question: protected Object decodeResponse ( InputStream inputStream , String contentType ) throws IOException { Object value ; if ( contentType . startsWith ( JSON_MIME_TYPE ) ) { JSONDecoder decoder = new JSONDecoder ( ) ; value = decoder . readValue ( inputStream ) ; } else if ( contentType . startsWith ( TEXT_MIME_TYPE_PREFIX ) ) { TextDecoder decoder = new TextDecoder ( ) ; value = decoder . readValue ( inputStream ) ; } else { value = null ; } return value ; }
target:  Decodes a response value.