I need this for properly fixing #6400 (support for grpc.enable_http_proxy channel arg was added in gRPC 1.14). @tetromino this is about the gRPC Java dependency. I believe you need https://github.com/bazelbuild/bazel/issues/2804 The Google auth library in third_party/auth is quite old.  It did not work with my company's proxy to GCS when I tried to use a GCS bucket as a remote cache.  It needs to be updated.
 See https://github.com/bazelbuild/bazel/pull/8017
remote: update grpc and google auth library to latest
third_party/BUILD
third_party/BUILD
diff --git a/third_party/BUILD b/third_party/BUILD
index c927b759969b42..90ab565687731f 100644
--- a/third_party/BUILD
+++ b/third_party/BUILD
@@ -226,8 +226,8 @@ java_import(
 java_import(
     name = "auth",
     jars = [
-        "auth/google-auth-library-oauth2-http-0.6.0.jar",
-        "auth/google-auth-library-credentials-0.6.0.jar",
+        "auth/google-auth-library-oauth2-http-0.15.0.jar",
+        "auth/google-auth-library-credentials-0.15.0.jar",
     ],
     runtime_deps = [
         ":api_client",
