(LifecycleSupport.java:117)
     at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1053)
     at org.apache.catalina.core.StandardHost.start(StandardHost.java:719)
     at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1045)
     at org.apache.catalina.core.StandardEngine.start(StandardEngine.java:443)
     at org.apache.catalina.core.StandardService.start(StandardService.java:516)
     at org.apache.catalina.core.StandardServer.start(StandardServer.java:710)
     at org.apache.catalina.startup.Catalina.start(Catalina.java:566)
     at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
     at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
     at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
     at java.lang.reflect.Method.invoke(Method.java:585)
     at org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:288)
     at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:413)
Dec 13, 2007 11:45:54 AM org.apache.catalina.startup.ContextConfig applicationWebConfig
SEVERE: Parse error in application web.xml file at jndi:/localhost/HelloWorld/WEB-INF/web.xml
org.xml.sax.SAXParseException: The processing instruction target matching "[xX][mM][lL]" is not allowed.
     at com.sun.org.apache.xerces.internal.parsers.AbstractSAXParser.parse(AbstractSAXParser.java:1269)
     at org.apache.tomcat.util.digester.Digester.parse(Digester.java:1562)
     at org.apache.catalina.startup.ContextConfig.applicationWebConfig(ContextConfig.java:369)
     at org.apache.catalina.startup.ContextConfig.start(ContextConfig.java:1062)
     at org.apache.catalina.startup.ContextConfig.lifecycleEvent(ContextConfig.java:261)
     at org.apache.catalina.util.LifecycleSupport.fireLifecycleEvent(LifecycleSupport.java:117)
     at org.apache.catalina.core.StandardContext.start(StandardContext.java:4239)
     at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:791)
     at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:771)
     at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:525)
     at org.apache.catalina.startup.HostConfig.deployDescriptor(HostConfig.java:626)
     at org.apache.catalina.startup.HostConfig.deployDescriptors(HostConfig.java:553)
     at org.apache.catalina.startup.HostConfig.deployApps(HostConfig.java:488)
     at org.apache.catalina.startup.HostConfig.start(HostConfig.java:1138)
     at org.apache.catalina.startup.HostConfig.lifecycleEvent(HostConfig.java:311)
     at org.apache.catalina.util.LifecycleSupport.fireLifecycleEvent(LifecycleSupport.java:117)
     at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1053)
     at org.apache.catalina.core.StandardHost.start(StandardHost.java:719)
     at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1045)
     at org.apache.catalina.core.StandardEngine.start(StandardEngine.java:443)
     at org.apache.catalina.core.StandardService.start(StandardService.java:516)
     at org.apache.catalina.core.StandardServer.start(StandardServer.java:710)
     at org.apache.catalina.startup.Catalina.start(Catalina.java:566)
     at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
     at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
     at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
     at java.lang.reflect.Method.invoke(Method.java:585)
     at org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:288)
     at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:413)
Dec 13, 2007 11:45:54 AM org.apache.catalina.startup.ContextConfig applicationWebConfig
SEVERE: Occurred at line 1 column 6
Dec 13, 2007 11:45:54 AM org.apache.catalina.startup.ContextConfig start
SEVERE: Marking this application unavailable due to previous error(s)
Dec 13, 2007 11:45:54 AM org.apache.catalina.core.StandardContext start
SEVERE: Error getConfigured
Dec 13, 2007 11:45:54 AM org.apache.catalina.core.StandardContext start
SEVERE: Context [HelloWorld] startup failed due to previous errors
Dec 13, 2007 11:45:55 AM org.apache.coyote.http11.Http11Protocol start
SEVERE: Error starting endpoint
java.net.BindException: Address already in use: JVM_Bind:8080
     at org.apache.tomcat.util.net.JIoEndpoint.init(JIoEndpoint.java:501)
     at org.apache.tomcat.util.net.JIoEndpoint.start(JIoEndpoint.java:515)
     at org.apache.coyote.http11.Http11Protocol.start(Http11Protocol.java:204)
     at org.apache.catalina.connector.Connector.start(Connector.java:1132)
     at org.apache.catalina.core.StandardService.start(StandardService.java:531)
     at org.apache.catalina.core.StandardServer.start(StandardServer.java:710)
     at org.apache.catalina.startup.Catalina.start(Catalina.java:566)
     at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
     at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
     at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
     at java.lang.reflect.Method.invoke(Method.java:585)
     at org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:288)
     at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:413)
Dec 13, 2007 11:45:55 AM org.apache.catalina.startup.Catalina start
SEVERE: Catalina.start:
LifecycleException: service.getName(): "Catalina"; Protocol handler start failed: java.net.BindException: Address already in use: JVM_Bind:8080
     at org.apache.catalina.connector.Connector.start(Connector.java:1139)
     at org.apache.catalina.core.StandardService.start(StandardService.java:531)
     at org.apache.catalina.core.StandardServer.start(StandardServer.java:710)
     at org.apache.catalina.startup.Catalina.start(Catalina.java:566)
     at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
     at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
     at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
     at java.lang.reflect.Method.invoke(Method.java:585)
     at org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:288)
     at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:413)
Dec 13, 2007 11:45:55 AM org.apache.catalina.startup.Catalina start
INFO: Server startup in 1244 ms
Dec 13, 2007 11:45:55 AM org.apache.catalina.core.StandardServer await
SEVERE: StandardServer.await: create[8005]:
java.net.BindException: Address already in use: JVM_Bind
     at java.net.PlainSocketImpl.socketBind(Native Method)
     at java.net.PlainSocketImpl.bind(PlainSocketImpl.java:359)
     at java.net.ServerSocket.bind(ServerSocket.java:319)
     at java.net.ServerSocket.<init>(ServerSocket.java:185)
     at org.apache.catalina.core.StandardServer.await(StandardServer.java:373)
     at org.apache.catalina.startup.Catalina.await(Catalina.java:630)
     at org.apache.catalina.startup.Catalina.start(Catalina.java:590)
     at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
     at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
     at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
     at java.lang.reflect.Method.invoke(Method.java:585)
     at org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:288)
     at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:413)

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Regards
Ramkumar R

Frame access from servlet not working

Dear all,
I am running my servlets on Tomcat 5.5 and using JDK 1.6. I have a small program that uses codecs to access frames from a video file. PreAccessCodec implements Codec interface and PostAccessCodec extends PreAccessCodec. I set the two codecs into the processor's codec chain. The program is implemented as a thread and once started grabs frames and stores the images in a certain interval. The problem is this: whenever I start the thread from a main program, everything runs without a glitch. However, when I put the code in init() method of the servlet, I get the following error message:
The input format is not compatible with the given codec plugin: com.mapper.utils.PostAccessCodec@69d02b
Failed to realize: com.sun.media.ProcessEngine@1478a43
Cannot build a flow graph with the customized options:
    Unable to add customed codecs:
      com.mapper.utils.PreAccessCodec@15356d5
      com.mapper.utils.PostAccessCodec@69d02b
Error: Unable to realize com.sun.media.ProcessEngine@1478a43 I am using netbeans 5.5.1 to deploy my servlets. I doubt that the problem is with classpaths because the servlet doesn't complain when I am using JMF's classes like Processor.
I would really appreciate any help.
Thank you.
Message was edited by:
calculemus

The GE.iH() method should return false for
a ..head-full ..en-headed, not headless
environment, and I expect (from what you
reported above) that will return false for both
your servlet and application, and is apparently
not the problem.It returned false when I tried GE, and it was not the problem as you suggested. However, I now noticed in the logs:
java.awt.HeadlessException
I use Netbeans for the development, and I tried using -Dheadless=true and -Dheadless=false, it did not change anything...
I think it is time to check that assumption
more carefully.
My impression is that PreAccessCodec and
it's 'Post' equivalent are mentioned a lot in JMF
example code, but are custom classes,
built to suit the use at the time. Did you write the
Pre/PostAccessCodecs for this app.?Yes I customized them from the JMF sample codes. They are in the classpaths and are correctly read by the servlet. I did some logging and I actually saw that the code inside Pre/PostAccess was logging when my servlet was run.
>
So, what I am thinking, is that while the JMF
based Processor class may well be on the
server's
classpath, perhaps Pre/PostAccessCodec classes
are not.
oes a jar appear in the WEB-INF/lib directory,
that contains the Pre/PostAccessCodec.class?
Failing that, are the classes themselves in
WEB-INF/classes/(sub-dir according to package name)/ ?Nevertheless, just to double check I checked WEB-INF directory and the classes appear correctly in their appropriate 'package-folders'.
I figured out where exactly the thread was not running. In my PostAccessCodec class, I had overloaded getSupportedInputFormats() function to return RGB format.
public Format [] getSupportedInputFormats() {
Format [] fomats = {new RGBFormat()};
return fomrats;
When I changed it to return {VideoFormat()}, the codec initializes, but I get nothing when I want to access the frame.
I guess I will have to start another thread.
@moderators, please move the post if it is inappropriate to put it in this thread, my apologies.
The problem is still there and I am not able to get the frame access not working from the servlet. :(
Message was edited by:
calculemus
Message was edited by:
calculemus

Facebook yahoo and world app not working by wifi

hi
i am using blackberry curve 9300
software 6.0 bundle 2949 (v6.0.0.668)
my facebook yahoo and workd app are not working i am really worried plz help me asap .
its given me a messege that
(you are currently on a service plan that doest not support this application ,please connet to a wifi network or contact your provider to upgrade your plan )
i want to use my application by wifi plz help in meanwhile youtube is working by wifi but yahoo facebook app world given error plz help me asap thank you .

Do you have one of the BlackBerry Social Plans?
Do you see a small Blackberry logo next to your WiFi icon on your homescreen?

Move jsp code into servlet, not work!!

Hi:
I am new in servlet and java, I can use jdom to read xml file
into a jsp file, but whan I move jsp code into servlet, they are not work
have any ideals?
Thank!

Hi:
my.jsp
<%@ page contentType="text/html"%>
<%@ page import="java.io.File,
java.util.*,
org.jdom.*,
org.jdom.input.SAXBuilder,
org.jdom.output.*" %>
<%
String Records = "c:/XMl/Quotes.xml";
SAXBuilder builder = new SAXBuilder("org.apache.xerces.parsers.SAXParser");
Document l_doc = builder.build(new File(Records));
my servlet
import java.io.*;
import javax.servlet.*;
import javax.servlet.http.*;
import org.jdom.*;
import org.jdom.input.*;
import org.jdom.input.SAXBuilder;
import org.jdom.output.*;
public class XmlJdom extends HttpServlet
String Records = "c:/xml/Quotes.xml";
SAXBuilder builder = null;
Element Author = null;
Element Text = null;
Element Date = null;
* Initializes the servlet.
public void init(ServletConfig config) throws ServletException
super.init(config); //pass ServletConfig to parent
try
// JDOM can build JDOM trees from a variety of input sources. One
// of those input sources is a SAX parser.
SAXBuilder builder = new SAXBuilder("org.apache.xerces.parsers.SAXParser");
catch ( org.jdom.JDOMEXception e)
public void doGet(
HttpServletRequest request,
HttpServletResponse response)
     throws IOException, ServletException
     PrintWriter out = null;
     out = response.getWriter();
     try{
     Document l_doc = builder.build(new File(Records));
Element root = l_doc.getRootElement();
//get a list of all recode in my XML document
String l_pages = root.getChild("quote");
String Iterator e = l_pages.iterator();
while ( e.hasNext())
Element l_quote= (Element) e.next();
     Element l_Author = l_quote.getChild("Date").getChild("Text");
XMLOutputter l_format = new XMLOutputter();
String ls_result = l_format.outputString(l_doc);
out.println(ls_result);
catch( org.jdom.JDOMException e )
     finally
          if( out != null)
               out.close();
Please tell me, what is wrong!!!
Element root = l_doc.getRootElement();
/* get a list of all the links in our XML document */
List l_pages = root.getChildren("quote");
Iterator Myloop = l_pages.iterator();
while ( Myloop.hasNext())
Element l_quote= (Element) Myloop.next();
     Element l_Author = l_quote.getChild("Date").getChild("Text");
XMLOutputter l_format = new XMLOutputter();
String ls_result = l_format.outputString(l_doc);
ls_result = l_format.outputString(l_doc);
%>
<html><head><title></title></head>
     <body>
          <pre>
          <%=ls_result%>
          </pre>
     </body>
</html>

JSP/Servlets not working after upload

I have a JSP file and some servlets that work fine on my PC running Tomcat.
I just uploaded them to my web server (which supports servlets/jsp and has apache web server running), but they do not work. The jsp file does not run, it just displays the source code.
Strangely, the support people at my server say the jsp files run ok when they view them. But when I view them from my browser it just shows source code.
Do I need to configure something in my program? Or is it a server problem?

Very hard to help without seeing the page - the answer is in the code :-)
Can you please point a link to your page?
Are you sure you uploaded all the image files, and that the paths to the images are all correct?
Nadia
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