Here is the customer's report:

Date: Thu, 31 May 2001 13:30:06 +0100
From: "Jenner, Mark" <###@###.###>
Subject: Problem closing connections after using DirContext.getSchema()
To: ###@###.###

Hi,

I am using the DirContext.getSchema(String name) method to retrieve schema
information from my Netscape directory. However this method seems to
prevent the connection from closing properly. I have reproduced my sample
code below.

If I do not use the getSchema call then by watching the cn=monitor tree I
see the connection to my server disappear when I call close on dirCtx, which
is what matches what the JNDI tutorial says. However, when I use getSchema,
the connection does not disappear until the JVM exits, even though I call
close on both Contexts. This is a major problem for me since this code will
be inside a servlet and the JVM should not be exiting... I tried garbage
collecting as well but that didn't make a difference.

I am using:
version: Netscape-Directory/4.12 B00.195.0645
SunOS 5.6 Generic_105181-23 sun4u sparc SUNW,Ultra-Enterprise
The latest JNDI I could find: jndi112 & ldap103
I have tried Java 1.2.1, 1.2.2 and 1.3.0

Any help with this problem would be greatly appreciated.

Thanks,
Mark
###@###.###

--------------------------------------------
import java.io.InputStreamReader;
import java.io.BufferedReader;
import java.util.Hashtable;

import javax.naming.Context;
import javax.naming.NamingException;
import javax.naming.directory.DirContext;
import javax.naming.directory.InitialDirContext;

public class TestJNDI
{

  public static void main(String[] args)
    throws Exception
  {
    DirContext dirCtx;
    Hashtable ldapEnv = new Hashtable(5);
    ldapEnv.put(Context.INITIAL_CONTEXT_FACTORY,
"com.sun.jndi.ldap.LdapCtxFactory");
    ldapEnv.put(Context.PROVIDER_URL, "ldap://drkblondvws013");
    ldapEnv.put(Context.SECURITY_PRINCIPAL,
"uid=jennerm,ou=People,o=dresdnerkb.com");
    ldapEnv.put(Context.SECURITY_CREDENTIALS, "password");
    ldapEnv.put(Context.SECURITY_AUTHENTICATION, "simple");

    // Use this to pause at useful points
    BufferedReader br = new BufferedReader(new
InputStreamReader(System.in));

    System.out.println("1 Making connection...");
    dirCtx = new InitialDirContext(ldapEnv);

    System.out.println("2 Getting schema...");
    DirContext schema = dirCtx.getSchema("");
    schema.close();

    System.out.println("3 Press enter to close initial context...");
    br.readLine();
    dirCtx.close();

    System.out.println("4 The connection should be closed...");
    br.readLine();

    Runtime.getRuntime().gc();
    Runtime.getRuntime().runFinalization();

    System.out.println("5 Perhaps not, did garbage collecting help?...");
    br.readLine();
  }

}