add overwrite class

Change-Id: Ib5aa8123eb4dbc5ca637773ba7debaa151d9c365
diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..2e88c07
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1 @@
+classes/service/