Merge branch 'stable-2.14' into stable-2.15

* stable-2.14:
  Add explanatory comment to empty BUILD file(s)
  Extract byte-buddy version to a constant

Change-Id: Ic8c1c69b5b3412cf978660e4931ddfeebf547ff4
diff --git a/external_plugin_deps.bzl b/external_plugin_deps.bzl
index 4cc865b..34eb7bf 100644
--- a/external_plugin_deps.bzl
+++ b/external_plugin_deps.bzl
@@ -11,9 +11,11 @@
         ],
     )
 
+    BYTE_BUDDY_VERSION = "1.9.3"
+
     maven_jar(
         name = "byte-buddy",
-        artifact = "net.bytebuddy:byte-buddy:1.9.3",
+        artifact = "net.bytebuddy:byte-buddy:" + BYTE_BUDDY_VERSION,
         sha1 = "f32e510b239620852fc9a2387fac41fd053d6a4d",
     )
 
diff --git a/tools/bzl/BUILD b/tools/bzl/BUILD
index e69de29..c5ed0b7 100644
--- a/tools/bzl/BUILD
+++ b/tools/bzl/BUILD
@@ -0,0 +1 @@
+# Empty file required by Bazel