Substituir o split na CLDC 1.0

public Object[] split (String string, char caracter) {
        char[] vetor = string.toCharArray();
        ArrayList retorno = new ArrayList();
        String aux ="";
        for (int i =0 ;i<vetor.length;i++){
            if (vetor[i]==caracter || i==vetor.length-1) {
                retorno.add(aux);
                aux="";
                continue;
            }
            aux += String.valueOf(vetor[i]);
        }
        retorno.add(aux);
        return retorno.toArray();
    }