RFR(XXS): 8039348: -XX:+TraceDeoptimization -XX:+Verbose -Xcomp can crash VM

[Markus Grönlund]

Greetings,

 

Kindly asking for reviews for this small fix:

 

Bug: https://bugs.openjdk.java.net/browse/JDK-8039348 

Webrev: http://cr.openjdk.java.net/~mgronlun/8039348/webrev01/ 

 

Found when debugging:

-XX:+TraceDeoptimization -XX:+Verbose -Xcomp

 

Using -Xcomp can cause an uncommon trap in java/lang/String constructors before the [C value field has been assigned.

 

Thanks

Markus
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