Hi all, I just execute the sampleclient to read some values. The method readValue can retrieve correct value from simulator，but when I change it to readValues it seems doesn’t work. I got status_code “Bad_NodeIdUnknown” in response.
I wonde Is there a known issue or something wrong with my code ？ Thanks in advance.

sdk version : Prosys OPC UA SDK for Java v4.3.0-1075

code :
public static void main(String[] args) throws Exception {
UaClient client = new UaClient(“opc.tcp://192.168.0.109:53530/OPCUA/SimulationServer”);
client.setSecurityMode(SecurityMode.NONE);
initialize(client);
client.connect();
DataValue value = client.readValue(Identifiers.Server_ServerStatus_State);

setVarsNode(client);

System.out.println(metrics.size());

DataValue v2 = client.readValue(metrics.get(0));
// v2 returned correct value. DataValue(value=1.0453014, statusCode=GOOD (0x00000000) “”, sourceTimestamp=07/02/20 04:09:01.0000000 GMT, sourcePicoseconds=0, serverTimestamp=07/02/20 04:09:01.9120000 GMT, serverPicoseconds=0)
System.out.println(v2);

// values and values2 both return “Bad_NodeIdUnknown”
DataValue[] values = client.readValues(new ExpandedNodeId[metrics.size()], null, TimestampsToReturn.Both, 0d);
for (DataValue data : values) {
System.out.println(data.getValue());
}
DataValue[] values2 = client.readValues(new NodeId[metrics2.size()], null, TimestampsToReturn.Both, 0d);
for (DataValue data : values2) {
System.out.println(data.getValue());
}
client.disconnect();
}

// metrics structure
public static List metrics = new ArrayList();
public static List metrics2 = new ArrayList();

//—————-
I found the problem, nothing to do with sdk. It’s a code issue.