Packages 
Package Description
io.opentelemetry.sdk.trace
The OpenTelemetry SDK implementation of tracing.
io.opentelemetry.sdk.trace.data
The data format to model traces for export.
io.opentelemetry.sdk.trace.export
Utilities that allow tracing services to export data for sampled spans, as well as providing in-process span processing APIs.
io.opentelemetry.sdk.trace.samplers
This package contains Samplers for selecting traces that are recorded and exported.