open-telemetry/opentelemetry-java

AI Summary: This issue proposes an investigation into the feasibility and acceptability of extending the OpenTelemetry Java API and SDK to support new attribute types. It references existing specification guidelines for attribute evolution, a Go prototype demonstrating the concept, and related PRs in other OTel components (proto, specification) that aim to introduce these new types. The primary goal is to validate if such fundamental changes are suitable for the OpenTelemetry Java implementation.

AI Summary: The issue proposes extending the recently introduced optional low-allocation OTLP marshalers to the `OtlpJsonLogging{Signal}Exporters`. This feature was previously added to `OtlpGrpc{Signal}Exporter` and `OtlpHttp{Signal}Exporter` classes. The rationale is that `OtlpJsonLogging{Signal}Exporters` also utilize the same marshalers for writing JSON output, making the performance benefit relevant.

AI Summary: The task involves updating the OpenTelemetry configuration example (`kitchen-sink.yaml`) to include the `known_methods` attribute in the general section, as per the changes introduced in a related pull request for the Java instrumentation project. This ensures consistency and completeness in the configuration example.