Different String formats

Hi,
I'm trying to read some objects, but sometimes I get wrong/different String. Reading methods are described lower.

This is console output when I read just specific attribute.
-------- Reading GXDLMSData 0.0.42.0.0.255 Ch. 0 COSEM Logical device name
Index: 1 Value: 00 00 2A 00 00 FF

This output I get, when I read whole object.
-------- Reading GXDLMSData 0.0.42.0.0.255 Ch. 0 COSEM Logical device name
Index: 1 Value: 0.0.42.0.0.255
Index: 2 Value: 47 75 72 75 78 31 32 33 34 35 36

I'm using similar methods from GXDLMSReader - getReadOut(), edited to get only 1 GXDLMSObject. Second method has another parameter int for atribute.

parameters GXDLMSObject it, int pos/atribute

writeTrace("-------- Reading " + it.getClass().getSimpleName() + " "
+ it.getName().toString() + " " + it.getDescription(),
TraceLevel.INFO);
for (int pos : ((IGXDLMSBase) it).getAttributeIndexToRead(true)) { //this for is not used if atribute is
specified
try {
Object val = read(it, pos);
showValue(pos, val);
} catch (Exception ex) {
writeTrace("Error! Index: " + pos + " " + ex.getMessage(),
TraceLevel.ERROR);
writeTrace(ex.toString(), TraceLevel.ERROR);
// Continue reading.
}
}

I'm also trying to read multiple objects using readList. What is the best option to print those values.
I tried to add these lines to end of method readList() in GXDLMSReader.

for(int i=0; i<list.size(); i++) {
GXDLMSObject it = list.get(i).getKey();
System.out.println("-------- Reading " + it.getClass().getSimpleName() + " "+ it.getName().toString() + " " + it.getDescription());
showValue(list.get(i).getValue(), values.get(i));
}
With this solution, I have same problem as described before (Wrong string formats).