Java EE (Java Enterprise Edition) General Discussion

Hi
I am getting NullPointerException while trying to fetch messages from a mailbox using IMAP. Following is the code.

            
Session session = Session.getDefaultInstance(System.getProperties(), null);
Store store = session.getStore(IMAP_PROTOCOL); 
store.connect(IMAP_HOST, IMAP_PORT, IMAP_USERNAME, IMAP_PASSWORD);

folderMailbox = store.getDefaultFolder();
folderMailbox = folderMailbox.getFolder(IMAP_MAILBOX);
folderMailbox.open(Folder.READ_WRITE);
int totalMessages = folderMailbox.getMessageCount();
            
if (totalMessages == 0) {
    System.out.println("Mailbox is Empty");
}
System.out.println("Mailbox has: " + totalMessages + " messages");
            
Message[] msgs = folderMailbox.getMessages();
// Use a suitable FetchProfile
FetchProfile fp = new FetchProfile();  
fp.add(FetchProfile.Item.ENVELOPE);  
fp.add(FetchProfile.Item.CONTENT_INFO);
fp.add(FetchProfile.Item.FLAGS);
folderMailbox.fetch(msgs, fp);

for (int i=1; i<msgs.length; i++){
      System.out.println("msgs : " +msgs.getReceivedDate());

System.out.println("Content type : " +msgs[i].getContentType());

}

folderMailbox.close(true); 

store.close();





The exception I am getting is as follows:



java.lang.NullPointerException

at javax.mail.internet.ParameterList.set(ParameterList.java:220)

at com.sun.mail.imap.protocol.BODYSTRUCTURE.parseParameters(BODYSTRUCTURE.java:278)

at com.sun.mail.imap.protocol.BODYSTRUCTURE.<init>(BODYSTRUCTURE.java:165)

at com.sun.mail.imap.protocol.FetchResponse.parse(FetchResponse.java:146)

at com.sun.mail.imap.protocol.FetchResponse.<init>(FetchResponse.java:55)

at com.sun.mail.imap.protocol.IMAPResponse.readResponse(IMAPResponse.java:124)

at com.sun.mail.imap.protocol.IMAPProtocol.readResponse(IMAPProtocol.java:230)

at com.sun.mail.iap.Protocol.command(Protocol.java:263)

at com.sun.mail.imap.protocol.IMAPProtocol.fetch(IMAPProtocol.java:1234)

at com.sun.mail.imap.protocol.IMAPProtocol.fetch(IMAPProtocol.java:1215)

at com.sun.mail.imap.IMAPMessage.fetch(IMAPMessage.java:1015)

at com.sun.mail.imap.IMAPFolder.fetch(IMAPFolder.java:902)

at TestProgram.main(TestProgram.java:52)



I always get this Exception while calling the fetch method. Can anyone let me know what I might be doing wrong.

Thanks in advance.



Rohit