Thread: [HELP] unreported exceptions

hello there, i would like to ask is there a way to throw away all exception as i have errors of unreported exception everywhere and how to i get a key out from the object after casting it into an object.

Originally Posted by Paytheprice

hello there, i would like to ask is there a way to throw away all exception

You could wrap a block of code in a try / catch block and in the catch section, catch Exception and ignore it. I strongly urge you *NOT* to do this unless you also enjoy driving a motorcycle with a blindfold on and have your organ donor card with you.

as i have errors of unreported exception everywhere and how to i get a key out from the object after casting it into an object.

Perhaps we can better help you if you post your code and your exception messages.

Originally Posted by curmudgeon

You could wrap a block of code in a try / catch block and in the catch section, catch Exception and ignore it. I strongly urge you *NOT* to do this unless you also enjoy driving a motorcycle with a blindfold on and have your organ donor card with you.



Perhaps we can better help you if you post your code and your exception messages.

sorry for the double posting as when i came back to the old post it disappeared from where i put it and well, i couldnt find it. do i wrap the whole thing in a try /catch or catch them one by one?

 
myClient.java:34: error: unreported exception CertificateException; must be caug
ht or declared to be thrown
CertificateFactory certfac = CertificateFactory.getInstance("X.509");
                                                           ^
myClient.java:36: error: unreported exception FileNotFoundException; must be cau
ght or declared to be thrown
        FileInputStream CA = new FileInputStream ("ca.cer");
                             ^
myClient.java:37: error: unreported exception CertificateException; must be caug
ht or declared to be thrown
        Certificate CACert = certfac.generateCertificate(CA);
                                                        ^
myClient.java:38: error: unreported exception IOException; must be caught or dec
lared to be thrown
        CA.close();
                ^
myClient.java:44: error: unreported exception FileNotFoundException; must be cau
ght or declared to be thrown
                        FileInputStream server = new FileInputStream (serveruser
+".cer");
                                                 ^
myClient.java:45: error: unreported exception CertificateException; must be caug
ht or declared to be thrown
                Certificate serverCert = certfac.generateCertificate(server);
                                                                    ^
myClient.java:51: error: unreported exception IOException; must be caught or dec
lared to be thrown
while ((nRead = server.read(data, 0, data.length)) != -1) {
                           ^
myClient.java:54: error: unreported exception IOException; must be caught or dec
lared to be thrown
buffer.flush();
            ^
myClient.java:55: error: unreported exception IOException; must be caught or dec
lared to be thrown
        server.close();
                    ^
myClient.java:63: error: unreported exception FileNotFoundException; must be cau
ght or declared to be thrown
 FileInputStream fis = new FileInputStream(file);
                       ^
myClient.java:64: error: unreported exception IOException; must be caught or dec
lared to be thrown
 fis.read(sigBytes);
         ^
myClient.java:65: error: unreported exception IOException; must be caught or dec
lared to be thrown
 fis.close();
          ^
myClient.java:66: error: unreported exception Exception; must be caught or decla
red to be thrown
        boolean veri=verifySig(data,CACertPub,sigBytes);
                              ^
myClient.java:76: error: unreported exception FileNotFoundException; must be cau
ght or declared to be thrown
                                RandomAccessFile raf = new RandomAccessFile(clie
ntuser+".pk8", "r");
                                                       ^
myClient.java:77: error: unreported exception IOException; must be caught or dec
lared to be thrown
byte[] buf = new byte[(int)raf.length()];
                                     ^
myClient.java:78: error: unreported exception IOException; must be caught or dec
lared to be thrown
raf.readFully(buf);
             ^
myClient.java:79: error: unreported exception IOException; must be caught or dec
lared to be thrown
raf.close();
         ^
myClient.java:81: error: unreported exception NoSuchAlgorithmException; must be
caught or declared to be thrown
KeyFactory kf = KeyFactory.getInstance("RSA");
                                      ^
myClient.java:82: error: unreported exception InvalidKeySpecException; must be c
aught or declared to be thrown
PrivateKey ClientPriv = kf.generatePrivate(kspec);
                                          ^
myClient.java:92: error: unreported exception IOException; must be caught or dec
lared to be thrown
  out = new ObjectOutputStream(bos);
        ^
myClient.java:93: error: unreported exception IOException; must be caught or dec
lared to be thrown
  out.writeObject(Aesobj);
                 ^
myClient.java:95: error: unreported exception IOException; must be caught or dec
lared to be thrown
  out.close();
           ^
myClient.java:96: error: unreported exception IOException; must be caught or dec
lared to be thrown
  bos.close();
           ^
myClient.java:99: error: unreported exception IOException; must be caught or dec
lared to be thrown
                streamOut.writeUTF(asHex(aessend));
                                  ^
myClient.java:100: error: unreported exception Exception; must be caught or decl
ared to be thrown
                byte[] signatureaes=signData(aessend,ClientPriv);
                                            ^
myClient.java:101: error: unreported exception IOException; must be caught or de
clared to be thrown
                streamOut.writeUTF(AESEncrypt(AESKey,asHex(signatureaes)));
                                  ^
myClient.java:113: error: unreported exception Exception; must be caught or decl
ared to be thrown
                byte[] signature=signData(encryptedline.getBytes(),ClientPriv);
                                         ^
myClient.java:162: error: unreported exception NoSuchAlgorithmException; must be
 caught or declared to be thrown
  KeyGenerator keyGenerator = KeyGenerator.getInstance("AES");
                                                      ^
myClient.java:178: error: unreported exception NoSuchAlgorithmException; must be
 caught or declared to be thrown
  Cipher cipher = Cipher.getInstance("RSA/ECB/PKCS1Padding");
                                    ^
myClient.java:179: error: unreported exception InvalidKeyException; must be caug
ht or declared to be thrown
  cipher.init(Cipher.ENCRYPT_MODE,ClientPriv);
             ^
myClient.java:180: error: unreported exception IllegalBlockSizeException; must b
e caught or declared to be thrown
  byte[] firstcipher=cipher.doFinal(Aestxt);
                                   ^
myClient.java:181: error: unreported exception InvalidKeyException; must be caug
ht or declared to be thrown
  cipher.init(Cipher.ENCRYPT_MODE,ServerPub);
             ^
myClient.java:182: error: unreported exception IllegalBlockSizeException; must b
e caught or declared to be thrown
  byte[] seccipher= cipher.doFinal(firstcipher);
                                  ^
myClient.java:190: error: unreported exception NoSuchAlgorithmException; must be
 caught or declared to be thrown
  Cipher c = Cipher.getInstance("AES");
                               ^
myClient.java:192: error: unreported exception InvalidKeyException; must be caug
ht or declared to be thrown
c.init(Cipher.ENCRYPT_MODE, AESKey);
      ^
myClient.java:194: error: unreported exception IllegalBlockSizeException; must b
e caught or declared to be thrown
byte[] ciphertxt=c.doFinal(Ptxt);
                          ^
Note: myClient.java uses or overrides a deprecated API.
Note: Recompile with -Xlint:deprecation for details.
36 errors