ClassNotFoundException在onSaveInstanceState中扩展MapFragment一个类中读取可序列化的对象

I have a class extending the SupportMapFragment where i load some data from backend and display the Markers. I also have another fragment which i display the details corresponding to the selected marker on the map. I am displaying the details fragment below the map in portrait mode and side by side in landscape.I have a class extending the SupportMapFragment