Steps to reproduce the issue

In GsoC multilingual Project we are trying to check if the item table exist.
So we use $model->getTable() and catch the exception throwed when the table doesn't exist.

That exception in throwed by JModelLegacy here: https://github.com/joomla/joomla-cms/blob/staging/libraries/legacy/model/legacy.php#L472

The problem is: besides this exception (that we can catch with try/catch) we get a warning message that comes from JTable::getInstance (here https://github.com/joomla/joomla-cms/blob/staging/libraries/joomla/table/table.php#L294).

So there is something strange here ... one exception + one warning ?

You can see that warning if, for instance you add to isis template index.php

$table = JTable::getInstance('bla', 'Table', array('dbo' => JFactory::getDbo()));

Expected result

Get an exception that we can catch.

Actual result

We get an exception and a warning instead of only an exception.

System information (as much as possible)

Latest staging

Additional comments

@mbabker i ask for your help on this. Do you think that warning can be removed or replaced for an exception with B/C?