diff --git a/play-services-api/src/main/aidl/com/google/android/gms/checkin/internal/ICheckinService.aidl b/play-services-api/src/main/aidl/com/google/android/gms/checkin/internal/ICheckinService.aidl
new file mode 100644
index 0000000..6ac6128
--- /dev/null
+++ b/play-services-api/src/main/aidl/com/google/android/gms/checkin/internal/ICheckinService.aidl
@@ -0,0 +1,5 @@
+package com.google.android.gms.checkin.internal;
+
+interface ICheckinService {
+    String getDeviceDataVersionInfo();
+}
diff --git a/play-services-api/src/main/java/com/google/android/gms/playlog/internal/LogEvent.java b/play-services-api/src/main/java/com/google/android/gms/playlog/internal/LogEvent.java
index 3f2469f..94f066b 100644
--- a/play-services-api/src/main/java/com/google/android/gms/playlog/internal/LogEvent.java
+++ b/play-services-api/src/main/java/com/google/android/gms/playlog/internal/LogEvent.java
@@ -47,7 +47,7 @@ public class LogEvent extends AutoSafeParcelable {
         return "LogEvent{" +
                 "eventTime=" + new Date(eventTime) +
                 ", tag='" + tag + '\'' +
-                ", data='" + new String(data) + '\'' +
+                ", data=" + (data == null ? "null" : ('\'' + new String(data) + '\'')) +
                 '}';
     }