How to solve javax.naming.NameNotFoundException at this code

47,897

Solution 1

When you call an EJB you should not use the remote-naming project, but the remote EJB-invocation as described in https://docs.jboss.org/author/display/AS71/EJB+invocations+from+a+remote+client+using+JNDI

Your JNDI name will look like:

context.lookup("ejb:" + appName + "/" + moduleName + "/" + distinctName + "/" + beanName + "!" + viewClassName)

appName and distinctName are empty in your case (no EAR). See the example in the provided link.

Solution 2

JNDI address format has changed significantly on JBoss 7. Related documentation can be found here.

Try replacing LibrarySessionBean/remote with:

app-name/module-name/LibrarySessionBean!com.tutorialspoint.stateless.LibrarySessionBeanRemote`

where:

app-name = the name of the .ear (without the .ear suffix) or the application name configured via application.xml deployment descriptor. If the application isn't packaged in a .ear then there will be no app-name part to the JNDI string.

module-name = the name of the .jar or .war (without the .jar/.war suffix) in which the bean is deployed or the module-name configured in web.xml/ejb-jar.xml of the deployment. The module name is mandatory part in the JNDI string.

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Vahid
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Vahid

Updated on October 31, 2020

Comments

  • Vahid
    Vahid over 3 years

    I make a Ejb project in netbean 7.3 with jboss-7.1.1 Final

    In Ejb module i have these:

    LibrarySessionBeanRemote.java

    package com.tutorialspoint.stateless;
    
    import java.util.List;
    import javax.ejb.Remote;
    
    @Remote
    public interface LibrarySessionBeanRemote {
    void addBook(String bookName);
    List getBooks(); 
    }
    

    LibrarySessionBean.java

    package com.tutorialspoint.stateless;
    
    import java.util.ArrayList;
    import java.util.List;
    import javax.ejb.Remote;
    import javax.ejb.Stateless;
    
    
    @Stateless
    @Remote(LibrarySessionBeanRemote.class)
    public class LibrarySessionBean implements LibrarySessionBeanRemote {
    
    List<String> bookSelf;    
    
    public LibrarySessionBean() {
    this.bookSelf = new ArrayList<String>();
    }
    
    @Override
    public void addBook(String bookName) {
    bookSelf.add(bookName);
    }
    
    @Override
    public List getBooks() {
    return bookSelf;
    }
    }
    

    and I make a client with java application project type

    package client;
    
    import com.tutorialspoint.stateless.LibrarySessionBeanRemote;
    import java.io.BufferedReader;
    import java.io.IOException;
    import java.io.InputStreamReader;
    import java.util.List;
    import java.util.Properties;
    import javax.naming.Context;
    import javax.naming.InitialContext;
    import javax.naming.NamingException;
    
    
    public class EJBTester {
    
    BufferedReader brConsoleReader = null;
    Properties props;
    InitialContext ctx;
    {
        props = new Properties();
            props.put(Context.SECURITY_PRINCIPAL, "testuser");
            props.put(Context.SECURITY_CREDENTIALS, "test");
            props.put(Context.PROVIDER_URL, "remote://localhost:4447");
            props.put("jboss.naming.client.ejb.context", true);
            props.put(Context.INITIAL_CONTEXT_FACTORY,   org.jboss.naming.remote.client.InitialContextFactory.class.getName());
        try {
            ctx = new InitialContext(props);
        } catch (NamingException ex) {
    
            ex.printStackTrace();
        }
        brConsoleReader =
                new BufferedReader(new InputStreamReader(System.in));
    }
    
    public static void main(String[] args) {
    
        EJBTester ejbTester = new EJBTester();
    
        ejbTester.testStatelessEjb();
    }
    
    private void showGUI() {
        System.out.println("**********************");
        System.out.println("Welcome to Book Store");
        System.out.println("**********************");
        System.out.print("Options \n1. Add Book\n2. Exit \nEnter Choice: ");
    }
    
    private void testStatelessEjb() {
        try {
            int choice = 1;
    
            LibrarySessionBeanRemote libraryBean =
                    (LibrarySessionBeanRemote) ctx.lookup("LibrarySessionBean/remote");
    
            while (choice != 2) {
                String bookName;
                showGUI();
                String strChoice = brConsoleReader.readLine();
                choice = Integer.parseInt(strChoice);
                if (choice == 1) {
                    System.out.print("Enter book name: ");
                    bookName = brConsoleReader.readLine();
                    libraryBean.addBook(bookName);
                } else if (choice == 2) {
                    break;
                }
            }
            List<String> booksList = libraryBean.getBooks();
            System.out.println("Book(s) entered so far: " + booksList.size());
            for (int i = 0; i < booksList.size(); ++i) {
                System.out.println((i + 1) + ". " + booksList.get(i));
            }
            LibrarySessionBeanRemote libraryBean1 =
                    (LibrarySessionBeanRemote) ctx.lookup("LibrarySessionBean/remote");
            List<String> booksList1 = libraryBean1.getBooks();
            System.out.println(
                    "***Using second lookup to get library stateless object***");
            System.out.println(
                    "Book(s) entered so far: " + booksList1.size());
            for (int i = 0; i < booksList1.size(); ++i) {
                System.out.println((i + 1) + ". " + booksList1.get(i));
            }
        } catch (Exception e) {
            System.out.println(e.getMessage());
            e.printStackTrace();
        } finally {
            try {
                if (brConsoleReader != null) {
                    brConsoleReader.close();
                }
            } catch (IOException ex) {
                System.out.println(ex.getMessage());
            }
        }
    }
    }
    

    but i have this exception

    javax.naming.NameNotFoundException: LibrarySessionBean/remote -- service jboss.naming.context.java.jboss.exported.LibrarySessionBean.remote
        at org.jboss.as.naming.ServiceBasedNamingStore.lookup(ServiceBasedNamingStore.java:97)
        at org.jboss.as.naming.NamingContext.lookup(NamingContext.java:178)
        at org.jboss.naming.remote.protocol.v1.Protocol$1.handleServerMessage(Protocol.java:127)
        at org.jboss.naming.remote.protocol.v1.RemoteNamingServerV1$MessageReciever$1.run(RemoteNamingServerV1.java:73)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1110)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:603)
    at java.lang.Thread.run(Thread.java:722)