Send an activity from C# to Java

Hi Everyone!

I have a problem sending a variable of type Activity from C# to Java.

The following source code is what I did in C#:

 public static string TestJava()
     {
         string somestring = "";
 
         playerClass = new AndroidJavaClass("com.unity3d.player.UnityPlayer");
         activity = playerClass.GetStatic<AndroidJavaObject>("currentActivity");
         pluginClass = new AndroidJavaClass("com.Vector3GameStudio.GoogleMobileAds.GoogleMobileAdsActivity");
 
         try
         {
             pluginClass.CallStatic("Test", activity );
         }
         catch
         {
             somestring += "ERROR invoking Test";
         }
 
         return somestring;
     }

And the following source code is the Java method who it will recieve the Activity.

 public static void Test(Activity currentActivity)
 {
         // Doesn't get here at all
 }

If I change the parameter Activity in the Java method by String, int and so on, the code works well but if I change it by an Activity, the java invocation doesn't work.

Could someone help me with that?

Thank you in advance!