I have saved an ArrayList to the session object. I am trying to retrieve it using
sriList = session.getAttribute("scannedMatches");
I am getting the compile time error "Cannot convert from Object to ArrayList". How can I get my ArrayList back from the session object.
The HttpSession#getAttribute() method returns java.lang.Object:
public java.lang.Object getAttribute(java.lang.String name)
Did you try to cast the returned object?
sriList = (ArrayList)session.getAttribute("scannedMatches");
You have to cast it.
sriList = (ArrayList)session.getAttribute("scannedMatches");
try this:
Object scannedMatchesObj = session.getAttribute("scannedMatches");
if ( scannedmatchesObj instanceOf List ){
sriList = (ArrayList)scannedMatchesObj;
//Do your stuff...
}
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