[jira] [Created] (PLC4X-201) OPC-UA PlcList underlying type not compatible with Eclipse Milo

["Alessandro Rossignoli (Jira)" <ji...@apache.org>]

Alessandro Rossignoli created PLC4X-201:
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             Summary: OPC-UA PlcList underlying type not compatible with Eclipse Milo
                 Key: PLC4X-201
                 URL: https://issues.apache.org/jira/browse/PLC4X-201
             Project: Apache PLC4X
          Issue Type: Bug
          Components: Driver-OPC-UA
    Affects Versions: 0.7.0
            Reporter: Alessandro Rossignoli


java.util.Collections$UnmodifiableRandomAccessList is not compatible with Eclipse Milo built-in types.

When writing to the OPC-UA driver a simple array of Double, I receive the following error:

[org.eclipse.milo.opcua.stack.core.serialization.OpcUaBinaryStreamEncoder:608]: Not a built-in type: class java.util.Collections$UnmodifiableRandomAccessList

When writing a single value in the array the type is PlcDouble instead of PlcList, and there is no error.

 

I think that a possible solution could be changing the underlying type, or better to change the getter for the value.

[https://github.com/apache/plc4x/blob/4a74ff526aeb57e978005e37c878fe55021462aa/plc4j/api/src/main/java/org/apache/plc4x/java/api/value/PlcList.java#L46]

I will try to find myself a solution and I will keep you posted.



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