Unity2017にAdmobメディエーションでAppLovinSDKをいれたら、UnityEditor上でエラーがでる ref: http://qiita.com/matsuyoro/items/2f5a07cf23980dda0c4c

file0.txt

Exception: JNI: Init'd AndroidJavaClass with null ptr!
UnityEngine.AndroidJavaClass..ctor (System.IntPtr jclass) (at /Users/builduser/buildslave/unity/build/Runtime/Export/AndroidJavaImpl.cs:622)
UnityEngine.AndroidJavaObject.get_JavaLangClass () (at /Users/builduser/buildslave/unity/build/Runtime/Export/AndroidJavaImpl.cs:600)
UnityEngine.AndroidJavaObject.FindClass (System.String name) (at /Users/builduser/buildslave/unity/build/Runtime/Export/AndroidJavaImpl.cs:591)
UnityEngine.AndroidJavaClass._AndroidJavaClass (System.String className) (at /Users/builduser/buildslave/unity/build/Runtime/Export/AndroidJavaImpl.cs:611)
UnityEngine.AndroidJavaClass..ctor (System.String className) (at /Users/builduser/buildslave/unity/build/artifacts/generated/common/runtime/AndroidJavaBindings.gen.cs:92)
AppLovin.getDefaultPlugin () (at Assets/Plugins/AppLovin/AppLovin.cs:106)
AppLovin.SetSdkKey (System.String sdkKey) (at Assets/Plugins/AppLovin/AppLovin.cs:560)
GameSceneSingleton.RequestRewardBasedVideo () (at Assets/Scripts/Common/GameSceneSingleton.cs:232)
GameManager.Awake () (at Assets/Scripts/Common/GameManager.cs:371)

file1.txt

AppLovin.SetSdkKey(Constant.SDK_APPLOVIN_API_KEY);
AppLovin.InitializeSdk();

file2.txt

#if UNITY_EDITOR
// Do not process with unityEditor

#elif UNITY_ANDROID
// AppLovin
AppLovin.SetSdkKey(Constant.SDK_APPLOVIN_API_KEY);
AppLovin.InitializeSdk();


#elif UNITY_IOS
#endif