Update Java grpc package version 0.1.17 (#454)

diff --git a/gapic/packaging/api_defaults.yaml b/gapic/packaging/api_defaults.yaml
index 19926b1..c802751 100644
--- a/gapic/packaging/api_defaults.yaml
+++ b/gapic/packaging/api_defaults.yaml
@@ -39,7 +39,7 @@
   ruby:
     lower: '0.6.8'
   java:
-    lower: '0.1.15'
+    lower: '0.1.17'
 
 generated_ga_package_version:
   java: