spring - Access flashattribute in Springflow -

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added value redirectattrs.addflashattribute("some", value); , redirect springflow

how access flashattribute some in springflow? 

<on-start>  <evaluate expression="do.action(???)" result="flowscope.someobject" /> </on-start>

try:

<evaluate expression="webflowutils.getflashattribute(externalcontext, 'some')"/>

with:

@component public final class webflowutils {      public object getflashattribute(externalcontext context, string attributename) {         map<string, ?> flashmap = requestcontextutils.getinputflashmap((httpservletrequest) context.getnativerequest());         return flashmap != null ? flashmap.get(attributename) : null;     } }

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