what is a sealed package?

From	"Jking" <jking@THRWHITE.remove-dii-this>
Subject	what is a sealed package?
Message-ID	<g70f8s$gc6$1@news.cn99.com> (permalink)
Newsgroups	comp.lang.java.security
Date	2011-04-27 16:08 +0000
Organization	TDS.net

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  To: comp.lang.java.programmer
Hi,

I am quite confused about what is a sealed package.
In java.lang.Package, there is a method:

isSealed()

or

isSealed(URL url)

So why to seal a package ? the usage? how to make a package sealed?

Anyone could kindly explain it for me?

Thank you.

Justin

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what is a sealed package? "Jking" <jking@THRWHITE.remove-dii-this> - 2011-04-27 16:08 +0000
  Re: what is a sealed pack "=?ISO-8859-1?Q?Arne_Vajh=" <=?iso-8859-1?q?arne_vajh=@THRWHITE.remove-dii-this> - 2011-04-27 16:08 +0000

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