[10] RFR(XS): 8184009: Missing null pointer check in InterpreterRuntime::update_mdp_for_ret()

[Tobias Hartmann]

Hi,

please review the following patch that adds a missing null check (guarantee) found by Parfait:
https://bugs.openjdk.java.net/browse/JDK-8184009
http://cr.openjdk.java.net/~thartmann/8184009/webrev.00/

Tested with JPRT and RBT (running).

Thanks,
Tobias