public void setOptMLower(boolean optMLower) {
    checkCanSetRenameOption("-m");
    if (optMLower && optMUpper) {
      throw new IllegalArgumentException(ExceptionMessageMap.getMessage("000120")
          + "  -m cannot be used with -M.");
    } 
    this.optMLower = optMLower;
  }
public void setOptMLower(boolean optMLower) {
    checkCanSetRenameOption("-m");
    if (optMLower && optMUpper) {
      throw new IllegalArgumentException(ExceptionMessageMap.getMessage("000120")
          + "  -m cannot be used with -M.");
    } 
    this.optMLower = optMLower;
  }
public void setOptMLower ( boolean optMLower ) { checkCanSetRenameOption ( "-m" ) ; if ( optMLower && optMUpper ) { throw new IllegalArgumentException ( ExceptionMessageMap . getMessage ( "000120" ) + "  -m cannot be used with -M." ) ; } this . optMLower = optMLower ; }
Checks whether the -m option should be set and sets it.

@param optMLower True if the -m option should be used, false otherwise.
Checks whether the - m option should be set and sets it .