private void checkMissingKeys() {
private void checkMissingKeys(RefactoringStatus status) {
    private void checkMissingKeys() {        for (int i = 0; i < fSubstitutions.length; i++) {            NLSSubstitution substitution = fSubstitutions[i];            if ((substitution.getValue() == null) && (substitution.getKey() != null)) {                showErrorStatus(true);                return;                            }                    }	    showErrorStatus(false);    }