高手来啊，为什么用java读取的证书DN信息乱码？C++,C#都没有问题，第一贴没人回复。。。。，有能力的来。。。。

base64证书： 
-----BEGIN CERTIFICATE----- 
MIIDzzCCAzigAwIBAgIGAQi+et8KMA0GCSqGSIb3DQEBBQUAMEQxCzAJBgNVBAYT 
AkNOMRMwEQYDVQQKHgoAWABQAGEAcwBzMREwDwYDVQQLHgiLwU5mTi1fwzENMAsG 
A1UEAx4EAEMAQTAiGA8yMDA2MDExMjAwMDAwMFoYDzIwMTYwMTEyMDAwMDAwWjBA 
MQswCQYDVQQGEwJDTjETMBEGA1UECh4KAFgAUABhAHMAczEPMA0GA1UECx4GTqdU 
wZDoMQswCQYDVQQDHgIAYTCBnzANBgkqhkiG9w0BAQEFAAOBjQAwgYkCgYEAzXUx 
xvkUGZpWHGTWAjCnWWEnHumCKMz9TK3F7PKD/gXdLCOhPUueN1M0m1RgCapp+EeE 
QjEIHrHdBCKAkmIQ0EWvRTyG+wDPfZihtVdvMui0k5KXrU4NSQjtx4eUS2ePN7MU 
fiWycyXkgZbQaFBvpDcdLZDkjnwKEB6hRsidSt8CAwEAAaOCAcowggHGMHkGA1Ud 
HwRyMHAwNaAzoDGGL2h0dHA6Ly8xOTIuMTY4LjEuMTE4OjgwODAvQ0Evb3Blbi9H 
ZXRDUkxTZXJ2bGV0MDegNaAzhjFodHRwOi8vc3NsdnBuLjMzMjIub3JnOjgwODAv 
Q0Evb3Blbi9HZXRDUkxTZXJ2bGV0MIIBHAYDVR0gBIIBEzCCAQ8wggELBgtghkgB 
hvhFAQcBATCB+zA4BggrBgEFBQcCARYsaHR0cHM6Ly8xOTIuMTY4LjEuMTE4Ojg0 
NDMvQ0EvdW5pc3NsL0NQUy5qc3AwOgYIKwYBBQUHAgEWLmh0dHBzOi8vc3NsdnBu 
LjMzMjIub3JnOjg0NDMvQ0EvdW5pc3NsL0NQUy5qc3AwgYIGCCsGAQUFBwICMHYw 
FBYNWDUwOSBSJkQgVGVhbTADAgEBHl4AQwBQAFMAIABvAGYAIABDAEEAQgB1AGkA 
bABkAGUAcgAgAGYAbwByACAAWABQAGEAcwBzACwAIABBAGwAbAAgAHIAaQBnAGgA 
dAAgAHIAZQBzAGUAcgB2AGUAZAAuMAkGA1UdEwQCMAAwCwYDVR0PBAQDAgD4MBEG 
CWCGSAGG+EIBAQQEAwIAoDANBgkqhkiG9w0BAQUFAAOBgQByd7KhbzeZFq7jPPEL 
Bkj6vrjgd/T+/Qwx4gux+9Oeaj5LEvbzf2vKA+ro5zAdWL+qSL4oF3xiCDKcaJHz 
OYkRKJnK9/ekG813nEO1t168xZdgZX9/vFshWOapIZQHB1b+u+W7pR5wWvJWSfZC 
+KHEnH7YcEoS82C+K3KuazhovA== 
-----END CERTIFICATE----- 代码：（摘自jdk1.5.chm) 
InputStream inStream = new FileInputStream("D:\\abase64.cer"); 
CertificateFactory cf = CertificateFactory.getInstance("X.509"); 
X509Certificate cert = (X509Certificate)cf.generateCertificate(inStream); 
inStream.close(); 
String dn = cert.getSubjectX500Principal().getName(); Eclipse显示：CN=*a,OU=N*TP*,O=*X*P*a*s*s,C=CN 
C++,C#,windows显示：C=CN, O=XPass, OU=产品部, CN=a 
(这个才是没有问题的）
这是为什么？