我正在尝试使用java mail api连接到邮件服务器，使用用户loginId密码和主机名。但是，如果任何一个id无法建立连接，那么即使他们拥有正确的凭据，以下ID也无法授权。
循环后我是否要关闭商店值。
sessions = Session.getDefaultInstance(properties);
store = sessions.getStore(emailAccType);
store.connect(emailHost,emailId, emailPwd);
我需要在最后的try / catch块中关闭。
表示以下错误。
javax.mail.MessagingException: Connect failed;
nested exception is:
javax.net.ssl.SSLException: Unrecognized SSL message, plaintext connection?
at com.sun.mail.pop3.POP3Store.protocolConnect(POP3Store.java:161)
at javax.mail.Service.connect(Service.java:288)
at javax.mail.Service.connect(Service.java:169)
at com.scheduler.utils.QuartzImplementation.<init>(QuartzImplementation.java:77)
at com.scheduler.utils.SchedulerRedirect.execute(SchedulerRedirect.java:31)
at org.quartz.core.JobRunShell.run(JobRunShell.java:202)
at org.quartz.simpl.SimpleThreadPool$WorkerThread.run(SimpleThreadPool.java:529)
Caused by: javax.net.ssl.SSLException: Unrecognized SSL message, plaintext connection?
at com.sun.net.ssl.internal.ssl.InputRecord.handleUnknownRecord(Unknown Source)
at com.sun.net.ssl.internal.ssl.InputRecord.read(Unknown Source)
at com.sun.net.ssl.internal.ssl.SSLSocketImpl.readRecord(Unknown Source)
at com.sun.net.ssl.internal.ssl.SSLSocketImpl.performInitialHandshake(Unknown Source)
at com.sun.net.ssl.internal.ssl.SSLSocketImpl.readDataRecord(Unknown Source)
at com.sun.net.ssl.internal.ssl.AppInputStream.read(Unknown Source)
at java.io.BufferedInputStream.fill(Unknown Source)
at java.io.BufferedInputStream.read(Unknown Source)
at java.io.DataInputStream.readLine(Unknown Source)
at com.sun.mail.pop3.Protocol.simpleCommand(Protocol.java:360)
at com.sun.mail.pop3.Protocol.<init>(Protocol.java:104)
at com.sun.mail.pop3.POP3Store.getPort(POP3Store.java:214)
at com.sun.mail.pop3.POP3Store.protocolConnect(POP3Store.java:157)
第一次执行但如果一个失败则会出现此问题。 提前致谢