RFR(XXS): Event Based tracing framework trace_id's to be reassigned for CDS klasses

[Markus Grönlund]

Greetings,

 

Kindly asking for reviews for the following very small fix:

 

Bug: https://bugs.openjdk.java.net/browse/JDK-8041723 

Webrev: http://cr.openjdk.java.net/~mgronlun/8041723/webrev01/

 

Description:

The Event Based tracing framework assigns a unique traceid to Klass:es for tracking purposes. 
Normally, a new Klass is assigned it's traceid inside the Klass constructor. 
For Klass:es coming into the system via the ClassDataSharing (CDS) mechanism, the old traceid for the Klass will be stale, hence a "new" traceid needs to be (re)assigned to the Klass.

 

Thank you

Markus
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