A DESCRIPTION OF THE PROBLEM :

In source of b86 I found:

            // if the call is relative and the cursorPosition
            // is before/after the ResultSet return the respective
            // out of bounds exception.

                if (relative)
                {
                if (rowPosition == 0)
                {
                    throw new SQLException
                        ("Cursor is positioned before the ResultSet");
                }
                else if (rowPosition > numberOfRows)
                {
                    throw new SQLException
                        ("Cursor is positioned after the ResultSet");
   
                }
                }

This behavior does not match to the current doc. Method relative() is
the _only_ cursor-moving method in ResultSet wich is coded to throw an
SQLException if there is no current row, I suggest to discard this cause
for the SQLException. It's enough to have the return value as "false" in
this case.

In docs for method relative() we have:
    "Note: Calling the method relative(1) is identical to calling the method next() ..."
and
    "SQLException - ...., there is no current row, ...."

In docs for method next() there is _no_ hint like
    "SQLException - ...., there is no current row, ...."

Because method relative() is the _only_ cursor-moving method in ResultSet wich should throw an SQLException if there is no current row, I suggest to discard this cause for the SQLException. It's enough to have returned a false in this case.

On the other hand, I suggest to add, that an SQLException is thrown if a columnName or columnIndex is wrong for the updatexxx methods, instead of doing nothing.


EXPECTED VERSUS ACTUAL BEHAVIOR :
EXPECTED -
method ResultSet#relative() :
    "SQLException - ...., ...."
method ResultSet#updatexxx() :
    "SQLException - ...., if columnXxxx is wrong"

ACTUAL -
 method ResultSet#relative() :
   "SQLException - ...., there is no current row, ...."
method ResultSet#updatexxx() :
    "SQLException - ...., ...."


URL OF FAULTY DOCUMENTATION :
jdk1.6.0/docs/api/java/sql/ResultSet.html#relative(int)