Error while reading mail from inbox

Question

hi,
i have created a mail program which downloads mails from the ISP. In this program i am storing the message object in a List object and send it to another class for it to continue the download process. but i am getting this error.
javax.mail.MessagingException: Open failed;
nested exception is:
     java.io.EOFException: Unable to lock mailbox
i am giving the code below.
Message mNew[]=null;
Message m=null;
Store store=null;
Folder folder=null;
do
      // this loop checks if the email connection is available
      // if not it tries to get the email connection by calling
      // the getEmailConnection
      if(!isEmailConnected)
        isEmailConnected=ecm.getEmailConnection(hostname,username,password);
      else if(isEmailConnected)
        this.store=ecm.store;
        try
          folder = store.getFolder("INBOX");
          folder.open(Folder.READ_WRITE);
          m=folder.getMessages();
            for(int i=0;i<m.length;i++)
//              This checks if the inbox folder
//                is of POP3 type. if it is of POP3
//                type we get all the messages Unique Identifiers
              if(folder instanceof com.sun.mail.pop3.POP3Folder)
                com.sun.mail.pop3.POP3Folder pop3=(com.sun.mail.pop3.POP3Folder)folder;
                uid=pop3.getUID(m);
// if the list contains the unique identifier
// then no process is executed otherwise
// the unique ids are maintained in the list
// called pop3List.
if(pop3List.contains(uid))
else
mNew[newCount]=m[i];
pop3List.add(uid);
newCount++;
* This adds the new incoming email List of addresses to the method newEmailRecieved
* which is iin another class.
listener.newEmailRecieved(m);
folder.close(true);
catch(Exception ex){System.out.println("Error Occured"+ex);}
while(true);

Answer 1

hi,
to continue with my post, i am using POP3 provider to get the messages. any help is appreciated
regards
Kiran