JNDI Failure - OutOfMemoryError

From: Richard Williams <rwilliam_at_cst-hsv.com>
Date: Thu, 21 Feb 2002 17:07:44 -0600
Message-ID: <BMsd8.490$hK4.230322@e420r-atl1.usenetserver.com>

Has anyone seen the problem below -

When I first started trying to do this I was getting failures to instantiate LDAPCtxFactory errors. I resolved this by NOT loading the jndi.jar, ldap.jar, and providerutil.jar classes to my schema, but relying on the ones already in the Oracle JServer.

I have been given JAVASYSPRIV and have also tried using dbms_java.grant_permission for the setFactory java.lang.RuntimePermission and granting the java.net.SocketPermission for connect and resolve to my explicit ldap url.

I'm really stumped.

Here is the Java Code

---

package com.cst.portal.security;

import javax.naming.*;

import javax.naming.directory.*;

import java.util.*;

public class LDAPTest {

public static void main (String[] args) {

System.out.println(getInitialDirContext());

}

public static String getInitialDirContext () {

String result = "";

Hashtable env = new Hashtable();

env.put(Context.INITIAL_CONTEXT_FACTORY,

"com.sun.jndi.ldap.LdapCtxFactory");

env.put(Context.PROVIDER_URL,

"ldap://myserver.mycompany.com:389");

try {

// Where the code dies

DirContext ctx = new InitialDirContext(env);

return "SUCCESS";

}

catch (Exception e) {

System.out.println (e.getMessage());

return "FAILURE - " + e.getMessage();

}

}

}

---

This gets published to the database as the following package

---

PACKAGE EXTAUTH AUTHID CURRENT_USER AS FUNCTION GETINITIALDIRCONTEXT RETURN VARCHAR2 AS LANGUAGE JAVA NAME 'com.cst.portal.security.LDAPTest.getInitialDirContext() return java.lang.String';

END EXTAUTH;

---

When the Java Stored procedure is called with this PL/SQL

---

DECLARE result VARCHAR2(255);

BEGIN dbms_java.SET_OUTPUT(2000);

result := EXTAUTH.getInitialDirContext();

dbms_output.put_line(result);

END;

---

This is the result on dbms_out

---

java.lang.OutOfMemoryError

at java.lang.Thread.start(Thread.java)

at com.sun.jndi.ldap.Connection.<init>(Connection.java:170)

at com.sun.jndi.ldap.LdapClient.<init>(LdapClient.java:85)

at com.sun.jndi.ldap.LdapCtx.connect(LdapCtx.java:2251)

at com.sun.jndi.ldap.LdapCtx.<init>(LdapCtx.java:210)

at
com.sun.jndi.ldap.LdapCtxFactory.getInitialContext(LdapCtxFactory.java:83)

at javax.naming.spi.NamingManager.getInitialContext(NamingManager.java)

at javax.naming.InitialContext.getDefaultInitCtx(InitialContext.java)

at javax.naming.InitialContext.init(InitialContext.java)

at javax.naming.InitialContext.<init>(InitialContext.java)

at javax.naming.directory.InitialDirContext.<init>(InitialDirContext.java)

at com.cst.portal.security.LDAPTest.getInitialDirContext(LDAPTest.java:20)

Richard Williams

CTO Computer Systems Technology, Inc.

Huntsville, AL

Voice: 256-890-3076

Email: rwilliam_at_cst-hsv.com Received on Thu Feb 21 2002 - 17:07:44 CST