Comments on: Mr. Gosling - why did you make URL equals suck?!? http://brian.pontarelli.com/2006/12/05/mr-gosling-why-did-you-make-url-equals-suck/ Brian Pontarelli Wed, 10 Mar 2010 14:33:40 +0000 http://wordpress.org/?v=2.6 By: Munsey http://brian.pontarelli.com/2006/12/05/mr-gosling-why-did-you-make-url-equals-suck/#comment-34982 Munsey Sat, 01 Nov 2008 23:11:23 +0000 http://brian.pontarelli.com/2006/12/05/mr-gosling-why-did-you-make-url-equals-suck/#comment-34982 Not only do you have the issue of equals returning true for ”http://foo.example.com” and ”http://www.example.com” when it should return false, the opposite also occurs. If you are doing load balancing with a round robin DNS, there is a good chance that "http://www.mysite.com" and "http://www.mysite.com" return false when they should return true. Not only do you have the issue of equals returning true for ”http://foo.example.com” and ”http://www.example.com” when it should return false, the opposite also occurs. If you are doing load balancing with a round robin DNS, there is a good chance that “http://www.mysite.com” and “http://www.mysite.com” return false when they should return true.

]]> By: werutzb http://brian.pontarelli.com/2006/12/05/mr-gosling-why-did-you-make-url-equals-suck/#comment-33340 werutzb Wed, 08 Oct 2008 02:56:40 +0000 http://brian.pontarelli.com/2006/12/05/mr-gosling-why-did-you-make-url-equals-suck/#comment-33340 Hi! I would like make better my SQL experience. I red that many SQL books and would like to read more about SQL for my work as db2 database manager. What would you recommend? Thanks, Werutz Hi!

I would like make better my SQL experience.
I red that many SQL books and would like to
read more about SQL for my work as db2 database manager.

What would you recommend?

Thanks,
Werutz

]]> By: Ramu http://brian.pontarelli.com/2006/12/05/mr-gosling-why-did-you-make-url-equals-suck/#comment-13932 Ramu Fri, 02 May 2008 05:53:32 +0000 http://brian.pontarelli.com/2006/12/05/mr-gosling-why-did-you-make-url-equals-suck/#comment-13932 how to make two objects equal in java how to make two objects equal in java

]]> By: Brian Pontarelli http://brian.pontarelli.com/2006/12/05/mr-gosling-why-did-you-make-url-equals-suck/#comment-11826 Brian Pontarelli Wed, 16 Apr 2008 15:34:56 +0000 http://brian.pontarelli.com/2006/12/05/mr-gosling-why-did-you-make-url-equals-suck/#comment-11826 @Alan, Okay, first off, I'm not crying. I'm pointing out an issue for others to be careful of. I'm perfectly capable of fixing it and offer a suggestion in the post about how to avoid URL - namely always use java.net.URI. Secondly, you're not really attacking my code are you? That's a bad move. My code is available in many open source projects and if you bothered to look around and check out some of my code, you'd see that it is not only well written and tested, but usually not prone to horrendous issues like java.net.URL. Probably should do some research before you post next time. @Alan,

Okay, first off, I’m not crying. I’m pointing out an issue for others to be careful of. I’m perfectly capable of fixing it and offer a suggestion in the post about how to avoid URL - namely always use java.net.URI.

Secondly, you’re not really attacking my code are you? That’s a bad move. My code is available in many open source projects and if you bothered to look around and check out some of my code, you’d see that it is not only well written and tested, but usually not prone to horrendous issues like java.net.URL. Probably should do some research before you post next time.

]]> By: Alan http://brian.pontarelli.com/2006/12/05/mr-gosling-why-did-you-make-url-equals-suck/#comment-11821 Alan Wed, 16 Apr 2008 14:36:52 +0000 http://brian.pontarelli.com/2006/12/05/mr-gosling-why-did-you-make-url-equals-suck/#comment-11821 Yes Brian, it is final. BUT you can write your own myEquals() and iterator instead can you not? And to those saying that the writer should summarily be sacked, I'ld love to see your code :) Stop crying about 12 year old technology and do something about it. Damn programmers are so lazy now days that if it isn't written for them they can't do it. All lazy programmers want to do is call API's and expect them to work the way THEY want. Yes Brian, it is final. BUT you can write your own myEquals() and iterator instead can you not?

And to those saying that the writer should summarily be sacked, I’ld love to see your code :) Stop crying about 12 year old technology and do something about it. Damn programmers are so lazy now days that if it isn’t written for them they can’t do it. All lazy programmers want to do is call API’s and expect them to work the way THEY want.

]]> By: Brian Pontarelli http://brian.pontarelli.com/2006/12/05/mr-gosling-why-did-you-make-url-equals-suck/#comment-5099 Brian Pontarelli Mon, 29 Oct 2007 18:32:32 +0000 http://brian.pontarelli.com/2006/12/05/mr-gosling-why-did-you-make-url-equals-suck/#comment-5099 URL is final, so unless you compile in some AOP, you can't do much with it. URL is final, so unless you compile in some AOP, you can’t do much with it.

]]> By: Alex bell http://brian.pontarelli.com/2006/12/05/mr-gosling-why-did-you-make-url-equals-suck/#comment-5030 Alex bell Wed, 17 Oct 2007 06:26:29 +0000 http://brian.pontarelli.com/2006/12/05/mr-gosling-why-did-you-make-url-equals-suck/#comment-5030 Hello I agree,The code is 12 years old, and was written with a set-top box system as the target platform.Override equals() if you don’t like it? Regards, Alex Bell Hello
I agree,The code is 12 years old, and was written with a set-top box system as the target platform.Override equals() if you don’t like it?

Regards,
Alex Bell

]]> By: Jose http://brian.pontarelli.com/2006/12/05/mr-gosling-why-did-you-make-url-equals-suck/#comment-3729 Jose Mon, 28 May 2007 14:14:29 +0000 http://brian.pontarelli.com/2006/12/05/mr-gosling-why-did-you-make-url-equals-suck/#comment-3729 Not only is it wrong, but it can be very slow. It goes to DNS to do equals or hashCode. Not only that, it appears that "file" URLs do a host lookup too. Plus the boot class loader seems to rely on this to load JAR files. Not only is it wrong, but it can be very slow. It goes to DNS to do equals or hashCode. Not only that, it appears that “file” URLs do a host lookup too. Plus the boot class loader seems to rely on this to load JAR files.

]]> By: ProgonkaOne http://brian.pontarelli.com/2006/12/05/mr-gosling-why-did-you-make-url-equals-suck/#comment-3218 ProgonkaOne Wed, 14 Mar 2007 03:53:47 +0000 http://brian.pontarelli.com/2006/12/05/mr-gosling-why-did-you-make-url-equals-suck/#comment-3218 NSU - 4efer, 5210 - rulez <a href="http://bk-magazin.com" rel="nofollow"></a> NSU - 4efer, 5210 - rulez

]]> By: Abhi Beckert http://brian.pontarelli.com/2006/12/05/mr-gosling-why-did-you-make-url-equals-suck/#comment-3084 Abhi Beckert Sun, 04 Feb 2007 06:03:52 +0000 http://brian.pontarelli.com/2006/12/05/mr-gosling-why-did-you-make-url-equals-suck/#comment-3084 <blockquote>Umm..if the IP addresses are identical they are in fact the same URL for all intents and purposes and therefore equal assuming you are using the same application, say a browser, to access them which uses a well-known port. Only one app can bind to one port on an IP at a time right?</blockquote> Wrong. I work closely with the it manager of a small datacenter, and they have as many as 500 websites running on a single external IP address. In other words, this comparison method could say that http://foo.net is equal to http://bar.org.au, simply by both of those domains being hosted with the same company.

Umm..if the IP addresses are identical they are in fact the same URL for all intents and purposes and therefore equal assuming you are using the same application, say a browser, to access them which uses a well-known port. Only one app can bind to one port on an IP at a time right?

Wrong. I work closely with the it manager of a small datacenter, and they have as many as 500 websites running on a single external IP address. In other words, this comparison method could say that http://foo.net is equal to http://bar.org.au, simply by both of those domains being hosted with the same company.

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