Unable to Read data.

Hi all,

I'm relatively new to DLMS and associated development. I'm trying to build a Tridium Niagara driver for DLMS. I am using the sources from
https://mvnrepository.com/artifact/org.gurux/gurux.dlms/4.0.24
https://mvnrepository.com/artifact/org.gurux/gurux.net/1.0.21
https://mvnrepository.com/artifact/org.gurux/gurux.common/1.0.17
in my own project directory as I want to make changes to the library and use it accordingly.
PFA my project structure (projectStructure.png).
I am using the simulated server from https://github.com/Gurux/gurux.dlms.java/tree/master/gurux.dlms.server… as the meter.

I was able to read data from the server perfectly when I used the jars alone (maven dependency download and build) instead of adding the souces to my project. However, since I included the sources I am having a couple of errors:

1. Compile error in gurux\dlms\asn\GXPkcs8.java (https://github.com/Gurux/gurux.dlms.java/blob/aa4fd90704cdf87add5f14af8…) line 112. The error is as follows:
"Usage of API documented as @since 1.9+" in intelliJ.

To cirumvent this compiler error I changed the line from
PKCS8EncodedKeySpec ecpks = new PKCS8EncodedKeySpec(data, tmp.get(0).toString());
to
PKCS8EncodedKeySpec ecpks = new PKCS8EncodedKeySpec(data);
which led a sucessfull compilation and then to error 2 listed below.

2. After compilation, my module could connect to the server successfully but could not read any attributes, as every read call would lead to the error https://github.com/Gurux/gurux.dlms.java/blob/aa4fd90704cdf87add5f14af8… (line 273)
"Failed to receive reply from the device in given time." in the client side (my module).
And the error on server side had many along the lines of
Invalid HDLC Frame: d6 Expected: b6
Invalid HDLC Frame: d6 Expected: b6
Invalid HDLC Frame: f8 Expected: b6
Invalid HDLC Frame: f8 Expected: b6
Invalid HDLC Frame: 1a Expected: b6

Am I doing something wrong here? Any help would be deeply appriciated!!
Should I post the complete rx tx logs?

Thanks and regards,
Mithun
Leanovate Solutions