Android package signing: Empty "Certificate alias" list

This bug is similar to:
https://bugreports.qt-project.org/browse/QTCREATORBUG-10944

The key store password is asked every time in a infinite loop.

I have debugged the "AndroidDeployQtStep::keystoreCertificates()" and the problem is that the method exits in the line 527:

 
        if (!keytoolProc.waitForStarted() || !keytoolProc.waitForFinished()) {
            QMessageBox::critical(0, tr("Error"),
                                  tr("Failed to run keytool."));
            return 0;
        }

It is not possible to execute the command. If I try to execute the same command with the same argument from command line I get:

$ export LANG=C
$ keytool -list -v -keystore /Users/jose/Devel/U1Files.keystore -storepass XXXX

Tipo de almac?n de claves: JKS
Proveedor de almac?n de claves: SUN

Su almac?n de claves contiene entrada 1

Nombre de alias: u1files
Fecha de creaci?n: 14-dic-2013
Tipo de entrada: PrivateKeyEntry
Longitud de la cadena de certificado: 1
Certificado[1]:
Propietario: CN=Jose Exposito, O=Egg-Software, L=Madrid, C=ES, OU=Egg-Software, ST=Madrid
Emisor: CN=Jose Exposito, O=Egg-Software, L=Madrid, C=ES, OU=Egg-Software, ST=Madrid
N?mero de serie: 52ab9beb
V?lido desde: Sat Dec 14 00:44:43 CET 2013 hasta: Wed May 01 01:44:43 CEST 2041
Huellas digitales del certificado:
MD5: F2:07:48:C3:83:AE:49:E5:CE:D4:08:86:19:90:F4:3D
SHA1: E1:3A:9A:CD:1A:7A:BC:CC:89:F5:E5:40:54:75:B7:6A:B1:78:E5:05
Nombre del algoritmo de firma: SHA1withRSA
Versi?n: 3

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Note that my system is in Spanish, I don't know if this could be a problem at parsing... Exporting LANG=C don't change the output of keytool at all.

And, as you can see in the output, my keytool have an alias, but it is not showed in the combobox.

Please, don't hesitate to ask me for more debugging or information, I'm really interested in update my App...