NLSSubstitution[] subs = fNlsHolder.getSubstitutions();
NLSSubstitution[] subs = fSubstitutions;
    private boolean willModifySource() {        NLSSubstitution[] subs = fNlsHolder.getSubstitutions();        for (int i = 0; i < subs.length; i++) {            if (subs[i].hasChanged()) return true;        }        //if (willAddImportDeclaration()) return true;        return false;    }