Hi,

When try to read node with::
UnsignedInteger[] attribs = { Attributes.Value, Attributes.DataType, Attributes.DisplayName, Attributes.BrowseName };
DataValue[] value = uaClient.readAttributes(nodeId, attribs);

I am receiving next exception:

20.01.2016 15:43:23,174 DEBUG OpcUaServerBrowser.dumpOpcUaAddressSpace – Reference Description: parent Objects Organizes node 23
Exception in thread “TcpConnection/Read” java.lang.IllegalArgumentException: Variant cannot be org.opcfoundation.ua.builtintypes.Variant
at org.opcfoundation.ua.builtintypes.Variant.(Unknown Source)
at org.opcfoundation.ua.encoding.binary.BinaryDecoder.getVariant(Unknown Source)
at org.opcfoundation.ua.encoding.binary.BinaryDecoder.getDataValue(Unknown Source)
at org.opcfoundation.ua.encoding.binary.BinaryDecoder.getDataValueArray(Unknown Source)
at org.opcfoundation.ua.core.EncodeableSerializer$121.getEncodeable(Unknown Source)
at org.opcfoundation.ua.encoding.utils.AbstractSerializer.getEncodeable(Unknown Source)
at org.opcfoundation.ua.encoding.utils.SerializerComposition.getEncodeable(Unknown Source)
at org.opcfoundation.ua.encoding.binary.BinaryDecoder.getMessage(Unknown Source)
at org.opcfoundation.ua.transport.tcp.io.TcpConnection$ReadThread.run(Unknown Source)

I know that in this case the problem is on server side. Something is wrong with this node which I try to read. With UaExpert I am receiving:
Read attributes of node ‘NS1|Numeric|123’ failed [ret = BadEncodingError].

My problem is that I want to make my client more robust to skip this problematic node and to continue with browsing other nodes. I tried to catch this exception but looks it is impossible to catch as it is thrown in foundation lib.
It looks foundation has a bug as this IllegalArgumentException isn’t handled.

Could you please post your comment?

BR
Goran

PS
Opc.Ua.Stack-1.02.337.4
Prosys-OPC-UA-Java-SDK-Client-Binary-2.2.0-552