egeria: [BUG] ClassCastException at getSchemaTypeForElement (Asset-Manager)

Existing/related issue?

No response

Current Behavior

When we try to get the schema type through the REST or Java API (LineageIntegratorContext) the egeria server returns an error message with a ClassCastException.

POST

{{mds-baseURL}}/servers/{{mds-server}}/open-metadata/access-services/asset-manager/users/{{user}}/parents/{{asset-type}}/{{asset-guid}}/schema-types/retrieve?forLineage=true&forDuplicateProcessing=true

with body

{ “effectiveTime”: null, “assetManagerGUID” : “{{asset-manager-guid}}”, “assetManagerName”: “{{asset-manager-name}}” }

Response

{
    "class": "SchemaTypeElementResponse",
    "relatedHTTPCode": 500,
    "exceptionClassName": "org.odpi.openmetadata.frameworks.connectors.ffdc.PropertyServerException",
    "exceptionCausedBy": "java.lang.ClassCastException",
    "actionDescription": "getSchemaTypeForElement",
    "exceptionErrorMessage": "OMAG-GENERIC-HANDLERS-500-001 An unsupported bean class named org.odpi.openmetadata.accessservices.assetmanager.metadataelements.SchemaTypeElement was passed to the repository services by the getSchemaTypeForElement request for open metadata access service Asset Manager OMAS on server mds1; error message was: class org.odpi.openmetadata.accessservices.assetmanager.metadataelements.SchemaTypeElement cannot be cast to class org.odpi.openmetadata.accessservices.assetmanager.properties.SchemaTypeProperties (org.odpi.openmetadata.accessservices.assetmanager.metadataelements.SchemaTypeElement and org.odpi.openmetadata.accessservices.assetmanager.properties.SchemaTypeProperties are in unnamed module of loader org.springframework.boot.loader.LaunchedURLClassLoader @7b69c6ba)",
    "exceptionErrorMessageId": "OMAG-GENERIC-HANDLERS-500-001",
    "exceptionErrorMessageParameters": [
        "org.odpi.openmetadata.accessservices.assetmanager.metadataelements.SchemaTypeElement",
        "getSchemaTypeForElement",
        "Asset Manager OMAS",
        "mds1",
        "class org.odpi.openmetadata.accessservices.assetmanager.metadataelements.SchemaTypeElement cannot be cast to class org.odpi.openmetadata.accessservices.assetmanager.properties.SchemaTypeProperties (org.odpi.openmetadata.accessservices.assetmanager.metadataelements.SchemaTypeElement and org.odpi.openmetadata.accessservices.assetmanager.properties.SchemaTypeProperties are in unnamed module of loader org.springframework.boot.loader.LaunchedURLClassLoader @7b69c6ba)"
    ],
    "exceptionSystemAction": "The system is unable to process the request because it is not able to instantiate the bean.",
    "exceptionUserAction": "Correct the code that initializes the converter during server start up."
}

Before we created the SchemaTypeChoice (type: EventTypeList) with the SchemaType (type: EventType) the following way:

private void ensureSchemaIsCatalogued(LineageEventContentforSample.AssetFromJSON assetFromJSON, String assetGUID) throws InvalidParameterException, PropertyServerException, UserNotAuthorizedException {
        SchemaTypeChoiceProperties schemaTypeChoiceProperties = new SchemaTypeChoiceProperties();
        schemaTypeChoiceProperties.setQualifiedName(assetFromJSON.getQualifiedName() + "-EventTypes");
        schemaTypeChoiceProperties.setDisplayName(assetFromJSON.getQualifiedName() + "-EventTypes");
        schemaTypeChoiceProperties.setTypeName("EventTypeList");
        String schemaTypeChoiceGUID = myContext.createSchemaType(assetManagerIsHome, schemaTypeChoiceProperties);
        for (LineageEventContentforSample.EventTypeFromJSON eventTypeFromJSON : assetFromJSON.getEventTypes()) {
            SchemaTypeProperties schemaTypeProperties = new SchemaTypeProperties();
            schemaTypeProperties.setTypeName("EventType");
            schemaTypeProperties.setQualifiedName(eventTypeFromJSON.getQualifiedName());
            schemaTypeProperties.setDisplayName(eventTypeFromJSON.getTechnicalName());
            String schemaTypeGUID = myContext.createSchemaType(assetManagerIsHome, schemaTypeProperties);
            myContext.setupSchemaElementRelationship(assetManagerIsHome, schemaTypeGUID, schemaTypeChoiceGUID, "SchemaTypeOption", null, null);
            for (LineageEventContentforSample.Attribute attribute : eventTypeFromJSON.getAttributes()) {
                createPrimitiveSchemaAttribute(schemaTypeGUID, attribute);
            }
        }
        myContext.setupSchemaTypeParent(assetManagerIsHome, schemaTypeChoiceGUID, assetGUID, "KafkaTopic", null, null);
 }

Expected Behavior

The REST call above should works like the following call through the data manager:

GET

{{mds-baseURL}}/servers/{{mds-server}}/open-metadata/access-services/data-manager/users/{{user}}/topics/{{asset-guid}}/event-types?startFrom=0&pageSize=0

This call returns returns us an EventTypeList with all EventTypes associated to the asset, the kafka topic. We expected to get the same or a similiar response on this endpoint

{{mds-baseURL}}/servers/{{mds-server}}/open-metadata/access-services/asset-manager/users/{{user}}/parents/{{asset-type}}/{{asset-guid}}/schema-types/retrieve?forLineage=true&forDuplicateProcessing=true

At best It should be possible to get this response through the Java API (LineageIntegratorConnector).

Steps To Reproduce

1. Create a DataAsset with multiple SchemaTypeElements by using SchemaTypeChoice/SchemaType
2. Try to get this information by calling the REST API with the following URL:

{{mds-baseURL}}/servers/{{mds-server}}/open-metadata/access-services/asset-manager/users/{{user}}/parents/{{asset-type}}/{{asset-guid}}/schema-types/retrieve?forLineage=true&forDuplicateProcessing=true

Environment

- Egeria: 3.15
- OS:
- Java: 11
- Browser (for UI issues):
- Additional connectors and integration:

Any Further Information?

No response