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  1. Realm Kotlin
  2. RKOTLIN-1086

ClassCastException: UnmanagedRealmList cannot be cast to ManagedRealmList

      How frequently does the bug occur?

      Always

      Description

      object RealmWorker {
          val realm: Realm
          init {
              val config = RealmConfiguration.create(
                  schema = setOf(FeedR::class, FeedItemR::class, FeedMediaR::class)
              )
              realm = Realm.open(config)
          }
      }
      
      class FeedR : RealmObject { ... 
          @JvmField
          var items: RealmList<FeedItemR> = realmListOf()
      
          fun fromFeed(feed: Feed) {
              ...
              this.items = realmListOf<FeedItemR>().apply {
                  for (item in feed.items) {
                      val itemR = FeedItemR()
                      itemR.fromFeedItem(item)
                      add(itemR)
                  }
              }
          }
      }
      
      
                              val feedR = FeedR()
                              feedR.fromFeed(result_.feed)
                              realm.writeBlocking {
                                  copyToRealm(feedR)
                              }
      
      

      Stacktrace & log output

      Unable to find source-code formatter for language: shell. Available languages are: actionscript, ada, applescript, bash, c, c#, c++, cpp, css, erlang, go, groovy, haskell, html, java, javascript, js, json, lua, none, nyan, objc, perl, php, python, r, rainbow, ruby, scala, sh, sql, swift, visualbasic, xml, yaml
      java.lang.ClassCastException: io.realm.kotlin.internal.UnmanagedRealmList cannot be cast to io.realm.kotlin.internal.ManagedRealmList
                                                                                                          	at io.realm.kotlin.internal.RealmObjectHelper.assignTyped$io_realm_kotlin_library(RealmObjectHelper.kt:797)
                                                                                                          	at io.realm.kotlin.internal.RealmObjectHelper.assign$io_realm_kotlin_library(RealmObjectHelper.kt:734)
                                                                                                          	at io.realm.kotlin.internal.RealmUtilsKt.copyToRealm(RealmUtils.kt:220)
                                                                                                          	at io.realm.kotlin.internal.RealmUtilsKt.copyToRealm$default(RealmUtils.kt:144)
                                                                                                          	at io.realm.kotlin.internal.InternalMutableRealm$DefaultImpls.copyToRealm(InternalMutableRealm.kt:57)
                                                                                                          	at io.realm.kotlin.internal.SuspendableWriter$WriterRealm.copyToRealm(SuspendableWriter.kt:58)
                                                                                                          	at io.realm.kotlin.MutableRealm$DefaultImpls.copyToRealm$default(MutableRealm.kt:88)
                                                                                                          	at ac.mdiq.podcini.ui.fragment.OnlineFeedViewFragment$parseFeed$1$result$1$1.invoke(OnlineFeedViewFragment.kt:406)
                                                                                                          	at ac.mdiq.podcini.ui.fragment.OnlineFeedViewFragment$parseFeed$1$result$1$1.invoke(OnlineFeedViewFragment.kt:405)
                                                                                                          	at io.realm.kotlin.internal.SuspendableWriter$write$2.invokeSuspend(SuspendableWriter.kt:125)
                                                                                                          	at kotlin.coroutines.jvm.internal.BaseContinuationImpl.resumeWith(ContinuationImpl.kt:33)
      

      ```

      Can you reproduce the bug?

      Always

      Reproduction Steps

      No response

      Version

      SDK 33, 34

      What Atlas App Services are you using?

      Local Database only

      Are you using encryption?

      No

      Platform OS and version(s)

      Manjaro 24.0

      Build environment

      Android Studio version: IntelliJ IDEA 2024.1.1 (Community Edition)
      Android Build Tools version: 34
      Gradle version: 8.5

      BTW, it's my first attempt to integrate Realm in my open source project, hoping to replace SQLite. If someone suspect something I do could cause this exception, please make some suggestions.

            Assignee:
            Unassigned Unassigned
            Reporter:
            unitosyncbot Unito Sync Bot
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              Created:
              Updated:
              Resolved: