IssueTracker

Component used: Room
Version used: 1.1.0-alpha2
Devices/Android versions reproduced on: compile error

Error:(8, 1) Gradle: error: Entity class must be annotated with @Entity
public class MetadataXmp2 {
       
I can't seem to implement @Relation.  I simplified the entities I'm using to this:

@Entity(tableName = "meta")
public class MetadataEntity2 {
    @PrimaryKey(autoGenerate = true)
    public long id;
    public float rating;
    public String label;
}

public class MetadataXmp2 /* or extends MetadataEntity2 */ {
    @Embedded
    public MetadataEntity2 metadata;
    @Relation(
        parentColumn = "id",
        entityColumn = "metaId",
        projection = "subjectId",
        entity = SubjectJunction.class)
    public List<Long> subjectIds;

    @Relation(
        parentColumn = "id",
        entityColumn = "id",
        projection = "documentUri",
        entity = FolderEntity.class)
    public List<String> parentUris;
}

I have an extension of the original MetadataEntity that works fine without @Relation.  Am I missing a limitation here?