[15] RFR(XS): 8244946: fatal error: memory leak: allocating without ResourceMark with -XX:+Verbose -Xlog:methodhandles

[Christian Hagedorn]

Hi

Please review the following patch:
https://bugs.openjdk.java.net/browse/JDK-8244946
http://cr.openjdk.java.net/~chagedorn/8244946/webrev.00/

This simply fixes a missing ResourceMark required to call 
Klass::oop_print_on().

The reason for the missing ResourceMark in oop_print_on() is stated in 
the RFR [1] for JDK-8222893 [2] which removed the ResourceMark due to a 
bug:

"print functions with outputStream should not have a ResourceMark 
because you could call it with a LogStream or stream that was allocated 
outside the resource mark. The caller needs the ResourceMark."

There are other places like Klass::print_on(outputStream*) where this is 
still the case. Should we file an RFE to clean these up?

Thank you!

Best regards,
Christian


[1] 
https://mail.openjdk.java.net/pipermail/hotspot-runtime-dev/2019-May/034095.html
[2] https://bugs.openjdk.java.net/browse/JDK-8222893