code: public static void setInputKeyCobolContext(Job job, Class<? extends CobolContext> cobolContext) {
        job.getConfiguration().setClass(CONF_INPUT_KEY_COBOL_CONTEXT, cobolContext, CobolContext.class);
      }
docs: Sets the job input key mainframe COBOL parameters (including code page).
  
  @param job The job to configure.
  @param cobolContext The input key mainframe COBOL parameters.