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When SDL tries to perform:

  (*env)->SetStaticBooleanField(env, mActivityClass, fid, separate_mouse_and_touch ? JNI_TRUE : JNI_FALSE); in SDL_androidtouch.c

it gets and application crashes:

F/art     (18534): art/runtime/check_jni.cc:65] JNI DETECTED ERROR IN APPLICATION: static jfieldID 0x8767b4c8 not valid for class java.lang.Class<com.pascal.opengltest.GameActivity>
F/art     (18534): art/runtime/check_jni.cc:65]     in call to SetStaticBooleanField
F/art     (18534): art/runtime/check_jni.cc:65]     from long android.app.NativeActivity.loadNativeCode(java.lang.String, java.lang.String, android.os.MessageQueue, java.lang.String, java.lang.String, java.lang.String, int, android.content.res.AssetManager, byte[])
F/art     (18534): art/runtime/check_jni.cc:65] "main" prio=5 tid=1 Runnable

I got workaround by replacing method with this:

static void
SeparateEventsHintWatcher(void *userdata, const char *name,
                          const char *oldValue, const char *newValue)
{
    jclass mActivityClass = Android_JNI_GetActivityClass();
    JNIEnv *env = Android_JNI_GetEnv();
    jmethodID fid = (*env)->GetStaticMethodID(env, mActivityClass, "setSeparateMouseAndTouch", "(Z)V");

    separate_mouse_and_touch = (newValue && (SDL_strcmp(newValue, "1") == 0));
    jboolean val = separate_mouse_and_touch ? JNI_TRUE : JNI_FALSE;
    (*env)->CallStaticVoidMethod(env, mActivityClass, fid, val);
}      

an creating in SDLActivity.java method:

    public static void setSeparateMouseAndTouch(boolean value)
    {
      mSeparateMouseAndTouch = value;
    }