XMLStreamReader encoding

I have some characters from Unicode Extension B Chinese / Japanese / Korean set in my XML:

𠀀𠀁𠀂𠀃𠀄𪛔𪛕𪛖 

      

        
        
        
      

    

But when I use streamReader.getText () it returns:

ࠀ

      

        
        
        
      

    

Does anyone know if the Java XMLStreamReader encoding scheme for Unicode characters can be changed?

It works with common East Asian characters, not the Unicode B extension.