cecf/opentelemetry-java-instrumentation: java agent代码 @ 81f8bf6231c6b44cd1ef90fc88964d193e198f19

Lauri Tulmin 90a6ed76cd Update jvm metrics spec link (#9636)		1 rok temu
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javaagent	23acd5b4fd Migrate "runtime-metrics" test from groovy to java (#8928)	1 rok temu
library	90a6ed76cd Update jvm metrics spec link (#9636)	1 rok temu