I had a custom class extended ChildPropertyTreeModel and implements Serializable. I ve made it Serialized with SerializedTreeModel. And this class was in another project(structure) in another word war deployment package's web-inf/lib has contained this class. After i replaced the SerializedTreeModel class location into the same package with refered project, eventually solved the problem. I could not understand the magic honestly.
public class SerializedTreeModel extends ChildPropertyTreeModel implements Serializable
{
public SerializedTreeModel(Object dataList, String dataChild)
{
super(dataList, dataChild);
}
}