Unable to read attributes in Gurux DLMS android

I am developing an android application using your gurux dlms android. I am getting a null values in the attributes due to no attribute count. Please tell me how to get the attribute values in gurux dlms android.
Here's the below code which i was using showObject method. Please help me with this :

StringBuilder sb = new StringBuilder();
String newline = System.getProperty("line.separator");
sb.append(target.getLogicalName());
if (target.getShortName() != 0)
{
sb.append(" (");
sb.append(String.valueOf(target.getShortName()));
sb.append(")");
}
sb.append(newline);
sb.append(target.getDescription());
sb.append(newline);
sb.append("------------------------------------------------------------------");
sb.append(newline);
for (int pos = 0; pos != target.getAttributeCount(); ++pos) {
sb.append(String.valueOf(target.getValues()[pos]));

sb.append(newline);

sb.append("------------------------------------------------------------------");
sb.append(newline);
}