class status { Contrast mContrast; } class Contrast { int mValue; <=これにアクセスしたいとき。 } JNIEXPORT jint JNICALL java_func( JNIENV *env, jobject thiz, jobject statusObject) { jfieldID contrastId = (*env)->GetFieldID(env, statusObject, "mContrast", "Ljp/co/myapp/Contrast;"); jobject contrastObject = (*env)->GetObjectField(env, statusObject, contrastId); jobject contrastClazz = (*env)->GetObjectClass(env,