crash on RealmList<RealmAny> updates observing

[vcimka]

SDK and version

SDK : io.realm:realm-gradle-plugin
Version: 10.6.0

Observations

• How frequent do the crash occur? - always
• Can the crash be reproduced by you? - yes
• Can you provide instructions for how we can reproduce it? - yes

Crash log / stacktrace

E/REALM: /tmp/realm-java@2/realm/realm-library/src/main/cpp/realm-core/src/realm/object-store/impl/deep_change_checker.cpp:164: [realm-core-11.0.2] Unreachable code
    <backtrace not supported on this platform>!!! IMPORTANT: Please report this at https://github.com/realm/realm-core/issues/new/choose

Steps & Code to Reproduce

  class MainActivity : AppCompatActivity(), CoroutineScope {
  
      override val coroutineContext: CoroutineContext = SupervisorJob() + Dispatchers.IO
  
      override fun onCreate(savedInstanceState: Bundle?) {
          super.onCreate(savedInstanceState)
          setContentView(R.layout.activity_main)
  
          initDb()
          observeChanges()
          launch {
              (0..10).forEach {
                  saveEntities()
                  delay(300)
              }
          }
      }
  
      private fun initDb() {
          Realm.init(applicationContext)
  
          val directory =
              File(applicationContext.filesDir.absolutePath + File.separator + "app_db")
  
          val config = RealmConfiguration.Builder()
              .directory(directory)
              .deleteRealmIfMigrationNeeded()
              .build()
  
          Realm.setDefaultConfiguration(config)
      }
  
      private fun observeChanges() {
          val realm = Realm.getDefaultInstance()
  
          val listener = RealmChangeListener<RealmResults<TestEntity>> {
              it.forEach { entity ->
                  Log.e("Test", "${entity.id} with innerCount: ${entity.items?.size}")
              }
          }
  
          realm.where(TestEntity::class.java).findAllAsync().addChangeListener(listener)
      }
  
      private fun saveEntities() {
  
          val realm = Realm.getDefaultInstance()
          val from = Random.nextInt(30, 100)
          val to = Random.nextInt(100, 10000)
  
          val entities = (from..to).realmMap {
  
              val innerEntities = (0..10).realmMap {
                  RealmAny.valueOf(
                      TestInnerEntity(
                          id = it.toLong()
                      )
                  )
              }
  
              TestEntity(
                  id = it.toLong(),
                  items = innerEntities
              )
          }
  
          realm.executeTransaction {
              it.copyToRealmOrUpdate(entities)
          }
      }
  
      inline fun <T, R> Iterable<T>.realmMap(transform: (T) -> R): RealmList<R> {
          return mapTo(RealmList(), transform)
      }
  }

open class TestEntity( @PrimaryKey var id: Long = 0, var items: RealmList<RealmAny>? = null ) : RealmObject()

open class TestInnerEntity( @PrimaryKey var id: Long = 0 ) : RealmObject()

[ironage]

@Stefanos65535 thanks for reporting this, there is a fix underway.

[vcimka]

any updates?

[ironage]

Hi @Stefanos65535 the fix has been released in realm-java 10.6.1. Please try it out and let us know if you have any further issues.