question: adds a class to this source file . concode_field_sep List _importStatements concode_elem_sep File _file concode_elem_sep ResourceBundle _messages concode_elem_sep String _packageBlock concode_elem_sep List _classes concode_field_sep void setPackage concode_elem_sep void save concode_elem_sep String toString concode_elem_sep ResourceBundle getMessages concode_elem_sep void addImport
target: void function ( final JavaClassWriter arg0 ) { if ( arg0 != null ) _classes . add ( arg0 ) ; }