required java.util.ArrayList,found java.lang.Object : I do not understand the reason for this error

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逝去的感伤
逝去的感伤 2021-01-28 09:30

Following are some snippets from a jsp page:

<%! ArrayList songList = new ArrayList(); %>

    <%
        songList = StoreSongLink.linkLis         


        
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  •  情书的邮戳
    2021-01-28 10:13

    for (ArrayList list : songList){}
    

    must be

    for (Object list : songList){}
    

    Because songList declared type is ArrayList(equal ArrayList)

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