StringBuffer sb = new StringBuffer(""); sb.append("ProtectionDomain (" + linesep);
StringBuffer sb = new StringBuffer("ProtectionDomain (").append(linesep);
    public String toString() {        String linesep = System.getProperty("line.separator");        StringBuffer sb = new StringBuffer("");        sb.append("ProtectionDomain (" + linesep);        if (code_source == null)            sb.append("CodeSource:null" + linesep);        else            sb.append(code_source + linesep);        sb.append(perms);        sb.append(linesep + ")" + linesep);        return sb.toString();    }