[9] RFR(XS): 8180855: Null pointer dereference in OopMapSet::all_do of oopMap.cpp:394

[Zoltán Majó]

Hi,


please review the following fix for 8180855.
https://bugs.openjdk.java.net/browse/JDK-8180855
https://bugs.openjdk.java.net/browse/JDK-8180855

We check if the contents of the memory location returned by 
oopmapreg_to_location() is NULL, but we do not check if the memory 
location itself is NULL. The fix adds the missing check. JPRT testing 
passes, RBT pre-PIT testing is in progress.

Thank you!

Best regards,


Zoltan