Merge topic 'findjava'

d95988c8c3 FindJNI: use modern foreach() syntax
7e4fe71633 FindJNI: use 2-space indents
88411fd629 FindJNI: use cmake_host_system_info to query registry
b56d4e041a FindJava: use cmake_host_system_info to query registry
bab9a23724 FindJava: use modern foreach() syntax

Acked-by: Kitware Robot <kwrobot@kitware.com>
Merge-request: !8818