Copy object's all fields by reflect

ObjectExtension.kt

inline fun <reified T : Any> mergeFields(from: T, to: T, acceptNULL: Boolean = false) {
	from::class.java
		.declaredFields
		.forEach { field ->
			val isLocked = field.isAccessible
			field.isAccessible = true
			val value = field.get(from)
			if (acceptNULL || value != null) {
				field.set(to, field.get(from))
			}
			field.isAccessible = isLocked
		}
}