In jdk8u Windows builds, hotspot warns if the cl.exe and link.exe versions are not the very specific version it recognises:
*** WARNING *** unrecognized cl.exe version 1913 (). Use FORCE_MSC_VER to override automatic detection.
*** WARNING *** unrecognized link.exe version 1413 (). Use FORCE_LD_VER to override automatic detection.
We should remove these warnings.
The supported Windows compiler remains VS2010 but it is possible to build with other compiler versions.