setMultipartParameters(HashMap) undefined for type DefaultMultipartHttpServletRequest

protected void initializeMultipart()
{

setMultipartFiles( new HashMap() );
setMultipartParameters( new HashMap());

}
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I got an error while compiling this code: The method setMultipartParameters(HashMap) is undefined for the type new DefaultMultipartHttpServletRequest(){}

But the method "setMultipartParameters(Map)" is defined for the type "DefaultMultipartHttpServletRequest", i confirmed that.

Can you please help me in solving this error.