Support source versions newer than 8 in Bazel's annotation processors

This quiets some build warnings.

PiperOrigin-RevId: 190958692
GitOrigin-RevId: eef80048e2c59e3be974144ce9cd90b9f90294fb
Change-Id: Ibf4e681bfc1ef540c2012df32d2970ed71240e65
1 file changed
tree: 945051a7b2e889e4f6aadd34b778e1852c3c1818
  1. java/
  2. test/