can't find SerialContextProvider
hello,
I am trying to use jboss3.0.0 on windows 2000. (jdk 1.3) I have implemented the EJBHomeFactory class. However, when I try a InitialContext() with no arguments I am get the following exception when my client app attempts to perform a JNDI lookup of a session bean:
[EJBHomeFactory] Got initial context = localhost:1099@java:comp/env
javax.naming.CommunicationException: Can't find SerialContextProvider
at com.sun.enterprise.naming.SerialContext.getProvider(../../src/share/com/sun/enterprise/naming/SerialContext.java:65)
at com.sun.enterprise.naming.SerialContext.lookup(../../src/share/com/sun/enterprise/naming/SerialContext.java:134)
at javax.naming.InitialContext.lookup(InitialContext.java:350)
at org.jschedule.util.EJBHomeFactory.lookUpHome(EJBHomeFactory.java:127)
at org.jschedule.test.TestSessionBeans.main(TestSessionBeans.java:31)
Can't find SerialContextProvider
org.jschedule.util.EJBHomeFactoryException: Can't find SerialContextProvider
at org.jschedule.util.EJBHomeFactory.lookUpHome(EJBHomeFactory.java:145)
at org.jschedule.test.TestSessionBeans.main(TestSessionBeans.java:31)
I placed the jndi.properties files in the same directory
as org.jschedule.test.TestSessionBeans. If I set
the properties values in EJBHomeFactory, everthing works fine. where is the proper place for a jndi.properties file? a seperate directory? I am using forte4j to run
my client app. thanks.
Silver
for some reason i can't attached files on the forum.
code is below
public class EJBHomeFactory {
private Map m_ejbHomes; // map of all ejb home interfaces
private Context m_jndiCntx;
private static String m_hostProviderURL;
private static EJBHomeFactory aFactorySingleton;
// ********************************************************************
// Private constructor to allow only a single instance. Initializiation
// of the Context with System property Info should take place here.
// ********************************************************************
private EJBHomeFactory() throws NamingException {
// Set up the naming provider; this may not always be necessary, depending
// on how your Java system is configured.
// ... Specify the JNDI properties specific to the vendor.
try {
Properties env = new Properties();
env.setProperty("java.naming.factory.initial", JNDINames.JAVA_NAMING_FACTORY);
env.setProperty("java.naming.factory.url.pkgs", JNDINames.JAVA_NAMING_FACTORY_URL);
env.setProperty("java.naming.provider.url", m_hostProviderURL);
env.setProperty("jnp.socketFactory", JNDINames.JAVA_JNP_FACTORY);
env.setProperty("jnp.timeout", "0");
env.setProperty("jnp.sotimeout", "0");
m_jndiCntx = new javax.naming.InitialContext();
System.out.println("[EJBHomeFactory] Got initial context = " +
m_hostProviderURL + "@java:comp/env");
// prevent an accidental unsynchronized access to the map
m_ejbHomes = Collections.synchronizedMap(new HashMap());
}
catch (Exception e) {
// Can't do anything about this. Client will
// catch errors upon trying to do a lookup.
}
// ********************************************************************
// ********************************************************************
public EJBHome lookUpHome(Class homeClass) throws EJBHomeFactoryException {
// find the specific class name
javax.ejb.EJBHome anEJBHome = (javax.ejb.EJBHome) m_ejbHomes.get(homeClass);
try {
if (anEJBHome == null) {
// Obtain an abstract reference to the EJB's home interface
Object objref = m_jndiCntx.lookup("ejb/" + homeClass.getName());
System.out.println("[EJBHomeFactory].lookUpHome() Got reference = ejb/" + homeClass.getName());
// Convert the abstract reference to the home interface
anEJBHome = (javax.ejb.EJBHome) javax.rmi.PortableRemoteObject.narrow(objref, homeClass);
System.out.println("[EJBHomeFactory].lookUpHome() Got home interface");
// Insert the ejbhome into the hash map for fast lookups next time
m_ejbHomes.put(homeClass, anEJBHome);
}
}
catch (ClassCastException e) {
throw new EJBHomeFactoryException(e);
}
catch (ClassNotFoundException nfe) {
nfe.printStackTrace();
throw new EJBHomeFactoryException(nfe);
}
catch (NamingException ne){
ne.printStackTrace();
throw new EJBHomeFactoryException(ne);
}
return anEJBHome;
}
}
