Download and Install JXPlorer (from http://pegacat.com/jxplorer/)
Install Apache Directory (Maven2 is required) (from http://directory.apache.org/)
java -jar apacheds-main-%APACHEDS_VERSION%.jar main\server.xml
The default connection configuration for admin user is:
localhost or the server hostname10389uid=admin,ou=systemsecret
Import the newuser.ldif with the explorer
The result is:

Find entries which match with "cn=John*"