[jboss-user] [JNDI/Naming/Network] - Re: javax.naming.NoInitialContextException: Can't find prope
After a long time I am revisiting this topic and even though I tried to implement your
advise the very same error message stays:
javax.naming.NoInitialContextException: Can't find property:
java.naming.factory.initial
Below are the details on what I did. TIA for any further help.
SOURCE CODE MODIFICATIONS
package za.co.solms.finance.calculators;
import javax.naming.Context;
import java.util.Hashtable;
import javax.naming.InitialContext;
import javax.rmi.PortableRemoteObject;
import swingwt.awt.*;
import java.text.*;
import java.util.*;
import swingwtx.swing.*;
import swingwt.awt.event.*;
public class LoanCalculatorClient extends JFrame
{
public LoanCalculatorClient()
{
setTitle("Solms Training Loan Calculator");
java.util.Hashtable properties = new java.util.Hashtable();
properties.put(Context.PROVIDER_URL,"localhost:1099");
properties.put(Context.INITIAL_CONTEXT_FACTORY,"org.jnp.interfaces.NamingContextFactory");
properties.put("java.naming.rmi.security.manager", "yes");
/*env.put(Context.URL_PKG_PREFIXES,"org.jboss.naming.client:org.jnp.interfaces");*/
/* this is default
env.put(jnp.socketFactory,"org.jnp.interfaces.TimedSocketFactory"); */
/* Context initialContext = new InitialContext(env); */
javax.naming.Context context = new javax.naming.InitialContext(properties);
calculatorPanel = new LoanCalculatorPanel();
getContentPane().add(calculatorPanel);
addWindowListener(new WindowAdapter()
{
public void windowClosing(WindowEvent event)
{
calculatorPanel.destroy();
System.exit(0);
}
});
pack();
}
public static void main(String[] args)
{
new LoanCalculatorClient().show();
}
private LoanCalculatorPanel calculatorPanel;
}
=======
public void connect()
{
try
{
InitialContext jndiContext = new InitialContext();
System.out.println("Now looking up session bean " + jndiName + "
...");
java.util.Hashtable properties = new java.util.Hashtable();
properties.put(Context.PROVIDER_URL,"localhost:1099");
properties.put(Context.INITIAL_CONTEXT_FACTORY,"org.jnp.interfaces.NamingContextFactory");
properties.put("java.naming.rmi.security.manager", "yes");
javax.naming.Context context = new javax.naming.InitialContext(properties);
Object beanHomeRef
= jndiContext.lookup(jndiName);
System.out.println("got it");
LoanCalculatorHome home =
(LoanCalculatorHome)PortableRemoteObject.narrow
(beanHomeRef, LoanCalculatorHome.class);
loanCalculator = home.create();
}
ERRORS IN THE LOG FILE FROM BUILDING THE CLIENT JAR
/usr/local/samba/tmp/jboss/jboss_demo_solms/src/client/application/LoanCalculatorClient.java:17:
error: Undefined variable or class name: `java.naming.factory.initial'.
[javac]
env.put(java.naming.factory.initial,"org.jnp.interfaces.NamingContextFactory");
[javac] ^
[javac]
This has been fixed by using:
properties.put(Context.INITIAL_CONTEXT_FACTORY,"org.jnp.interfaces.NamingContextFactory");
in lieu of:
properties.put(java.naming.factory.initial,"org.jnp.interfaces.NamingContextFactory");
This may be a coincidence, but the client run-time error also refers to
"java.naming.factory.initial" ; so I am starting to suspect a more fundamental
problem with java.
ALTERNATIVE WAYS TO ACCESS THE JNDI SERVICE?
Because I think the following java statement causes the exception:
Object beanHomeRef
= jndiContext.lookup(jndiName);
I am wondering if one could use instead something like:
Object beanHomeRef
= jndiContext.lookup("java:/path");
Or
Java.lang.Object ejbHome =
= initialContext.lookup("ava:/path");
WARNINGS IN THE LOG FILE FROM BUILDING THE CLIENT JAR
I don't know how serious the following are:
[javac] Using gcj compiler
dropping /usr/local/samba/tmp/jboss/jboss_demo_solms/${classpath} from path as it
doesn't exist
and
Property ${classpath} has not been set
- is classpath case sensitive?
- I know from a previous experience that classpath was fixed by just listing jar files; in
this case it does indeed contain jar files AND regular directories ???
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