OrmLite and Gson problems with ForeignCollection

Someone faced the problem of Ormlite and Gson, Gson cannot work with ForeignCollection. How did you solve this problem?

My class to turn into json

public class Building { @DatabaseField(dataType = DataType.INTEGER, columnName = "id", generatedId = true) private int id; @DatabaseField(dataType = DataType.STRING, columnName = "name") private String address; @ForeignCollectionField(eager = true) private ForeignCollection<Person> persons; } public class Person { @DatabaseField(dataType = DataType.INTEGER, columnName = "id", generatedId = true) private int id; @DatabaseField(dataType = DataType.STRING, columnName = "name") private String name; @DatabaseField (foreign = true, foreignAutoRefresh = true) public Building building; }