I've added code tags to your original post to make the code more readable. Next time, you can do so yourselves using the Code button when composing your post.
What exact problems are you encountering? Without the details, we aren't able to help much (see
TellTheDetails). There is one obvious bug in your code, though:
This is a bad idea: if these exceptions get thrown, you catch them and do nothing. As a result, whatever is in the
ll list at that time gets returned, probably just an empty list.
You should throw an unchecked exception from the catch clause, and also make sure that the exception gets written somewhere where it can be read, so that you can investigate the issue.