MFStandardConnection.getApplicationDirectory returns null

[valenj4]

I'm using Nokia 6212 emulator and omnikey cardman 5321 and I want to connect to Mifare 4k.
Establishing connection is ok but getApplicationDirectory allways returns null.
I tried to read data using read function and it reads correct data.
This code snippet is part of targetDetected function.

String uri = properties[0].getUrl(properties[0].getConnectionNames()[0]);
MFStandard connection = (MFStandardConnection) Connector.open(uri);
MFApplicationDirectory dir = connection.getApplicationDirectory(); //dir = null
int res = connection.read(new MFKey.KeyA(key), buffer, 0, 0, 64); //ok, res = 64

I can't find where is a problem.
Thanks for replies.

[mayankkedia]

I'm using Nokia 6212 emulator and omnikey cardman 5321 and I want to connect to Mifare 4k.
Establishing connection is ok but getApplicationDirectory allways returns null.
I tried to read data using read function and it reads correct data.
This code snippet is part of targetDetected function.

String uri = properties[0].getUrl(properties[0].getConnectionNames()[0]);
MFStandard connection = (MFStandardConnection) Connector.open(uri);
MFApplicationDirectory dir = connection.getApplicationDirectory(); //dir = null
int res = connection.read(new MFKey.KeyA(key), buffer, 0, 0, 64); //ok, res = 64

I can't find where is a problem.
Thanks for replies.

Did you check this, the original poster seems to have got it working.

Cheers,
Mayank

[valenj4]

Conditions are set to 0 1 0 (read with key A|B, write never) for block 0 and 1 0 0 (read with key A|B, write with key B) for blocks 1 and 2. Conditions for sector trailer are set to 0 1 1 (both keys may be only written with key B, conditions can be read with both keys and written with key B).
I think that is not a problem.