javax.mail.MessagingExcep：无法向SMTP主机发送命令；嵌套异常是：javax.net.ssl.SSLKeyExc的：RSA预主秘密错误

Question

在jdk1.4中，我可以发送邮件，但当我尝试使用jdk1.6发送邮件时，会出现以下异常。

My Working Environment.
========================
1.OS       :  windwos 2008
2.JAVA     :  JDK1.6
3.Mail Api :  java mail1.4
4.Email    :  gmail
5.smtp port:  465 or 587

Exception in thread "main" java.lang.RuntimeException: javax.mail.MessagingExcep
tion: Can't send command to SMTP host;
nested exception is:
    javax.net.ssl.SSLKeyException: RSA premaster secret error
    at SendMailTLS.main(SendMailTLS.java:47)
Caused by: javax.mail.MessagingException: Can't send command to SMTP host;
nested exception is:
    javax.net.ssl.SSLKeyException: RSA premaster secret error
    at com.sun.mail.smtp.SMTPTransport.sendCommand(SMTPTransport.java:1365)
    at com.sun.mail.smtp.SMTPTransport.sendCommand(SMTPTransport.java:1353)
    at com.sun.mail.smtp.SMTPTransport.ehlo(SMTPTransport.java:794)
    at com.sun.mail.smtp.SMTPTransport.protocolConnect(SMTPTransport.java:33
6)
    at javax.mail.Service.connect(Service.java:258)
    at javax.mail.Service.connect(Service.java:137)
    at javax.mail.Service.connect(Service.java:86)
    at javax.mail.Transport.send0(Transport.java:150)
    at javax.mail.Transport.send(Transport.java:80)
    at SendMailTLS.main(SendMailTLS.java:42)

Answer 1

你用的是JDK的最新版本吗？你能提供不工作的源代码吗？请显示邮件代码的输出:

• System.out.println（“Java version： ” System.getProperty（“java.version”））;
• System.out.println（“Ext dirs： ” System.getProperty（“java.ext.dirs”））;