protected boolean internalLast() throws SQLException {
        throw new UnsupportedOperationException();
    }
Moves this <code>CachedRowSetImpl</code> object's cursor to the last
row and returns <code>true</code> if the operation is successful.
<P>
This method is called internally by the method <code>last</code>
when rows have been deleted and the deletions are not visible.
The method <code>internalLast</code> handles the case where the
last row is a deleted row that is not visible by in turn calling
the method <code>internalPrevious</code>.
<p>
This is a implementation only method and is not required as a standard
implementation of the <code>CachedRowSet</code> interface.

@return <code>true</code> if the cursor moved to the last row;
        <code>false</code> otherwise
@throws SQLException if an error occurs
src/main/java/org/replicadb/rowset/sun/rowset/internal/SyncResolverImpl.java