Getting "Failed getting message subject exception is shown" exception when the subject is actually retrieved

[RodrigoBerto]

m contacting you since Im using your gmail4j java library in order to get some messages from a gmail account. This is being used just for testing matters and I have some tests running in concurrence agains the same account in order to retrieve the subjects of certain emails.
THe issue Im dealing with is that despite all the subjects are retrieved as expected, the com.googlecode.gmail4j.GmailException: Failed getting message subject exception is shown.
As you can see in this assert, the subjects matches which means the email's subject was found "Code: OK, Message: Going to verify if email subject: Failure alert opened -- Crash-Dummy-BE-30050 matches with expected one: Failure alert opened -- Crash-Dummy-BE-30050 "

Any idea?