We need a test of the change from JDK-8166188 (ultimately pushed as JDK-8176100) that verifies a jweak dereference during G1 concurrent marking works properly.
Writing a reliable test for this was waiting for new test infrastructure provided byJDK-8169517.  Now that we have that, we can add the new test of the handling of jweak with G1.
            
Writing a reliable test for this was waiting for new test infrastructure provided by
- relates to
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                    JDK-8169517 WhiteBox should provide concurrent GC phase control -           
- Resolved
 
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                    JDK-8166188 G1 Needs pre barrier on dereference of weak JNI handles -           
- Closed
 
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