JavaDoc error

Change-Id: I78f6b6b017a221291af9345a372e6a5c8ccda30a
Signed-off-by: Egon Willighagen <egonw@users.sourceforge.net>
Change in exception message.

Change-Id: If71dd20d3e543657959e72f2eee9ffa865f42b54
Signed-off-by: Egon Willighagen <egonw@users.sourceforge.net>