Play Framework 2.0, Scala define input type and print a list -

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I am using Play Framework 2.0, I am trying to print a table, and the types of my data Based on this, my program input will be different. I have already figured out how to use the class of instanceoff in my input, but when I do it on the list, it gives returns: 

  Non-variable type logic models Type in message in Java   
 Below is my code:  
  @ (title: string) () content: object) & lt; Tr & gt; & Lt; TD & gt; @ Title & lt; / TD & gt; @if (content.isInstanceOf [date]) {& lt; Td> @ Content.asInstanceOf [date]. Format ("yyyy-MM-dd") & lt; / Td> } And {@if (content.isInstanceOf [list [medicine]]) {& lt; Td> & Lt; Table & gt; For @ (a & lt; - content) {@ a.name & lt; Br> } & Lt; / Table & gt; & Lt; TD & gt; } Other {& lt; Td> @ Content & lt; / Td> }}   
  
 Please help ...   
 
 
 I do not think the warning is blocking compilation, it can obscure the actual compilation error.  If  in the examination (the warning should be removed)  
 Try  content.isInstanceOf [java.util.List [_]] .  
 For this you  inserted  content: for  (a & lt; - content.asInstanceOf [java.util.List [medicine]])  In Expression for  
 I am not sure how it is possible to know that a fully qualified name can be helpful from Java's  list  versus the  list .

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