--- a/mobile/android/thirdparty/com/adjust/sdk/ActivityHandler.java
+++ b/mobile/android/thirdparty/com/adjust/sdk/ActivityHandler.java
@@ -708,21 +708,30 @@ public class ActivityHandler extends Han
         packageHandler.sendFirstPackage();
 
         if (updateActivityState(System.currentTimeMillis())) {
             writeActivityState();
         }
     }
 
     private void readActivityState() {
-        activityState = Util.readObject(adjustConfig.context, ACTIVITY_STATE_FILENAME, ACTIVITY_STATE_NAME);
+        try {
+            // readObject is a generic object, and can therefore return arbitrary generic objects
+            // that might not match the expected type. Therefore there will be an implicit cast
+            // here, which can fail:
+            activityState = Util.readObject(adjustConfig.context, ACTIVITY_STATE_FILENAME, ACTIVITY_STATE_NAME);
+        } catch (ClassCastException e) {
+        }
     }
 
     private void readAttribution() {
-        attribution = Util.readObject(adjustConfig.context, ATTRIBUTION_FILENAME, ATTRIBUTION_NAME);
+        try {
+            attribution = Util.readObject(adjustConfig.context, ATTRIBUTION_FILENAME, ATTRIBUTION_NAME);
+        } catch (ClassCastException e) {
+        }
     }
 
     private void writeActivityState() {
         Util.writeObject(activityState, adjustConfig.context, ACTIVITY_STATE_FILENAME, ACTIVITY_STATE_NAME);
     }
 
     private void writeAttribution() {
         Util.writeObject(attribution, adjustConfig.context, ATTRIBUTION_FILENAME, ATTRIBUTION_NAME);