javax.net.ssl.SSLHandshakeException：收到致命警报：握手APN中

javax.net.ssl.SSLHandshakeException: Received fatal alert: handshake_failure

这是我的代码……

String token="95076d2846e8979b46efd1884206a590d99d0f3f6139d947635ac4186cdc5942";

String host = "gateway.sandbox.push.apple.com";
int port = 2195;
String payload = "{"aps":{"alert":"Message from Java o_O"}}";

NotificationTest.verifyKeystore("res/myFile.p12","password",false);
KeyStore keyStore = KeyStore.getInstance("PKCS12");
keyStore.load(getClass().getResourceAsStream("res/myFile.p12"),"password".toCharArray());

KeyManagerFactory keyMgrFactory = KeyManagerFactory.getInstance("SunX509");
keyMgrFactory.init(keyStore,"password".toCharArray());

SSLContext sslContext = SSLContext.getInstance("TLS");
sslContext.init(keyMgrFactory.getKeyManagers(),null,null);
SSLSocketFactory sslSocketFactory = sslContext.getSocketFactory();

SSLSocket sslSocket = (SSLSocket) sslSocketFactory.createSocket(host,port);
String[] cipherSuites = sslSocket.getSupportedCipherSuites();
sslSocket.setEnabledCipherSuites(cipherSuites);
sslSocket.startHandshake();

char[] t = token.toCharArray();
byte[] b = Hex.decodeHex(t);

OutputStream outputstream = sslSocket.getOutputStream();

outputstream.write(0);
outputstream.write(0);
outputstream.write(32);
outputstream.write(b);
outputstream.write(0);
outputstream.write(payload.length());
outputstream.write(payload.getBytes());

outputstream.flush();
outputstream.close();

System.out.println("Message sent .... ");

对于NotificationTest.verifyKeystore,我得知这个有效的是File和Keystore.

我不明白为什么我会收到这个错误.

这是我的错误日志……

** CertificateRequest
Cert Types: RSA,DSS,ECDSA
Cert Authorities:
<empty>
[read] MD5 and SHA1 hashes: len = 10
0000: 0D 00 00 06 03 01 02 40 00 00 .......@..
** ServerHelloDone
[read] MD5 and SHA1 hashes: len = 4
0000: 0E 00 00 00 ....
** Certificate chain
**
** ClientKeyExchange,RSA PreMasterSecret,TLSv1
[write] MD5 and SHA1 hashes: len = 269
...
main,READ: TLSv1 Alert,length = 2
main,RECV TLSv1 ALERT: fatal,handshake_failure
main,called closeSocket()
main,handling exception: javax.net.ssl.SSLHandshakeException: Received fatal alert: handshake_failure

我不明白为什么证书颁发机构是空的？