For anyone else still having this issue, I thought it may be helpful to 
share that I encountered a similar exception when attempting to construct a 
json number with an NaN value

On Saturday, July 28, 2012 at 3:46:00 PM UTC-4, Sydney wrote:
>
> After deploying my app on appengine, I get the following exception: 
>
> com.google.web.bindery.requestfactory.server.RequestFactoryServlet doPost: 
> Unexpected error
> java.lang.RuntimeException: Could not parse payload: payload[0] = N
>     at 
> com.google.web.bindery.autobean.vm.impl.JsonSplittable.create(JsonSplittable.java:70)
>     at 
> com.google.web.bindery.autobean.shared.impl.StringQuoter.create(StringQuoter.java:46)
>     at 
> com.google.web.bindery.autobean.shared.ValueCodex$Type$7.encode(ValueCodex.java:122)
>     at 
> com.google.web.bindery.autobean.shared.ValueCodex.encode(ValueCodex.java:315)
>     at 
> com.google.web.bindery.autobean.shared.impl.AutoBeanCodexImpl$ValueCoder.extractSplittable(AutoBeanCodexImpl.java:500)
>     at 
> com.google.web.bindery.autobean.shared.impl.AbstractAutoBean.setProperty(AbstractAutoBean.java:277)
>     at 
> com.google.web.bindery.autobean.vm.impl.ProxyAutoBean.setProperty(ProxyAutoBean.java:253)
>     at 
> com.google.web.bindery.autobean.vm.impl.BeanPropertyContext.set(BeanPropertyContext.java:44)
>     at 
> com.google.web.bindery.requestfactory.server.Resolver$PropertyResolver.visitValueProperty(Resolver.java:154)
>     at 
> com.google.web.bindery.autobean.vm.impl.ProxyAutoBean.traverseProperties(ProxyAutoBean.java:289)
>     at 
> com.google.web.bindery.autobean.shared.impl.AbstractAutoBean.traverse(AbstractAutoBean.java:166)
>     at 
> com.google.web.bindery.autobean.shared.impl.AbstractAutoBean.accept(AbstractAutoBean.java:101)
>     at 
> com.google.web.bindery.requestfactory.server.Resolver.resolveClientValue(Resolver.java:395)
>     at 
> com.google.web.bindery.requestfactory.server.SimpleRequestProcessor.processInvocationMessages(SimpleRequestProcessor.java:483)
>     at 
> com.google.web.bindery.requestfactory.server.SimpleRequestProcessor.process(SimpleRequestProcessor.java:225)
>     at 
> com.google.web.bindery.requestfactory.server.SimpleRequestProcessor.process(SimpleRequestProcessor.java:127)
>     at 
> com.google.web.bindery.requestfactory.server.RequestFactoryServlet.doPost(RequestFactoryServlet.java:133)
>     at javax.servlet.http.HttpServlet.service(HttpServlet.java:637)
>
> Any idea of what the exception means? Thanks
>

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