message: Use SourceVersion#latest instead of latestSupported
  latestSupported doesn't work if the JDK is newer than the compiler
  version; see bazelbuild/bazel#7776
  Fixed
diff: @@ -74,7 +74,7 @@ public final class OperatorProcessor extends AbstractProcessor {
  @Override
  public SourceVersion getSupportedSourceVersion() {
  - return SourceVersion.latestSupported();
  + return SourceVersion.latest();
  }
  @Override
  