Create OUs in LDAP

App.java

package org.example;

import javax.naming.Context;
import javax.naming.NamingException;
import javax.naming.directory.Attribute;
import javax.naming.directory.Attributes;
import javax.naming.directory.BasicAttribute;
import javax.naming.directory.BasicAttributes;
import javax.naming.directory.DirContext;
import javax.naming.directory.InitialDirContext;
import java.util.Hashtable;

/**
 * Hello world!
 */
public class App {
    public static void main(String[] args) {
        System.out.println("Hello World!");

        Hashtable<String, String > environment = new Hashtable<String, String >();
        environment.put(Context.INITIAL_CONTEXT_FACTORY, "com.sun.jndi.ldap.LdapCtxFactory");
        environment.put(Context.SECURITY_AUTHENTICATION, "simple");
        environment.put(Context.REFERRAL, "follow");
        environment.put(Context.PROVIDER_URL, "ldap://localhost:10389");
        environment.put(Context.SECURITY_PRINCIPAL, "uid=admin,ou=system");
        environment.put(Context.SECURITY_CREDENTIALS, "admin");

        DirContext ctx;
        try{
            ctx = new InitialDirContext(environment);
            Attributes attrs = new BasicAttributes(true); // case-ignore
            Attribute objclass = new BasicAttribute("objectclass");
            objclass.add("top");
            objclass.add("organizationalUnit");
            attrs.put(objclass);
            ctx.createSubcontext("ou=test1,ou=Users,dc=wso2,dc=org", attrs);
        } catch (NamingException e) {
            e.printStackTrace();
        }
    }
}