private PublicKey pubKey;     public PublicKey getPublic() throws IOException {
          return this.pubKey != null ? this.pubKey : super.getPublic();     }     public void init(File location) {
          File f = new File(location + ".pub");         if (f.exists()) {
              try {
                  this.initPubKey(new FileReader(f));             } catch (IOException var4) {
                  this.log.warn("Error reading public key file: {}", var4.toString());             }         }         super.init(location);     }     public void init(String privateKey, String publicKey) {
          if (publicKey != null) {
              this.initPubKey(new StringReader(publicKey));         }         super.init(privateKey, null);     }     private void initPubKey(Reader publicKey) {
          this.type = KeyType.DSA;         try {
              StringBuilder publicKeyString = new StringBuilder();             try (BufferedReader br = new BufferedReader(publicKey)) {
                  String keydata;                 while ((keydata = br.readLine()) != null) {
                      if (skipInvalid(keydata)) {
                          publicKeyString.append(keydata);                     }                 }                 this.pubKey = (new Buffer.PlainBuffer(Base64.decode(publicKeyString.toString()))).readPublicKey();             }         } catch (IOException var9) {
              this.log.warn("Error reading public key: {}", var9.toString());         }     }     private boolean skipInvalid(String keydata) {
          String regEx = "[-:\"]";         // 编译正则表达式         Pattern pattern = Pattern.compile(regEx);         // 忽略大小写的写法         // Pattern pat = Pattern.compile(regEx, Pattern.CASE_INSENSITIVE);         Matcher matcher = pattern.matcher(keydata);         // 字符串是否与正则表达式相匹配         return matcher.matches();     } //    public static class Factory implements net.schmizz.sshj.common.Factory.Named
    
      {
  //        public Factory() {
  //        } // //        public FileKeyProvider create() {
  //            return new SSH2KeyProvider(); //        } // //        public String getName() {
  //            return "SSH2"; //        } //    }