Snap for 10453563 from 6852f0fba8b5c7341af68a69daaa9b8f0e4d0c65 to mainline-conscrypt-release

Change-Id: Ibe951d3ef49df616a75d3a67dcff6c5c2d0c6125
diff --git a/Android.bp b/Android.bp
index a2eddc0..ee82683 100644
--- a/Android.bp
+++ b/Android.bp
@@ -35,4 +35,9 @@
     srcs: ["src/**/*.java"],
     libs: ["guava"],
     java_resource_dirs: ["src"],
+    errorprone: {
+        javacflags: [
+            "-Xep:PreconditionsInvalidPlaceholder:WARN",
+        ],
+    },
 }