diff --git a/framework/udc-extended-api/lint-baseline.txt b/framework/udc-extended-api/lint-baseline.txt
new file mode 100644
index 0000000..2f4004a
--- /dev/null
+++ b/framework/udc-extended-api/lint-baseline.txt
@@ -0,0 +1,4 @@
+// Baseline format: 1.0
+VisiblySynchronized: android.net.NetworkInfo#toString():
+    Internal locks must not be exposed (synchronizing on this or class is still
+    externally observable): method android.net.NetworkInfo.toString()