Run folderlist.java 1.5.4 with Gmail SSL IMAP

Q

How to run folderlist.java with javax.mail-1.5.4.jar with Gmail using SSL IMAP protocol? I have a valid Gmail email account.

✍: FYIcenter.com

A

folderlist.java in javamail-samples.zip can be used to retrieve mail folder information from Gmail mail server using SSL IMAP protocol. Here is an execution session of folderlist.java with javax.mail-1.5.4.jar:

fyicenter>cd \local\javamail-1.5.4\javamail-samples

local\javamail-1.5.4\javamail-samples>java -version
java version "1.8.0_45"

local\javamail-1.5.4\javamail-samples>javac -cp .;..\javax.mail-1.5.4.jar
   folderlist.java

local\javamail-1.5.4\javamail-samples>java -cp .;..\javax.mail-1.5.4.jar
   folderlist -D -L imaps://john:password@imap.gmail.com

DEBUG: setDebug: JavaMail version 1.5.4
DEBUG: getProvider() returning javax.mail.Provider[STORE,imaps,com.sun.mail.imap
.IMAPSSLStore,Oracle]
DEBUG IMAPS: mail.imap.fetchsize: 16384
DEBUG IMAPS: mail.imap.ignorebodystructuresize: false
DEBUG IMAPS: mail.imap.statuscachetimeout: 1000
DEBUG IMAPS: mail.imap.appendbuffersize: -1
DEBUG IMAPS: mail.imap.minidletime: 10
DEBUG IMAPS: closeFoldersOnStoreFailure
DEBUG IMAPS: trying to connect to host "imap.gmail.com", port 993, isSSL true
* OK Gimap ready for requests from 71.174.32.174 h124mb215281799ywc
A0 CAPABILITY
* CAPABILITY IMAP4rev1 UNSELECT IDLE NAMESPACE QUOTA ID XLIST CHILDREN X-GM-EXT-
1 XYZZY SASL-IR AUTH=XOAUTH2 AUTH=PLAIN AUTH=PLAIN-CLIENTTOKEN AUTH=OAUTHBEARER
AUTH=XOAUTH
A0 OK Thats all she wrote! h124mb215281799ywc
DEBUG IMAPS: AUTH: XOAUTH2
DEBUG IMAPS: AUTH: PLAIN
DEBUG IMAPS: AUTH: PLAIN-CLIENTTOKEN
DEBUG IMAPS: AUTH: OAUTHBEARER
DEBUG IMAPS: AUTH: XOAUTH
DEBUG IMAPS: protocolConnect login, host=imap.gmail.com, user=john,
DEBUG IMAPS: AUTHENTICATE PLAIN command trace suppressed
DEBUG IMAPS: AUTHENTICATE PLAIN command result: A1 NO [AUTHENTICATIONFAILED] Inv
alid credentials (Failure)
Exception in thread "main" javax.mail.AuthenticationFailedException: [AUTHENTICA
TIONFAILED] Invalid credentials (Failure)
        at com.sun.mail.imap.IMAPStore.protocolConnect(IMAPStore.java:723)
        at javax.mail.Service.connect(Service.java:364)
        at javax.mail.Service.connect(Service.java:245)
        at javax.mail.Service.connect(Service.java:194)
        at folderlist.main(folderlist.java:107)

The output shows that:

  • The javax.mail-1.5.4.jar contains JavaMail API classes like javax.mail.Service.
  • The javax.mail-1.5.4.jar contains IMAP implementation classes like com.sun.mail.imap.IMAPStore.protocolConnect.
  • JavaMail 1.5.4 supports SSL IMAP protocol.
  • imap.gmail.com server supports SSL IMAP protocol on port 993.
  • The authentication failed exception is expected, because the account name and password are invalid. If you provide your real gmail account name and password, you will get correct result.

 

Run folderlist.java 1.5.4 with Gmail SSL POP3

folderlist Sample Program with JavaMail 1.5.4

Download and Install JavaMail Library

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2016-01-11, 2583👍, 0💬