Article View: borland.public.jbuilder.java.language
Article #115Converting legacy code to use generics
From: John Steel
Date: Fri, 29 Jun 2007 10:42
Date: Fri, 29 Jun 2007 10:42
32 lines
1731 bytes
1731 bytes
Hi, I'm trying to get rid of the warning ""GameListRenderer.java":
[unchecked] unchecked conversion; found : java.util.Collection, required:
java.util.Collection<? extends java.util.Collection> at line 95, column 83
in the following line:
ArrayList<Collection> gameList = new ArrayList <Collection>
(games.getValues());
games is an instance of this:
public class GameListManager {
TreeMap<String, GameRec> gameListTreeMap;
public GameListManager() {
gameListTreeMap = new TreeMap<String, GameRec>();
}
public Collection getValues() {
return gameListTreeMap.values();
}
...
}
As you can see getValues() returns a Collection, so I can't see what the
warning is trying to tell me.
Thanks very much
JB2006/jdk6.01
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X-Google-Thread: f74b3,49d96784a5821e34,start X-Google-Attributes: gidf74b3,public,usenet X-Google-Language: ENGLISH,ASCII-7-bit Reply-To: "John Steel" <john.steel@phonewebcam.com> From: "John Steel" <john.steel@phonewebcam.com> Newsgroups: borland.public.jbuilder.java.language Subject: Converting legacy code to use generics Date: Fri, 29 Jun 2007 11:42:39 +0100 Lines: 34 Organization: www.phonewebcam.com X-Priority: 3 X-MSMail-Priority: Normal X-Newsreader: Microsoft Outlook Express 6.00.2900.2180 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.2180 X-RFC2646: Format=Flowed; Original NNTP-Posting-Host: 80.192.241.252 Message-ID: <4684e22c@newsgroups.borland.com> X-Trace: newsgroups.borland.com 1183113772 80.192.241.252 (29 Jun 2007 03:42:52 -0700) Path: arc1-ca.pugleaf.net!g2news1.google.com!news2.google.com!news.glorb.com!newsfeeds.ihug.co.nz!ihug.co.nz!newsgroups.borland.com!not-for-mail