Tomcat client + JBOSS server

Regarding to JBossIDE-Tutorial.pdf I worked through this tutorial and I reached my first EJB
Now I�m trying to deploy the application as clent and server using Tomcat 5.5 and JBOSS 4.2.0GA ( on two different host placed in the same lan )
I have the same project on the JBOSS and the new one in Tomcat
In Tomcat I copied only the interfaces and servlet because I want to call the EJB method from Tomcat application container
I modified the code of ComputeServlet.java in this way
Hashtable env = new Hashtable();
env.put(Context.INITIAL_CONTEXT_FACTORY,"org.jnp.interfaces.NamingCotextFactory");
env.put(Context.PROVIDER_URL, "jnp://192.168.0.13:1099");
Context context = new InitialContext(env);
Object ref = context.lookup("ejb/Fibo");
home = (FiboHome) PortableRemoteObject.narrow(ref, FiboHome.class);during the lookup method I reach the same error message
--------javax.naming.CommunicationException: Could not obtain connection to any of these urls: 192.168.0.13:1099 and discovery failed with error: javax.naming.CommunicationException: Receive timed out [Root exception is java.net.SocketTimeoutException: Receive timed out] [Root exception is javax.naming.CommunicationException: Failed to connect to server 192.168.0.13:1099 [Root exception is javax.naming.ServiceUnavailableException: Failed to connect to server 192.168.0.13:1099 [Root exception is java.net.ConnectException: Connection refused: connect]]]
it seams that the Tomcat client doesn�t reach the JBOSS server
I wonder if anyone could give me any suggestion
Many many thanks

ok many thanks
now all work properly
the real problem was the ip address of JBOSS Server
I found interesting faq at this link
-> http://wiki.jboss.org/wiki/Wiki.jsp?page=JBoss42FAQ
Frequently Asked Questions about the JBoss4.2 Release
1. . Why can't I connect to the server remotely? All the services appear to be bound to localhost only.
* That's correct before 4.2.0.GA jboss always bound to the any address "0.0.0.0". You wouldn't believe how many people would put unprotected instances of JBoss on the internet, or even on their own local LAN. Now you have to explicitly choose to do that, so it takes some thinking about before you revert to the old default behaviour with the "-b' option of jboss. e.g.
./run.sh -b 0.0.0.0
For Windows, use
run.bat -b 0.0.0.0

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    this.NewMessage.SafeInvoke(Encoding.ASCII.GetString(data));
    catch (Exception exception)
    How can I determine that the client or the server is no longer available?
    Server
    public class Server
    private readonly Dictionary<IPEndPoint, TcpClient> clients = new Dictionary<IPEndPoint, TcpClient>();
    private readonly List<CancellationTokenSource> cancellationTokens = new List<CancellationTokenSource>();
    private TcpListener tcpListener;
    private bool isStarted;
    public event Action<string> NewMessage;
    public async Task Start(int port)
    this.tcpListener = TcpListener.Create(port);
    this.tcpListener.Start();
    this.isStarted = true;
    while (this.isStarted)
    var tcpClient = await this.tcpListener.AcceptTcpClientAsync();
    var cts = new CancellationTokenSource();
    this.cancellationTokens.Add(cts);
    await Task.Factory.StartNew(() => this.Process(cts.Token, tcpClient), cts.Token, TaskCreationOptions.LongRunning, TaskScheduler.Default);
    public void Stop()
    this.isStarted = false;
    foreach (var cancellationTokenSource in this.cancellationTokens)
    cancellationTokenSource.Cancel();
    foreach (var tcpClient in this.clients.Values)
    tcpClient.GetStream().Close();
    tcpClient.Close();
    this.clients.Clear();
    public async Task SendMessage(string message, IPEndPoint endPoint)
    try
    var tcpClient = this.clients[endPoint];
    await this.Send(tcpClient.GetStream(), Encoding.ASCII.GetBytes(message));
    catch (Exception exception)
    private async Task Process(CancellationToken cancellationToken, TcpClient tcpClient)
    try
    var stream = tcpClient.GetStream();
    this.clients.Add((IPEndPoint)tcpClient.Client.RemoteEndPoint, tcpClient);
    while (!cancellationToken.IsCancellationRequested)
    var data = await this.Receive(stream);
    this.NewMessage.SafeInvoke(Encoding.ASCII.GetString(data));
    catch (Exception exception)
    private async Task Send(NetworkStream stream, byte[] buf)
    await stream.WriteAsync(BitConverter.GetBytes(buf.Length), 0, 4);
    await stream.WriteAsync(buf, 0, buf.Length);
    private async Task<byte[]> Receive(NetworkStream stream)
    var lengthBytes = new byte[4];
    await stream.ReadAsync(lengthBytes, 0, 4);
    var length = BitConverter.ToInt32(lengthBytes, 0);
    var buf = new byte[length];
    await stream.ReadAsync(buf, 0, buf.Length);
    return buf;
    Client
    public class Client
    private TcpClient tcpClient;
    private NetworkStream stream;
    public event Action<string> NewMessage;
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    try
    this.tcpClient = new TcpClient();
    await this.tcpClient.ConnectAsync(host, port);
    this.stream = this.tcpClient.GetStream();
    this.Process();
    catch (Exception exception)
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    try
    this.stream.Close();
    this.tcpClient.Close();
    catch (Exception exception)
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    try
    await this.Send(Encoding.ASCII.GetBytes(message));
    catch (Exception exception)
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    try
    while (true)
    var data = await this.Receive();
    this.NewMessage.SafeInvoke(Encoding.ASCII.GetString(data));
    catch (Exception exception)
    private async Task Send(byte[] buf)
    await this.stream.WriteAsync(BitConverter.GetBytes(buf.Length), 0, 4);
    await this.stream.WriteAsync(buf, 0, buf.Length);
    private async Task<byte[]> Receive()
    var lengthBytes = new byte[4];
    await this.stream.ReadAsync(lengthBytes, 0, 4);
    var length = BitConverter.ToInt32(lengthBytes, 0);
    var buf = new byte[length];
    await this.stream.ReadAsync(buf, 0, buf.Length);
    return buf;

    Hi,
    Have you debug these two applications? Does it go into the catch exception block when you close the client or the server?
    According to my test, it will throw an exception when the client or the server is closed, just log the exception message in the catch block and then you'll get it:
    private async void Process()
    try
    while (true)
    var data = await this.Receive();
    this.NewMessage.Invoke(Encoding.ASCII.GetString(data));
    catch (Exception exception)
    Console.WriteLine(exception.Message);
    Unable to read data from the transport connection: An existing   connection was forcibly closed by the remote host.
    By the way, I don't know what the SafeInvoke method is, it may be an extension method, right? I used Invoke instead to test it.
    We are trying to better understand customer views on social support experience, so your participation in this interview project would be greatly appreciated if you have time. Thanks for helping make community forums a great place.
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    HERE to participate the survey.

  • Re: [iPlanet-JATO] Tomcat 3.2 serving images and html?

    First of all David you are faster responding to email than I am. Thanks.
    We tried your scheme with no luck. You are using "ROOT" as your war file
    name ROOT, correct? Are you sure the jsp would reference
    "/images/MyProject/nppnback.gif"? Why is "MyProject" in there? Where is
    the directory "images" defined to Tomcat? Is it a default?
    Here's another try at explaining:
    In my JSP I have;
    <IMG SRC="/images/ef.gif" ALT=People Banner">
    My application is in webapps/EformsAppWar
    (jsps in EformsAppWar/EformsApp/eforms/*.jsp)
    (classes in EformsAppWar/WEB-INF/classes)
    so images are in webapps/EformsAppWar/images
    and there is, indeed a ef.gif there.
    However with no server.xml changes (everything default), Tomcat 3.2
    gives a 404 in his log and states in the 404 message that context is
    null (CTX < >) and ca't find /images/ef.gif + NULL.
    By the way I just noticed that in Tomcat 3.1 I have the images directory
    directly under webapps.
    ----- Original Message -----
    From: "David J.L. Martin" <<a href="/group/SunONE-JATO/post?protectID=114166018056146134184102046176231239071179066034">dave@t...</a>>
    Date: Wednesday, May 23, 2001 3:35 pm
    Subject: Re: [iPlanet-JATO] Tomcat 3.2 serving images and html?
    This works:
    If the doc root is webapps\ROOT --
    Using defaults...jsp's would be put in
    webapps\ROOT\MyProjectApp\MyProject\*.jsp
    and images would be put in webapps\ROOT\images\*.gif
    Then in your jsp...use the following reference:
    "/images/MyProject/nppnback.gif">
    That will work just using defaults and not playing with any of the
    config files...
    ie. webapps\ROOT\WEB-INF gets updated as well (with required
    classes).
    djm
    TechPie
    916 924-1832 (office)
    916 730-4743 (mobile)
    916 313-3531 (fax)
    <a href="/group/SunONE-JATO/post?protectID=114232044112042209130232046248130100239179057215113109152006048067">dmushrush@e...</a> wrote:
    Many of you are running Tomcat 3.2. Can anyone tell me how to get
    images to be served by Tomcat. In 3.1 if I referenced /images/image.gif> in my JSP, I could just place the images
    directory in the application
    (context) directory.
    The default docBase is webapp> that webapp> relative addressed as /images/image.gif but such is not the case.
    I have put the images directory almost everyplace possible with no luck.
    I have explicitly defined docBase in tomcat/conf/server.xml and still no
    luck.
    I currently have the following in conf/server.xml
    <Context path="/EformsAppWar"
    docBase="c:/tomcat/webapps/EformsAppWar"
    crossContext="true"
    debug="0"
    reloadable="true" >
    </Context>
    I place images in that directory structure but still take 404's and in
    the log it refers to context as /images ????
    I'm probably doing something (or not doing something) foolish. Anybody> have a remedy.
    <a href="/group/SunONE-JATO/post?protectID=210083235237078198050118178206047166215146166214017110250006230056039126077176105140127082088124241215002153">[email protected]</a>
    <a href="/group/SunONE-JATO/post?protectID=210083235237078198050118178206047166215146166214017110250006230056039126077176105140127082088124241215002153">[email protected]</a>

    First of all David you are faster responding to email than I am. Thanks.
    We tried your scheme with no luck. You are using "ROOT" as your war file
    name ROOT, correct? Are you sure the jsp would reference
    "/images/MyProject/nppnback.gif"? Why is "MyProject" in there? Where is
    the directory "images" defined to Tomcat? Is it a default?
    Here's another try at explaining:
    In my JSP I have;
    <IMG SRC="/images/ef.gif" ALT=People Banner">
    My application is in webapps/EformsAppWar
    (jsps in EformsAppWar/EformsApp/eforms/*.jsp)
    (classes in EformsAppWar/WEB-INF/classes)
    so images are in webapps/EformsAppWar/images
    and there is, indeed a ef.gif there.
    However with no server.xml changes (everything default), Tomcat 3.2
    gives a 404 in his log and states in the 404 message that context is
    null (CTX < >) and ca't find /images/ef.gif + NULL.
    By the way I just noticed that in Tomcat 3.1 I have the images directory
    directly under webapps.
    ----- Original Message -----
    From: "David J.L. Martin" <<a href="/group/SunONE-JATO/post?protectID=114166018056146134184102046176231239071179066034">dave@t...</a>>
    Date: Wednesday, May 23, 2001 3:35 pm
    Subject: Re: [iPlanet-JATO] Tomcat 3.2 serving images and html?
    This works:
    If the doc root is webapps\ROOT --
    Using defaults...jsp's would be put in
    webapps\ROOT\MyProjectApp\MyProject\*.jsp
    and images would be put in webapps\ROOT\images\*.gif
    Then in your jsp...use the following reference:
    "/images/MyProject/nppnback.gif">
    That will work just using defaults and not playing with any of the
    config files...
    ie. webapps\ROOT\WEB-INF gets updated as well (with required
    classes).
    djm
    TechPie
    916 924-1832 (office)
    916 730-4743 (mobile)
    916 313-3531 (fax)
    <a href="/group/SunONE-JATO/post?protectID=114232044112042209130232046248130100239179057215113109152006048067">dmushrush@e...</a> wrote:
    Many of you are running Tomcat 3.2. Can anyone tell me how to get
    images to be served by Tomcat. In 3.1 if I referenced /images/image.gif> in my JSP, I could just place the images
    directory in the application
    (context) directory.
    The default docBase is webapp> that webapp> relative addressed as /images/image.gif but such is not the case.
    I have put the images directory almost everyplace possible with no luck.
    I have explicitly defined docBase in tomcat/conf/server.xml and still no
    luck.
    I currently have the following in conf/server.xml
    <Context path="/EformsAppWar"
    docBase="c:/tomcat/webapps/EformsAppWar"
    crossContext="true"
    debug="0"
    reloadable="true" >
    </Context>
    I place images in that directory structure but still take 404's and in
    the log it refers to context as /images ????
    I'm probably doing something (or not doing something) foolish. Anybody> have a remedy.
    <a href="/group/SunONE-JATO/post?protectID=210083235237078198050118178206047166215146166214017110250006230056039126077176105140127082088124241215002153">[email protected]</a>
    <a href="/group/SunONE-JATO/post?protectID=210083235237078198050118178206047166215146166214017110250006230056039126077176105140127082088124241215002153">[email protected]</a>

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