return the previously-configured context singleton instance . if no such context has been configured , this methodthrows a systemfailureexception . concode_field_sep SingletonInitialContext SINGLETON concode_field_sep Context getInitialContext concode_elem_sep void initialize concode_elem_sep void tearDown
Context function ( ) { if ( SINGLETON == null ) { throw new SystemFailureException ( ) ; } return SINGLETON ; }