JNDI Lookup in Websphere

Question

Hi All,
I am trying out a simple program using JNDI which works fine when I run it as a standalone program, but when I run the same inside Embedded Websphere (eWAS), I get a NamingContextPackage not found exception.
Here is my Standalone program:
public class TestLDAP {
final static String ldapServerName = "myHost:389";
final static String rootdn = "cn=Manager,dc=abc,dc=com";
final static String rootpass = "secret";
final static String rootContext = "dc=abc,dc=com";
public static void main( String[] args ) throws Exception {
Properties env = new Properties();
env.put( Context.INITIAL_CONTEXT_FACTORY,
"com.sun.jndi.ldap.LdapCtxFactory" );
env.put( Context.PROVIDER_URL, "ldap://" + ldapServerName + "/" + rootContext );
env.put( Context.SECURITY_PRINCIPAL, rootdn );
env.put( Context.SECURITY_CREDENTIALS, rootpass );
try {
// obtain initial directory context using the environment
DirContext ctx = new InitialDirContext(env);
OracleDataSource ods = new OracleDataSource();
ods.setDriverType ( "thin" ); // type of driver
ods.setServerName ( "myHost" ); // database server name
ods.setNetworkProtocol("tcp"); // tcp is the default anyway
ods.setDatabaseName("ORCL"); // Oracle SID
ods.setPortNumber(1521); // listener port number
ods.setUser("scott");
ods.setPassword("tiger");
//ctx.unbind("cn=myRandomInt");
bindObjectInLDAP("cn=myRandomInt", ods, ctx);
getObjectFromLDAP("cn=myRandomInt", ctx);
} catch ( NameAlreadyBoundException nabe ) {
System.err.println( "value has already been bound!" );
} catch ( Exception e ) {
System.err.println( e );
private static void bindObjectInLDAP(String name, Object obj, DirContext ctx) throws Exception{
System.out.println("Adding " + obj + " to directory..." );
ctx.bind(name, obj);
private static void getObjectFromLDAP(String name, DirContext ctx) throws Exception {
DataSource dsUsingJNDI = (DataSource) ctx.lookup(name);
System.out.println("Retreived: " + dsUsingJNDI);
Connection connection = dsUsingJNDI.getConnection();
System.out.println( "SUCCESS!" + connection);
try {
if( connection != null )
connection.close();
} catch (SQLException ignore ) {}
}Inside websphere, when I run the same code, I can create the Inital Context, but it fails at the part where I do:
DataSource dsUsingJNDI = (DataSource) ctx.lookup(name);
Here is the Exception I get:
Could not lookup:
javax.naming.NameNotFoundException: Context: ImpactCell/nodes/ImpactNode/servers/server1, name: cn=myRandomInt: First component in name cn=myRandomInt not found. [Root exception is org.omg.CosNaming.NamingContextPackage.NotFound: IDL:omg.org/CosNaming/NamingContext/NotFound:1.0]
at com.ibm.ws.naming.jndicos.CNContextImpl.processNotFoundException(CNContextImpl.java:4730)
at com.ibm.ws.naming.jndicos.CNContextImpl.doLookup(CNContextImpl.java:1907)
at com.ibm.ws.naming.jndicos.CNContextImpl.doLookup(CNContextImpl.java:1862)
at com.ibm.ws.naming.jndicos.CNContextImpl.lookupExt(CNContextImpl.java:1552)
at com.ibm.ws.naming.jndicos.CNContextImpl.lookup(CNContextImpl.java:1354)
at com.ibm.ws.naming.util.WsnInitCtx.lookup(WsnInitCtx.java:172)
at javax.naming.InitialContext.lookup(InitialContext.java:363)
Caused by: org.omg.CosNaming.NamingContextPackage.NotFound: IDL:omg.org/CosNaming/NamingContext/NotFound:1.0
Is this because of a missing jar or probably websphere doesn't like "com.sun.jndi.ldap.LdapCtxFactory" or something else?
Any clues on what could be causing this?
Thanks in advance!

Answer 1

I'm having the same problem:
Jun 6, 2006 8:16:36 PM com.ibm.ws.naming.util.Helpers
WARNING: jndiGetObjInstNoop
java.lang.ClassCastException: javax.naming.Reference
     at com.test.jms.Sender.main(Sender.java:33)
Adding <WAS_HOME>/lib/dynacache.jar into the classpath solved the problem.
My environment is: WAS 6.0.0.1, WebSphere MQ 6.0, JMS Client Java Application running in RAD 6.0