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SWD: Method written in FormAction is expecting RequestContext as Parameter

 
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I have a page which displays the list of products. I created a action bean for product which extends the ActionForm Class, so I can mention the formObjectName and formObjectClass, as mentioned in Code1 below.
I wrote code for reference data in the ProductAction class,to be displayed in the jsp. It is given in Code2 below It is getting displayed.

I have got three records of product(i.e three rows to be displayed).

For this I used the same ProductAction Class to render the data (using <render-view> element of swf) before the jsp is displayed. Just as I have done above I stored above, I wrote a method to retrieve the arraylist from backend. The method takes no arguments and returns an arraylist, the arraylist of product. I stored it in MutableAttributeMap as I have done above. For this method it is asking the following as paramenter and throwing the following exception. I just dont understand why it is expecting Requestcontext as parameter. I am calling this retireveProducts() method from a method whic accepts requestcontext as parameter and returns Event as return type. The complete Action class is given in code 3
Exception

Code1

Code2

Code3
 
VenkataPrasad Regula
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I have also tried the following code by passing the requestcontext as parameter. It is giving the following exception
Exception

Code
 
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