Java mail don't return subject

I'm using javamail to rescue mails of inbox. I get all mails from inbox, but the subject(message.getSubject()) return null.

I research in several sites and all proposed solutions not work.

This problem occurs only in the Tomcat6, if a execute even code in java project for main method i get all atributis, include subject. I'm user de SSL protocol (pop3s).

Thanks for help

public void getMails(final String host, final int port, final String user, final String password){

   final Session session = Session.getInstance(System.getProperties(), null);
   final Store store = session.getStore("pop3s");   

   store.connect(host, port, user, password);
   Folder inbox = store.getFolder("INBOX");
   inbox.open(Folder.READ_WRITE);
   int count = inbox.getMessageCount();
   System.out.println(" Count Emails "+count);

   final Message[] messages = inbox.getMessages();                
   for (final Message message : messages) { 
       //This return null
       System.out.print("mail subject: " + message.getSubject() + " send at: " + message.getSentDate());
       //This return body of mail
       System.out.print("mail subject: " + message.getContent().toString());
}

My output for the method Main directly on eclipse:

MessageCount: 4

full name: INBOX

NewMessageCount: 0

getDescription: null

getFileName: null

getMessageNumber: 1

getSize: 2297

getSentDate: Mon Aug 03 17:23:10 BRT 2015

from: Silvano Wojczak silvano.wojczak@softexpertjlle.onmicrosoft.com

Content: javax.mail.internet.MimeMultipart@6769ba97

Content getClass: class javax.mail.internet.MimeMultipart

For log4j in TomCat6:

MessageCount: 4

full name: INBOX

NewMessageCount: 0

getDescription: null

getFileName: null

getMessageNumber: 1

getSize: 6731

getSentDate: null

from: null

Content: javax.mail.internet.MimeMultipart@6769ba97

Content getClass: class javax.mail.internet.MimeMultipart