refactor: java reflection -> kotlin reflection으로 수정

app/src/main/java/woowacourse/shopping/ui/common/ViewModelFactory.kt

@@ -2,23 +2,19 @@ package woowacourse.shopping.ui.common
 
 import androidx.lifecycle.ViewModel
 import androidx.lifecycle.ViewModelProvider
+import kotlin.reflect.full.primaryConstructor
+import kotlin.reflect.jvm.jvmErasure
 
 class ViewModelFactory : ViewModelProvider.Factory {
  override fun <T : ViewModel> create(modelClass: Class<T>): T {
- val constructor = modelClass.declaredConstructors.first()
+ val constructor = modelClass::class.primaryConstructor
  requireNotNull(constructor) { "Unknown ViewModel Class $modelClass" }
+ val params = constructor.parameters
 
- val types = constructor.parameterTypes
- val params = mutableListOf<Any?>()
-
- val properties = Container::class.java.declaredFields
- for (type in types) {
- val field = properties.first { it.type == type }
- ?: throw IllegalArgumentException("Can't find Property $type")
- field.isAccessible = true
- params.add(field.get(null))
+ val instances = params.map {
+ Container.getInstance(it.type.jvmErasure)
  }
 
- return constructor.newInstance(*params.toTypedArray()) as T
+ return constructor.call(*instances.toTypedArray()) as T
  }
 }