gistfile1.c

typedef struct {
	JNIEnv *env;
	jobject jobj;
} tox_jni_callback;

static void friendrequest_callback(Tox *tox, uint8_t *publickey,
		uint8_t *message, uint16_t *length, tox_jni_callback *data) {
	printf("%s", "meh\n");
	fflush(stdout);

	JNIEnv *env = data->env; // Segfault
	printf("%s", "muh\n");
	fflush(stdout);

	jstring str = (*env)->NewStringUTF(env, message);
	jclass clazz = (*data->env)->GetObjectClass(data->env, data->jobj);
	printf("%s", "Successfully got clazz\n");
	fflush(stdout);

	jmethodID method = (*data->env)->GetMethodID(data->env, clazz,
			"executeOnFriendRequestCallback",
			"(Ljava/lang/String;Ljava/lang/String;)V");
	char address[ADDR_SIZE_HEX] = {0};
	addr_to_hex(publickey, address);
	jstring _address = (*data->env)->NewStringUTF(data->env, address);
	jstring _message = (*data->env)->NewStringUTF(data->env, message);
	(*data->env)->CallVoidMethod(data->env, data->jobj, method, _address, _message);

}

JNIEXPORT void JNICALL Java_im_tox_jtoxcore_JTox_tox_1callback_1friendrequest(
		JNIEnv * env, jobject obj, jlong messenger) {

	tox_jni_callback callback = { env, obj };
	tox_callback_friendrequest((Tox *) messenger,
			(void *) friendrequest_callback, &callback);
}