tag:blogger.com,1999:blog-26619214.post4461410818551978349..comments2010-11-03T08:20:57.926-04:00Comments on Ann Lewkowicz: The Joy of HashSetsAnnhttp://www.blogger.com/profile/04912097426262293763noreply@blogger.comBlogger2125tag:blogger.com,1999:blog-26619214.post-31218720462623554492010-11-03T08:20:57.926-04:002010-11-03T08:20:57.926-04:00Take care when inserting custom objects that overr...Take care when inserting custom objects that override equals/hashcode into a hashset. If the hashcode on the object changes (<a href="http://stackoverflow.com/questions/462451/gethashcode-guidelines-in-c" rel="nofollow">even though it's not supposed to!</a>) while it is currently stored in the hashset, you can potentially lose you object in the set. Unless the whole set goes out of scope, the "missing" object will fail to be garbage collected too, which can open up a very hard to track down memory leak...<br /><br />Be sure to follow custom HashCode's guidelines <a href="http://imgs.xkcd.com/comics/goto.png" rel="nofollow">or very bad things will happen</a>Stevehttp://www.blogger.com/profile/06609172873690727496noreply@blogger.comtag:blogger.com,1999:blog-26619214.post-88683796886914144522010-11-03T08:16:54.232-04:002010-11-03T08:16:54.232-04:00This comment has been removed by the author.Stevehttp://www.blogger.com/profile/06609172873690727496noreply@blogger.com