Add java.vm.name to process.runtime.description & more examples.

[Oberon00]

Add java.vm.name to process.runtime.description. I think (except for Eclipse J9), the result reads cleaner and is more informative.

Related: open-telemetry/opentelemetry-java#1908 (comment)

[anuraaga]

Thanks for even finding the name for Android :-)

[Oberon00]

Caveat: I did not actually try this on on Android, but just googled around. The most official source I found was https://android.googlesource.com/platform/art/+/master/openjdkjvmti/ti_properties.cc but Stackoverflow concurs.

[arminru]

Technically this is a breaking change of existing semantics but I would not expect any back end to actually parse this value but rather just display it as-is. If there are no objections, I'm fine with it.

Please add a changelog to make people aware of it, however.

[Oberon00]

Technically this is a breaking change of existing semantics.

Hmm, in the strictest sense it is, but if you just look at the attribute description, it says Java instrumentation should fill in and the description for process.runtime still says "An additional description about the runtime of the process, for example a specific vendor customization of the runtime environment".

I think this description is something that we should encourage people not to parse, and we should add runtime-specific attributes if desired e.g. jvm.prop.java.vm.name to contain the system property java.vm.name.

Please add a changelog to make people aware of it, however.

This is not yet implemented in opentelemetry-java and I made them aware on the respective issue open-telemetry/opentelemetry-java#1908. A changelog entry still makes sense though, will do. EDIT: Done in 6e87835. Also rebased to get the checks in order.