<ldap:context-source id="contextSource"
        url="ldaps://xxx.xxx.xx:636"

username="cn=xx,ou=apps,dc=xxx,dc=xxx"
    base="ou=people,dc=xxx,dc=xxx"
    password="xxx"
 />

<bean id="ldapTemplate" class="org.springframework.ldap.core.LdapTemplate">
        <constructor-arg ref="contextSource" />
</bean>

private LdapName buildDn(String value) {
    return LdapNameBuilder.newInstance()
                    .add("cn", "FIRST LAST")
                    .build();
}

public Person findById(String cn){
   LdapName dn = buildDn(cn);
   EsbLdapPerson p = null;
   p = ldapTemplate.lookup(dn, PERSON_CONTEXT_MAPPER);
   return p;
}

    I get a error at lookup Caused by: javax.naming.NameNotFoundException: [LDAP: error code 32 - No Such Object]; remaining name 'cn=FIRST LAST' error.

Lookup by "uid"  works fine.
    Any help is appreciated.