cannot construct Atom(null)

[Jon]

Hi There -

We've run across a situation using 2.4-M2 where the following
exception occurs with no stack trace and the UI hangs:
[pool-2-thread-5] ERROR net.liftweb.util.Schedule -
java.lang.IllegalArgumentException: cannot construct Atom(null)

Found the source of the problem in our code and corrected it but am
wondering if Lift could help others a bit more in such situations with
more information. It was discussed a bit in a prior discussion:
http://groups.google.com/group/liftweb/browse_thread/thread/2dc85f60a8c13979/59e700a9b0406ef1?lnk=gst&q=cannot+construct+Atom#59e700a9b0406ef1

Thanks,
Jon

[David Pollak]

On Fri, Aug 19, 2011 at 5:08 AM, Jon <jon.st...@gmail.com> wrote:

Hi There -

We've run across a situation using 2.4-M2 where the following
exception occurs with no stack trace and the UI hangs:
[pool-2-thread-5] ERROR net.liftweb.util.Schedule -
java.lang.IllegalArgumentException: cannot construct Atom(null)

Can you post the code that was trying to construct the Atom(null)?
 

Found the source of the problem in our code and corrected it but am
wondering if Lift could help others a bit more in such situations with
more information. It was discussed a bit in a prior discussion:
http://groups.google.com/group/liftweb/browse_thread/thread/2dc85f60a8c13979/59e700a9b0406ef1?lnk=gst&q=cannot+construct+Atom#59e700a9b0406ef1

Thanks,
Jon

--
You received this message because you are subscribed to the Google Groups "Lift" group.
To post to this group, send email to lif...@googlegroups.com.
To unsubscribe from this group, send email to liftweb+u...@googlegroups.com.
For more options, visit this group at http://groups.google.com/group/liftweb?hl=en.

--
Lift, the simply functional web framework http://liftweb.net

Simply Lift http://simply.liftweb.net
Follow me: http://twitter.com/dpp
Blog: http://goodstuff.im

[Jon]

Winnowing it down...

def all(in: NodeSeq): NodeSeq = page.flatMap(item =>
bind("item", in,
"starRating" -> (if (item.hotel.diamondRating == null) "" else
item.hotel.diamondRating)
)
)

The startRating line used to be just
"starRating" -> item.hotel.diamondRating
but when some data showed up unexpectedly dirty, diamondRating can be
null when it should instead be blank.

Thanks,
Jon


On Aug 19, 12:43 pm, David Pollak <feeder.of.the.be...@gmail.com>
wrote:

> On Fri, Aug 19, 2011 at 5:08 AM, Jon <jon.steel...@gmail.com> wrote:
> > Hi There -
>
> > We've run across a situation using 2.4-M2 where the following
> > exception occurs with no stack trace and the UI hangs:
> > [pool-2-thread-5] ERROR net.liftweb.util.Schedule -
> > java.lang.IllegalArgumentException: cannot construct Atom(null)
>
> Can you post the code that was trying to construct the Atom(null)?
>
>
>
>
>
>
>
>
>
>
>
> > Found the source of the problem in our code and corrected it but am
> > wondering if Lift could help others a bit more in such situations with
> > more information. It was discussed a bit in a prior discussion:
>

> >http://groups.google.com/group/liftweb/browse_thread/thread/2dc85f60a...

>
> > Thanks,
> > Jon
>
> > --
> > You received this message because you are subscribed to the Google Groups
> > "Lift" group.
> > To post to this group, send email to lif...@googlegroups.com.
> > To unsubscribe from this group, send email to
> > liftweb+u...@googlegroups.com.
> > For more options, visit this group at
> >http://groups.google.com/group/liftweb?hl=en.
>
> --
> Lift, the simply functional web frameworkhttp://liftweb.net

> Simply Lifthttp://simply.liftweb.net

[David Pollak]

Please open a ticket (http://ticket.liftweb.net you must be a watcher of the LiftWeb space on Assembla to open tickets) and assign it to me.  Please reference this thread.

Lift, the simply functional web framework http://liftweb.net

Simply Lift http://simply.liftweb.net

[Jon]

https://www.assembla.com/spaces/liftweb/tickets/1091-exception--cannot-construct-atom(null)


On Aug 19, 2:03 pm, David Pollak <feeder.of.the.be...@gmail.com>
wrote:
> Please open a ticket (http://ticket.liftweb.netyou must be a watcher of the