What are you trying to achieve?

Share the same attributes across traces/metrics/logs. I do understand that the logs.attributes (this was a surprise that even attributes are different) and especially the body (not surprised about this) can be more generic than the traces and metrics, see https://github.com/open-telemetry/opentelemetry-specification/blob/main/specification/logs/data-model.md#field-attributes and https://github.com/open-telemetry/opentelemetry-specification/blob/main/specification/logs/data-model.md#field-body.

What did you expect to see?

Clear requirement in the bridge-api to support adding the "standard attributes" as well, since there are semantic conventions generate (example in go) that use the old style attributes.

Additional context.

Currently because of the logs data model saying that log record attributes are different than span/metrics attributes and that the bridge api reference to that https://github.com/open-telemetry/opentelemetry-specification/blob/main/specification/logs/bridge-api.md#emit-a-logrecord

Java offers only support to add the "old style" attributes as attributes, see https://github.com/open-telemetry/opentelemetry-java/blob/main/api/all/src/main/java/io/opentelemetry/api/logs/LogRecordBuilder.java

Go offers only the more generic way, and I cannot share the attributes easily, see https://github.com/open-telemetry/opentelemetry-go/blob/main/log/record.go#L112