IDE: Fire
Version: 9.0.97.2071, 9.1.100.2076
Target: Java
Description:
Run into really weird issue:
- I have a realm persistent object defined in Java library. Let’s call it rReport entity, this entity is a subclass of Object class defined in realm library.
- This realm persistent rReport class is extended in Silver.
- There is a container class Report that hides rReport inside, which has a base superclass BaseEntity.
BaseEntity:
public class BaseEntity {
public enum PersistenceKind {
#if os(Linux)
//will be implemented in future
case postgres
#else
case realm
#endif
}
#if os(Linux)
public private(set) var backingPersistenceKind: PersistenceKind = .postgres
internal var _persistentEntity: pgresObject
public init(persistentEntity: pgresObject){
_persistentEntity = persistentEntity
}
#else
public private(set) var backingPersistenceKind: PersistenceKind = .realm
internal var _persistentEntity: Object
public required init(persistentEntity: Object){
_persistentEntity = persistentEntity
}
#endif
#if COOPER
public static func instance(with persistentEntity: Object) -> Self {
return Self(persistentEntity: persistentEntity)
}
#endif
}
now this Report class has a following initializer:
public init(persistentEntityWithIdentifier identifier: String) throws {
let realm = try RealmGate.defaultRealm()
let thisInstancesInCurrentRealm = realm.objects(rCategory.self).where(field: FieldLiteral.identifier, equalsTo: identifier).all
if thisInstancesInCurrentRealm.count > 1 {
print("Unexpectedly found \(thisInstancesInCurrentRealm.count) instance when 1 is expected with identifier: \(identifier)")
}
guard let thisInstanceInCurrentRealm = thisInstancesInCurrentRealm.first else {
throw Error.EntityNotFound
}
//if you don't cast it to Object, the runtime (Verifier failed: bad method) exception will occur in Silver
super.init(persistentEntity: thisInstanceInCurrentRealm as Object)
}
Notice the last super.init call I need to cast thisInstanceInCurrentRealm to its superclass.
Without this cast on app launch I will get runtime (Verifier failed: bad method) exception