4.0.0 io.prometheus simpleclient_tracer 0.15.0 simpleclient_tracer_otel bundle Prometheus Java Span Context Supplier - OpenTelemetry io.prometheus simpleclient_tracer_common ${project.version} io.opentelemetry opentelemetry-api provided org.apache.maven.plugins maven-compiler-plugin 1.8 1.8 The Apache Software License, Version 2.0 http://www.apache.org/licenses/LICENSE-2.0.txt repo