[9] RFR(S): 8151724: Remove -XX:GenerateCompilerNullChecks

[Tobias Hartmann]

Hi,

please review the following patch.

https://bugs.openjdk.java.net/browse/JDK-8151724
http://cr.openjdk.java.net/~thartmann/8151724/webrev.00/

The flag -XX:GenerateCompilerNullChecks is develop and was originally added for performance testing without null checks in compiled code. Today, the compilers crash with various asserts if null checks are disabled and I would therefore like to remove the flag.

Tested with JPRT and RBT.

Thanks,
Tobias