Please review fix for 7196103: NPG: Unable to allocate bit map for parallel garbage collection for the requested heap size

Coleen Phillimore coleen.phillimore at
Fri Sep 7 04:22:11 PDT 2012

Summary: Don't allocate huge class metaspace size by default on x64

This was preventing other mmap regions from being initialized on windows 
64.  I also added some checking around the ClassMetaspaceSize option.  
1*M seems to be minimal for startup size

open webrev at


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