Spring ldap unlocking an account

I am trying to unlock user account using spring ldap and getting the error message ""Malformed 'LockoutTime' attribute value" exception.

My code looks like below

public boolean unlockAccount(Name dn) {
        ModificationItem item = new ModificationItem(DirContext.REPLACE_ATTRIBUTE, new BasicAttribute("lockoutTime", 0));
        ldapTemplate.modifyAttributes(dn, new ModificationItem[] {item});
        return true;
}

I am using Windows server 2016 and Spring ldap 2.3.2.

Is 'lockoutTime' the correct attribute to unlock an account ? Is there anything else I am missing ?

In LDAP if you type the wrong password for more than 5 times, the account gets locked. If you want to unlock the user you have to delete an operational attribute name as pwdAccountLockedTime.

    public String unlockUser(Users pvo) {
    System.out.println("this is pvo" + pvo);

    Name dn = buildDn(pvo);
    DirContextOperations context = ldapTemplate.lookupContext(dn);
    ModificationItem[] modificationItems;
    modificationItems = new ModificationItem[1];

    modificationItems[0] = new ModificationItem(DirContext.REMOVE_ATTRIBUTE,
            new BasicAttribute("pwdAccountLockedTime"));

    ldapTemplate.modifyAttributes(dn, modificationItems);

    return "Account Unlocked";
}

build Dn for your LDAP and use the above code then the user gets unlocked.