小编Raj*_*r J的帖子

什么时候在Java中调用finalize()方法？

我需要知道何时finalize()调用该方法JVM.我创建了一个测试类,当finalize()通过覆盖它来调用方法时,该测试类会写入文件.它没有被执行.谁能告诉我它没有执行的原因？

java methods garbage-collection finalize call

Raj*_*r J

2018 11-13

320
推荐指数

8
解决办法

47万
查看次数

使用JavaMail发送邮件时的javax.net.ssl.SSLException

javax.mail.MessagingException: Exception reading response;
  nested exception is:
        javax.net.ssl.SSLException: Unrecognized SSL message, plaintext connection?
        at com.sun.mail.smtp.SMTPTransport.readServerResponse(SMTPTransport.java:1764)
        at com.sun.mail.smtp.SMTPTransport.openServer(SMTPTransport.java:1523)
        at com.sun.mail.smtp.SMTPTransport.protocolConnect(SMTPTransport.java:453)
        at javax.mail.Service.connect(Service.java:313)
        at javax.mail.Service.connect(Service.java:172)
        at javax.mail.Service.connect(Service.java:121)
        at javax.mail.Transport.send0(Transport.java:190)
        at javax.mail.Transport.send(Transport.java:120)
        at javaapplication5.SendMail.send(SendMail.java:77)
        at javaapplication5.SendMailTest.main(SendMailTest.java:17)
Caused by: javax.net.ssl.SSLException: Unrecognized SSL message, plaintext connection?
        at com.sun.net.ssl.internal.ssl.InputRecord.handleUnknownRecord(InputRecord.java:523)
        at com.sun.net.ssl.internal.ssl.InputRecord.read(InputRecord.java:355)
        at com.sun.net.ssl.internal.ssl.SSLSocketImpl.readRecord(SSLSocketImpl.java:789)
        at com.sun.net.ssl.internal.ssl.SSLSocketImpl.performInitialHandshake(SSLSocketImpl.java:1112)
        at com.sun.net.ssl.internal.ssl.SSLSocketImpl.readDataRecord(SSLSocketImpl.java:744)
        at com.sun.net.ssl.internal.ssl.AppInputStream.read(AppInputStream.java:75)
        at com.sun.mail.util.TraceInputStream.read(TraceInputStream.java:106)
        at java.io.BufferedInputStream.fill(BufferedInputStream.java:218)
        at java.io.BufferedInputStream.read(BufferedInputStream.java:237)
        at com.sun.mail.util.LineInputStream.readLine(LineInputStream.java:84)
        at com.sun.mail.smtp.SMTPTransport.readServerResponse(SMTPTransport.java:1742)
        ... 9 more

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任何人都可以帮我使用代理使用JavaMail API发送邮件吗？

java jakarta-mail

Raj*_*r J

2009 07-21

23
推荐指数

2
解决办法

5万
查看次数