Just as C1 and C2 reuse java.lang.Thread instances in the context of UseDynamicNumberOfCompilerThreads, so too should libgraal as it will not create any more Java-level thread state (e.g. ThreadLocals) than C1 or C2.
            
- duplicates
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                    JDK-8319980 [JVMCI] libgraal should reuse Thread instances as C2 does -           
- Resolved
 
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 P4
  P4