const char *ev_name_cstr = (*env)->GetStringUTFChars(env, ev_name, &iscopy);
const char *args_cstr = (*env)->GetStringUTFChars(env, args, &iscopy);
const char *ev_name_cstr = (*env)->GetStringUTFChars(env, ev_name, &iscopy);
const char *args_cstr = (*env)->GetStringUTFChars(env, args, &iscopy);